This invention relates to a binary signaling scheme for use in a transmitter comprising a semiconductor radiation source where the driving current and thus also the radiation output level is modulated by switching the driving current on and off. However, the modulation of the driving current is adapted to not wait for the radiation response to follow the complete rise or fall curve but to switch between two (or a larger number of) selected radiation output levels. During prolonged sequences of zeros (or ones), the driving current is switched to keep the radiation output level between a certain minimum and maximum level. This range of radiation output levels is adaptively selected in accordance with characteristics of the driving current, the optical transmission channel, the radiation source and/or the radiation detector.
A trim attachment system includes a light fixture housing and a first coiled spring bracket having a first coil section and a first elongated section. The first elongated section is positioned in the light fixture housing and attached to the light fixture housing, where the first coil section is attachable to a trim to pull up the trim toward an opening of the housing. The trim attachment system further includes a second coiled spring bracket having a second coil section and a second elongated section. The second elongated section is positioned in the light fixture housing and attached to the light fixture housing, where the second coil section is attachable to the trim to pull up the trim toward the opening of the housing.
F21V 17/16 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts of the lighting device; Snap action mounting
3.
MULTI-CHANNEL DRIVER WITH SWITCHABLE BY PASS CAPACITORS
The invention relates to a lighting unit comprising a power converter for providing a regulated power to a first LED load where the first LED load comprises at least one LED, wherein the first LED load is coupled to the power converter, a series combination of a first capacitor and a first switch coupled in series with each other, wherein the series combination is coupled in parallel with the LED load, wherein the power converter is arranged to operate in a first mode, provide a first amount of the regulated power to the first LED load, and wherein the first switch is closed, and in a second mode, provide a second amount of the regulated power to the first LED load, wherein the second amount of the regulated power to the first LED load is lower than the first amount of the regulated power to the first LED load, and wherein the first switch is opened.
In order to provide a balance between a fast start-up in start-up phase and a low light output ripple in normal operation phase, it is provided a LED driving circuit comprising: an input to receive a LED driving current, a buffer circuit adapted to buffer said LED driving current, and an output to be connected to LED and adapted to output the LED driving current, after buffered, to the LED, characterized in that, further comprises a buffer adjustment circuit adapted to adjust the buffer capability of the buffer circuit at a first level, in a start-up phase of the LED driving circuit when the LED driving circuit starts to receive said LED driving current, and adjust the buffer capability of the buffer circuit at a second level larger than the first level in a normal operation phase later than the start-up phase.
H05B 45/59 - Circuit arrangements for operating light-emitting diodes [LED] responsive to LED life; Protective circuits for reducing or suppressing flicker or glow effects
H05B 47/17 - Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations
5.
A CONTROLLER FOR CONFIGURING A LIGHTING SYSTEM AND A METHOD THEREOF
A method of configuring a lighting system is disclosed. The lighting system comprises a lighting control device, the lighting control device comprising a user input element, wherein the user input element comprises an icon indicative of a control function of the lighting system. The method comprises: obtaining an image comprising the lighting control device, analyzing the image, identifying the user input element in the image, identifying the icon that has been applied to the user input element, determining the control function of the identified icon, and configuring the lighting system by associating the control function with the user input element, such that when the user input element is activated by a user, one or more lighting units of the lighting system are controlled in accordance with the control function.
G06V 10/22 - Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
In an optical wireless communication, OWC, system, an apparatus (200) is configured to operate in a first mode to enable a first functionality where the apparatus acts as a bridge device between an OWC access point (400) and a first end device out of one or more end devices (300a, 300b, 300c, 300d), or in a second mode to enable a second functionality where the apparatus relays data between the first end device and a second end device out of the one or more end devices (300a, 300b, 300c, 300d). The apparatus (200) communicates with the OWC access point (400) by means of a first type of optical wireless link (450) using a first modulation scheme; and communicates with the first end device by means of a second type of optical wireless link (350) using a second modulation scheme. The first type of optical wireless link (450) has a wider beam angle than the second type of optical wireless link (350).
A system for controlling a lighting device to render light effects while an audio rendering device plays a song is configured to receive information from an audio streaming service and determine the light effects based on the information. The information is indicative of a plurality of sections of the song. The system is further configured to determine, from the information, a first median or average of an audio characteristic in a first section (71) and a second median or average of the audio characteristic in a second consecutive section (72), determine whether a difference between the first and second medians or averages exceeds a threshold, gradually reduce a light intensity (61) and/or color saturation of the light effects during a period (74) before the start (65) of the second section in dependence on the difference exceeding the threshold, and control the lighting device to render the light effects.
A controller for controlling a lighting system is disclosed. The lighting system comprises a lighting device configured to receive lighting control commands from the controller via a wireless network, and a separate power switching device configured to receive, via the wireless network, power switching control commands from the controller to switch between a first mode wherein a load connected to the power switching device is powered, and a second mode the load connected to the power switching device is unpowered. The controller comprises a transmitter configured to transmit the lighting control commands to the lighting device and configured to transmit the power switching control commands to the power switching device, one or more inputs configured to obtain one or more first signals indicative of that the lighting device is connected to the separate power switching device as the load, and to obtain a second signal indicative of a current mode of the power switching device, and a processor configured to determine that the lighting device is connected to the power switching device based on the one or more first signals, to transmit a lighting control command to the lighting device to control the lighting device, and, if the power switching device is in the second mode, to transmit a power switching control command to the power switching device to switch the power switching device to the first mode.
A tubular LED lamp to be used with an external electronic power controlling device which is adapted to provide an input voltage to the lamp, comprising: a LED unit; a driving circuit for the LED unit; and a safety detection circuit adapted to detect whether the tubular LED lamp is correctly connected to an external lamp fixture; characterized in that further comprising: a holding current providing circuit adapted to provide a holding current through the electronic controlling device so as to maintain the electronic controlling device to be conductive; and a controlling circuit adapted to synchronize the safety detection circuit with the holding current providing circuit such that the safety detection circuit is adapted to carry out the detection when the hold current providing circuit is adapted to provide the holding current and the electronic controlling device is conductive; wherein the controlling circuit is adapted to deactivate the holding current providing circuit and the safety detection circuit after the detection in one cycle of the input voltage,
A method of and a node device for relaying a message in a network of operatively interconnected node devices arranged along at least one elongated geographic track is disclosed. Each node device is provisioned with a unique network address associated with a geographic location of the node device in the network. The method comprising the steps of: receiving, by a relay node device having a relay network address, a message originated from a source node device having a source network address and destined to a destination node device having a destination network address; determining, by the relay node device, to relay the received message, based on a relationship between the relay network address, the source network address and the destination network address, and relaying, by the relay node device, the message by retransmitting the received message.
H04W 40/22 - Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
H04W 40/20 - Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location
11.
A CONTROLLER FOR UNLEARNING A LEARNT PREFERENCE FOR A LIGHTING SYSTEM AND A METHOD THEREOF
A method for unlearning a learnt preference for a lighting system, wherein the method comprises: monitoring one or more feedbacks of a user during a time period, determining whether the one or more feedbacks are related to a light setting of the lighting system or not, assigning a likelihood value to the one or more feedbacks based on the determination, training the machine to learn the user's preference related to the light setting based on the monitored one or more feedbacks, rendering an inferred light setting from the trained machine, receiving a dissatisfaction input from the user indicative of a dissatisfaction level of the user related to the inferred light setting, and if the user's dissatisfaction level exceeds a threshold, removing the one or more feedbacks from the trained machine based on the likelihood value.
A lighting control system (1) comprising at least one lighting module (2) and a controller (3), the controller (3) being configured to cause the at least one lighting module to create a lighting scene for a lighting calendar event, the controller (3) further being configured to obtain first data by data mining social media content relating to the lighting calendar event, determine first lighting attributes from the first data, based on the first lighting attributes, control the at least one lighting module to generate at least one lighting scene and apply the at least one lighting scene for the lighting calendar event, obtain second data by data mining social media content relating to the applied at least one lighting scene, determine second lighting attributes from the second data, and based on the second lighting attributes control the at least one lighting module to generate at least one updated lighting scene and apply the at least one updated lighting scene for the lighting calendar event.
A system (11) is configured to receive a video signal comprising video content, output the video signal to a display device (46) for displaying the video content, and receive a further signal. The further signal is indicative of one or more commands transmitted by a further device (45, 29) to the display device. The system is further configured to determine, based on the further signal, whether the display device will likely display an overlay on top of the video content, determine one or more light effects based on the analysis of the video content in dependence on whether the display device will likely display an overlay on top of the video content, and control one or more lighting devices (31-34) to render the one or more light effects.
G09G 5/377 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of individual graphic patterns using a bit-mapped memory - Details of the operation on graphic patterns for mixing or overlaying two or more graphic patterns
H05B 47/155 - Coordinated control of two or more light sources
A light emitting device comprising a mixing chamber (3). The mixing chamber having a bottom surface (31), a light exit window (33) and at least one side wall (32). The at least one side wall extends between the bottom surface and the light exit window. The light emitting device further comprises at least one light source (4) adapted for, in operation, emitting light into the mixing chamber. The at least one side wall (32) comprises an inner surface part (34) that borders the light exit window (33) and that faces an internal space (8) of the mixing chamber. The inner surface part (34) is an asymmetric reflector (9) to reflect a larger amount of incident light back towards the bottom surface (31) than towards the light exit window (33).
F21K 9/62 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using mixing chambers, e.g. housings with reflective walls
A transformer comprises a winding structure which forms a primary side coil, a secondary side coil and first and second wires wound into the coil structure of the transformer. The first wire and second wire define a capacitance between them. The first wire is coupled to a cold point in the primary side and the second wire is coupled to a cold point in the secondary side, thereby this capacitance forming a Y-capacitor between the primary and the secondary sides. This capacitance may for example be used for EMI suppression.
The present invention relates to performing radio frequency based sensing in multiple sensing areas (50, 60) by multiple nodes (26, 28, 30, 38, 40, 42) located at different locations. A first group (25) of nodes includes at least two of the multiple nodes (26, 28, 30) and performs radio frequency based sensing in a first sensing area (50) for detecting a first sensing event. A second group (25′) of nodes including at least two of the multiple nodes (38, 40, 42) is configured for performing radio frequency based sensing in a second sensing area (60) for detecting a second sensing event based on findings obtained by performing radio frequency based sensing in the first sensing area (50). The nodes (26, 28, 30, 38, 40, 42) may perform radio frequency based sensing based on multiple communication technologies (34). The findings may include which communication technology allows confidently detecting a sensing event.
G01S 13/04 - Systems determining presence of a target
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 13/48 - Indirect determination of position data using multiple beams at emission or reception
A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting light (7, 9), at least one free-shape refractive lens element (3) configured to aim light (7) emitted by the at least one light source (2) in a first direction towards a surface (22) to be illuminated by the light emitting device (1), the lens element (3) comprising a first end (11) adapted for facing in a direction towards the surface (22) and a second end (20) adapted for facing in a direction away from the surface (22), at least one first TIR element (4), the first TIR element (4) being a collimating TIR element configured to collimate and redirect light (9) emitted from the at least one light source (2) in a second direction away from the surface (22) into light (9) propagating parallel and in a downward direction, the first TIR element (4) comprising a light incoupling surface (19) and a light outcoupling surface (13), the light incoupling surface (19) being arranged at the second end (20) of the lens element (3), and at least one second TIR element (5) configured to redirect light (9′) redirected by the first TIR element (4) into light (9″) propagating in a direction towards the surface (22) and comprising an intensity distribution with two intensity peaks at wide angles that are aligned with the intensity peaks of light (7′) aimed by the lens element (3), the at least one second TIR element (5) being arranged at the light outcoupling surface (13) of the first TIR element (4).
A method of processing an interference detected by a first microwave sensor is disclosed. The method comprising the steps of: receiving, by a second microwave sensor, from the first microwave sensor a message comprising a signal feature profile representing the interference detected by the first microwave sensor; matching, by the second microwave sensor, the signal feature profile comprised in the received message with a stored feature profile, the stored feature profile obtained by the second microwave sensor from its own received signal, and determining, by the second microwave sensor, that the interference detected by the first microwave sensor is caused by the second microwave sensor, if the signal feature profile matches the stored feature profile.
G01S 7/02 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
G01S 7/35 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of non-pulse systems
G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar
20.
A LIGHT EMITTING SYSTEM FOR DISINFECTING A TARGET AREA
A light emitting system (1) for disinfecting a target area (5), the light emitting system (1) comprising a first light emitting device (2) comprising a first light source (21) configured to, in operation, emit a first UV light beam (22) towards the target area (5), and a second light emitting device (3) comprising a second light source (31) configured to, in operation, emit a second UV light beam (32) towards the target area (5), the first light emitting device (2) and the second light emitting device (3) being arranged spaced apart from one another in a direction perpendicular to vertical, and the first light source (21) and the second light source (31) being arranged such that, in operation, the first UV light beam (22) and the second UV light beam (32) are emitted in such respective directions that the first UV light beam and the second UV light beam form an exposure overlap at the target area.
An outdoor luminaire controller for mounting on an external face of an outdoor luminaire, comprising: a housing (10) having (14) mounted at the base (12) for passing a cable (16) from the interior volume of the housing (10) through the base (12) to the outside of the housing beneath the base, and for connecting the luminaire controller to the external face, wherein the cable routing unit (14) has an adjustable configuration relative to the base (12) of the housing thereby to adjust the location from which the cable extends down from the base (12).
A method (100) for disinfection using a lighting system (200), comprising: •determining (140) a mid-infrared (IR) and/or far-IR wavelength configured to disrupt a target macromolecule of a target pathogen, wherein the target macromolecule is DNA, RNA, and/or •a protein of the target pathogen; and exposing (150), via a light source (210) of the lighting system (200), •exposing (150), via a light source of the lighting system (200), the target pathogen to the determined mid-IR and/or far-IR wavelength, wherein the target macromolecule is directly disrupted and the target pathogen is neutralized by the exposure; and •detecting (160), by a sensor (224) of the lighting system (200), neutralisation of the target pathogen by exposure.
A system is disclosed for protecting fish from parasite infection. The system comprises a fish guidance system for deterring fish from moving into a first region bordering a water surface and/or for can move from the second region into the first region so that they can reach the water surface bordering the first region. The system further comprises a radiation disinfection system that is configured to provide disinfection radiation to the first region, the disinfection radiation being configured to disinfect water from parasites.
A lighting circuit has a series connection of a plurality of lighting channels of different output colors, driven by a current source. Some or all of the lighting channels comprise a LED arrangement, a shunt switch in parallel with the LED arrangement and a current leakage path in parallel with the LED arrangement. The current leakage path is used to calibrate the current flowing through the LED arrangement and thereby take account of the LED characteristics.
H05B 45/48 - Circuit arrangements for operating light-emitting diodes [LED] - Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
The invention provides a light generating device (100) comprising (i) n filaments (200), (ii) an power distribution unit (400), and (iii) electronics (500); wherein: (a) each of the n filaments (200) comprises one or more solid state light sources (10), wherein n≥1, wherein each of the n filaments (200) comprises at least m electrical contacts (221), wherein m≥2; and wherein the n filaments (200) are configured to generate filament light (201); (b) the power distribution unit (400) comprises k electrically conductive tracks (410) separated by electrically insulating material (420), wherein k≥2; (c) at least two of the electrical contacts (221) of the n filaments (200) are functionally coupled to at least two different electrically conductive tracks (410); (d) the at least two different electrically conductive tracks (410) are functionally coupled to the electronics (500); and (e) the electronics (500) comprise one or more of a control system, a driver, and a transformer.
A control system for configuring a plurality of lighting devices is disclosed. The control system comprises a communication unit configured to wirelessly communicate with a plurality of lighting devices, a configuration module configured to: for each lighting device of the plurality of lighting devices, group different segments of the plurality of individually controllable segments into different lighting control groups, and communicate, via one or more communication units, grouping information to each respective lighting device to cause the respective lighting device to store the respective grouping information in its memory, the grouping information being indicative of the respective lighting control groups into which the different segments have been grouped, and a control module configured to: communicate, via the one or more communication units, a broadcast command to the plurality of lighting devices, the broadcast command defining respective light settings for the respective lighting control groups.
The invention provides a luminescent arrangement (2000) comprising an array (2005) of luminescent bodies (2100), and a matrix (2210) at least partly configured between the luminescent bodies (2100), wherein the luminescent bodies (2100) comprise a first luminescent material (2110), wherein the matrix (2210) comprise a light transmissive material (2215), wherein the light transmissive material (2215) comprises a second luminescent material (2220), wherein the first luminescent material (2110) and the light transmissive material (2215) are different materials; and wherein the luminescent bodies (2100) comprise ceramic bodies.
F21V 9/32 - Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
F21V 9/40 - Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
An enclosure can include a first and second enclosure component, where the first enclosure component can include a first enclosure component side and a snap-fit fastener that extends from the first enclosure component side, where the snap-fit fastener comprises a body with an aperture that traverses therethrough. The second enclosure component can include a second enclosure component side and a ridge that protrudes from the second enclosure component side to form a cavity, where the ridge has a plurality of gaps along its top end. The second enclosure component can also include a catch that protrudes from the second enclosure component side, where the catch is positioned within the inner perimeter of the ridge, and where the catch is configured to be positioned within the aperture formed by the snap-fit fastener and abut against the snap-fit fastener when the snap-fit fastener is disposed within the cavity formed by the ridge.
The invention provides a light generating system (1000) comprising a solid state light source (100), a luminescent material element (210), a sensor element (400), and an electrical circuit (500), wherein: (a) the solid state light source (100) is configured to generate light source light (101), wherein the solid state light source (100) is functionally coupled to the electrical circuit (500); (b) the luminescent material element (210) comprises a luminescent material (200), wherein the luminescent material element (210) is configured in a light receiving relationship with the solid state light source (100), and wherein the luminescent material (200) is configured to convert at least part of the light source light (101) into luminescent material light (201); and (c) the sensor element (400) comprises a sensor component (410), wherein the sensor element (400) is comprised by the electrical circuit (500), wherein the sensor component (410) comprises a photo-resistor, wherein the photo-resistor has a variable resistance dependent on an extend of exposure to a light (11) selected from the group consisting of the laser light (100) and the luminescent material light (201).
A system (100) for analyzing mating behavior of an animal species, comprising: an image-capturing device (110) configured to capture a plurality of time-successive image frames, and a processor (120), wherein the system is configured to detect and track at least one male (130) and female (140) of an animal species, register a motion pattern (150) of at least one of the tracked male and the tracked female, compare the registered motion pattern with a predetermined motion pattern (160), determine the likelihood of an action associated with a mating behavior between the tracked male and the tracked female, and, based on the determined likelihood, capture, via the image-capturing device, a set of time-successive image frames, wherein each image frame set of time-successive frame comprises at least one of the tracked male and the tracked female, and register the motion pattern as a function of the captured set of time-successive image frames.
A method and a control system 100 for controlling a plurality of lighting units 112, 114 are disclosed. The control system 100 comprises a communication unit 104 configured to communicate with the plurality of lighting units 112, 114, a user interface 102 configured to receive a first user input indicative of a selection of one or more colors for the plurality of lighting units 112, 114, a processor 106 configured to control the plurality of lighting units 112, 114 via the communication unit 104 according to the selected one or more colors, wherein the user interface 102 is configured to receive a second user input indicative of a selection of a value within a range of values, and wherein the processor 106 is configured to obtain a color palette associated with the selected one or more colors, to determine a color spread of colors of the color palette as a function of the value within the range of values, and to control the plurality of lighting units 112, 114 via the communication unit 104 according to a plurality of colors of the color spread.
The present invention relates to a method for joining at least two flexible foils (10a-b). The method comprises the steps of (i) providing a first flexible foil (10a) having a first row (12) of light emitting diodes (14) and a first set of electrically conductive tracks (16) for supplying current to the first row (12) of light emitting diodes (14), (ii) providing a second flexible foil (10b) having a second row (12) of light emitting diodes (14) and a second set of electrically conductive tracks (16) for supplying current to the second row (12) of light emitting diodes (14), and (iii) joining the first flexible foil (10a) and the second flexible foil (10b) at an overlap (22) of the first flexible foil (10a) and the second flexible foil (10b), wherein a metal strip or wire (24; 24′) gets embedded between the first flexible foil (10a) and the second flexible foil (10b) at the overlap, and wherein the metal strip or wire (24; 24′) electrically connects to the first and second sets of electrically conductive tracks (16).
F21S 8/04 - Lighting devices intended for fixed installation intended only for mounting on a ceiling or like overhead structure
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
34.
LIGHTGUIDE BASED LUMINAIRE FOR DISINFECTION AND ILLUMINATION
The invention provides a light generating system (1000) configured to provide system light (1001), wherein the light generating system (1000) comprises (i) a first light generating device (110), (ii) a second light generating device (120), and (iii) a waveguide (400), wherein:—the waveguide (400) has a first face (401), a second face (402), and a side face (403) bridging the first face (401) and the second face (402);—the first light generating device (110) is configured to generate first device light (111), wherein in an operational mode the first device light (111) has a color point in the visible; the first light generating device (110) is configured to irradiate the side face (403), wherein in an operational mode at least part of the first device light (111) escapes from the waveguide (400) via the first face (401); and—the second light generating device (120) is configured to generate second device light (121), wherein in an operational mode the second device light (121) has a centroid wavelength of at maximum 420 nm, and has a spectral power distribution differing from a spectral power distribution of the first device light (111); the second light generating device (120) is configured upstream of the second face (402); wherein in an operational mode at least part of the second device light (121) is transmitted through the waveguide (400) and escapes from the waveguide (400) via the first face (401).
A method of controlling a lighting unit in an area is disclosed. The method comprises: obtaining a charging status of a portable device, the charging status indicating whether the portable device is connected to a charger, receive a motion signal indicative of a motion of a user in the area, controlling, if the motion has been detected and if the portable device is connected to the charger, the lighting unit according to a first light setting, and controlling, if the motion has been detected and if the portable device is not connected to the charger, the lighting unit according to a second light setting.
A lighting arrangement (100), comprising a first solid state light source (110) arranged to emit visible light, a second solid state light source (130) arranged to emit second light of at least one of violet light and ultraviolet (UV) light, a reflector (140) comprising at least one light-reflecting surface (145), wherein the reflector at least partially encloses the first and second solid state light sources, and wherein at least part of the reflector defines a mixing chamber (150) for mixing the visible light and the second light, a light exit window (160), wherein the visible light and the second light mixed by the mixing chamber are arranged to exit the lighting arrangement through the light exit window, and a third solid state light source (170) arranged to emit UV light, wherein the third solid state light source is arranged outside the mixing chamber.
A lighting device (1) is disclosed comprising a transmissive housing (3) and a filament (10) within said transmissive housing. The filament comprises a transmissive substrate (20) carrying a plurality of solid state lighting elements (30) and a phosphor containing resin coating (40) enveloping said filament. The resin coating includes at least one region (42) leaking light produced by said solid state lighting elements that is unconverted by said phosphor and the transmissive housing carries a further phosphor layer (7) covering part of the transmissive housing for each of said regions of the resin coating, each of said further phosphor layers being arranged to receive said unconverted light leaking from at least one of said regions. Also disclosed is a method of manufacturing such a lighting device.
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
F21K 9/235 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings - Details of bases or caps, i.e. the parts that connect the light source to a fitting; Arrangement of components within bases or caps
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
The invention refers to a system for controlling a radiofrequency sensing of a network 100. The network is adapted to perform different radiofrequency sensing modes, e.g. RSSI-, CSSI- or Doppler based modes. The system 130 comprises a providing unit 131 for providing environmental information, wherein the environmental information is indicative of a physical property of one or more surfaces in an environment of the network. A selecting unit 132 is adapted for selecting and/or modifying a radiofrequency sensing mode to be performed by the network, wherein the radiofrequency sensing mode is selected and/or modified based on the environmental information, and a controlling unit 133 is adapted for controlling the network 100 to perform the selected and/or modified sensing mode Taking the physical properties of surfaces in an environment into account and modifying and/or selecting the utilized radiofrequency sensing mode accordingly increases the reliability and the accuracy of the radiofrequency sensing.
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
G01S 7/00 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , ,
G01S 13/86 - Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar
41.
RGB ARCHITECTURE FOR COLOR CONTROLLABLE LED FILAMENT
The invention provides a LED filament device (1000) configured to generate LED filament device light (1001), wherein the LED filament device (1000) comprises a LED filament (1100), wherein the LED filament (1100) comprises a plurality of light generating devices (100), each comprising a solid state light source (10), wherein the plurality of light generating devices (100) comprises a first set of n1 first light generating devices (110) configured to generate red first device light (111), a second set of n2 second light generating devices (120) configured to generate blue second device light (121), and a third set of n3 third light generating devices (130) configured to generate green third device light (131), wherein at least part of a total number n2 of the second light generating devices (120) of the second set are configured neighboring to first light generating devices (110) of the first set, wherein at least part of a total number n3 of the third light generating devices (130) of the third set are configured neighboring to first light generating devices (110) of the first set, wherein a total number n1 of the first light generating devices (110) is larger than the total number n2 of second light generating devices (120), wherein the total number n1 of the first light generating devices (110) is larger than a total number n3 of third light generating devices (130), wherein in a first operational mode the LED filament device (1000) is configured to generate filament device light (1001) having a correlated color temperature of at maximum 2500 K, wherein the filament device light (1001) comprises the red first device light (111) of the first set of n1 first light generating devices (110), the blue second device light (121) of the second set of n2 second light generating devices (120), and the green third device light (131) of the third set of n3 third light generating devices (130).
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
The present invention relates to a lighting device (1) comprising a luminous panel (2) comprising a light-emitting surface (3), a cover surface (4) arranged at a distance from the light-emitting surface (3), and at least one lateral surface (5) connecting the light-emitting surface (3) and the cover surface (4). The lighting device (1) further comprises a power track (6) being integrated in the luminous panel (2).
F21S 8/00 - Lighting devices intended for fixed installation
F21V 21/35 - Supporting elements displaceable along a guiding element with direct electrical contact between the supporting element and electric conductors running along the guiding element
43.
SYSTEM FOR CONTROLLING A SOUND-BASED SENSING FOR SUBJECTS IN A SPACE
The present invention refers to a system (110) for controlling a sound-based sensing of subjects (120) in a space, wherein the sensing is performed by a network (100) of network devices (102,103,104) distributed in the space. At least one network device comprises a generating unit and a plurality of network devices located differently from the generating unit comprising a detecting unit. The system comprises a controlling unit (111) for controlling the at least one generating unit to generate a predetermined sound and the plurality of detecting units to detect the sound after a multi-channel propagation through at least a portion of the space and to generate a sensing signal indicative of the detected sound, and a determination unit (113) for determining a status and/or position of at least one subject in the space based on the plurality of sensing signals.
In accordance with example systems and methods, an equipment can be operable to emit, using a light emitting device (e.g., an LED), coded light. The coded light can be captured by a camera in the form of image data. The image data can be processed and to data related to the equipment, such as a hardware information, version of software associated with the equipment, status, settings, and other equipment data.
In accordance with example systems and methods, a data processing device can analyze the thermal images captured from an overhead thermal sensor to determine which of the thermal images exhibit a thermal pattern consistent with that of a human. The data processing device can determine a posture that is indicative of whether a person associated with the thermal image is sitting or standing, and can determine a directionality of the person based on the posture and an axis of a defined ellipse corresponding to the thermal image.
G06V 40/10 - Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
G06T 7/70 - Determining position or orientation of objects or cameras
G06V 10/14 - Optical characteristics of the device performing the acquisition or on the illumination arrangements
G06V 10/22 - Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
G06V 10/26 - Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
G06V 10/762 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using clustering, e.g. of similar faces in social networks
46.
OPTIMIZING DETECTION PERFORMANCE OF RADIO FREQUENCY BASED SENSING
The present invention relates to a radio frequency (RF) system with multiple nodes (34, 36, 38, 44, 46, 48) and a method for optimizing detection performance for performing RF-based sensing in a sensing area (32) based on RF system configuration parameters. An RF system configuration parameter of the RF system configuration parameters which affects detection performance of the RF-based sensing the most is determined. The RF system configuration parameter which affects detection performance of the RF-based sensing the most is then adjusted in order to optimize the detection performance of RF-based sensing. A root cause for a diminished detection performance and the respective RF system configuration parameter for mitigating it may be determined based on current context. For optimizing the detection performance, for example, settings of sensing parameters of the nodes (34, . . . , 48) may be adjusted or the nodes (34, . . . , 38) may be moved, removed, added, or replaced.
The present invention relates to a shelf (10) for a UV-C disinfection chamber (12) comprising at least one UV-C light source (24) adapted to emit UV-C radiation (22) inside the UV-C disinfection chamber, the shelf comprising: a metal mesh shelf plate (14); and at least one optical element (26), wherein each optical element of the at least one optical element is adapted to locally modify the UV-C radiation relative to an object (28) supported by the shelf in conjunction with the optical element when the shelf is placed inside the UV-C disinfection chamber.
An augmented reality-based lighting design method includes displaying, by an augmented reality device, a real-time image of a target physical area on a display screen. The method further includes displaying, by the augmented reality device, a lighting fixture 3-D model on the display screen in response to a user input, where the lighting fixture 3-D model is overlaid on the real-time image of the target physical area. The method also includes displaying, by the augmented reality device, a lighting pattern on the display screen overlaid on the real-time image of the target physical area, wherein the lighting pattern is generated based on at least photometric data associated with the lighting fixture 3-D model.
H04L 41/22 - Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks comprising specially adapted graphical user interfaces [GUI]
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
H05B 47/175 - Controlling the light source by remote control
According to one aspect disclosed herein, there is provided a client device for use in an optical wireless communications network, the client device comprising a transceiver configured to receive data via an optical wireless connection. The transceiver comprises an upward facing optical transducer configured to detect or transmit an optical wireless transmission, the sensor arranged to have a coverage area with at least two 5 concentric segments. A portion of the sensor is configured to provide an outermost segment of the at least two concentric segments.
A system (1) for causing at least one of a plurality of lighting devices (31-35) to render light effects specified in a light script is configured to determine for each respective light effect of the light effects an allocation of the respective light effect to one or more first lighting devices (31-33) of the plurality of lighting devices, select, from the plurality of lighting devices, a second lighting device (34) to which none of the light effects has been allocated, and transmit a request to the second lighting device. The request requests the second lighting device to control the one or more first lighting devices to render the light effects and defines light effects for the one or more first lighting devices as specified in the light script.
The invention relates to a retractable lighting fixture, comprising an elongated drum rotatable over a length axis; and a flexible multilayer lighting sheet movable between a retracted position and a protracted position, with the multilayer lighting sheet in the retracted position being at least partially retracted in one or more windings around the drum and with the multilayer lighting sheet in the protracted position being fully unwound from the drum; the multilayer lighting sheet being composed of at least one LED layer and at least one diffusing optical layer, the at least one LED layer having a first LED layer edge mounted at a first mounting position of the drum and the at least one diffusing optical layer having a first optical layer edge mounted at a second mounting position of the drum, the first mounting position being located at an arc length from the second mounting position.
G09F 13/04 - Signs, boards, or panels, illuminated from behind the insignia
G09F 11/08 - Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being secured to rotating members, e.g. drums, spindles the elements being flexible sheets
A light emitting diode, LED, filament lamp (100), comprising at least one LED filament (120, 120a, 120b) having abase portion (210) and a top portion (22) extending over a length, L, along a longitudinal axis, A, wherein the LED filament comprises an array of a plurality of light emitting diodes, LEDs, (140) extending along the longitudinal axis A. An encapsulant (145) at least partially enclosing the plurality of LEDs, wherein the encapsulant comprises a luminescent material (150). The linear array of LEDs (140) comprising a plurality N of blue LEDs (106) emitting blue light and a plurality of M red LEDs (107) emitting red light, the linear array of LEDs (140) comprising a density of blue LEDs and a density of red LEDs, The density of blue LEDs decreases and/or the density of red LEDs increases from the base portion (210) to the top portion (220) along at least a portion of the length (L), whereby the color temperature, CTL, of the light emitted from the at least one LED filament decreases from the base portion (210) to the top portion (220) over at least a portion of the length of the at least one LED filament.
F21S 10/04 - Lighting devices or systems producing a varying lighting effect simulating flames
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
A light emitting diode, LED, filament arrangement (100, 400, 510), comprising an elongated LED filament (150) comprising an array of a plurality of light emitting diodes (110, 410), LEDs, and a carrier (240) arranged to support the plurality of LEDs. The LED filament arrangement further comprises a heat sink (250), wherein the LED filament is arranged upon the heat sink. The LED filament comprises a center axis, A, and elongates in a meandering shape in a first plane, P, wherein at least one of the LED filament and the heat sink is convex-shaped with respect to the center axis, A, along at least a first segment (120, 320) of the LED filament, and at least one of the LED filament and the heat sink is concave-shaped with respect to the center axis, A, along at least a second segment (130, 330) of the LED filament.
A light fixture (100) includes a carriage (104), a hood (102) rotatably attached to the carriage (104), and a light engine (150, 900, 1108) that includes a plate (110, 902) and a light module (112, 926). The light module (112, 926) is attached to the plate (110, 902), and the plate (110, 902) is rotatably attached to the carriage (104).
F21S 8/08 - Lighting devices intended for fixed installation with a standard
F21V 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
F21V 19/00 - Fastening of light sources or lamp holders
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
56.
A DISINFECTION SYSTEM COMPRISING AN OPTICAL ARRANGEMENT FOR A FAR UV LIGHT SOURCE TO FILTER OUT UNDESIRED WAVELENGTHS
The invention provides a radiation generating system comprising a radiation unit, wherein the radiation unit comprises a light source, a first collimator, and an optical arrangement, wherein: (a) the light source is configured to generate light source radiation having a first spectral power distribution having an intensity I1,1 at a first wavelength λ1 and an intensity I1,2 at a second wavelength λ2; (b) the first collimator is configured in a light receiving relationship with the light source, wherein the first collimator is configured to collimate the light source radiation into collimated light source radiation; (c) the optical arrangement is configured downstream of the first collimator and is configured to convert the collimated light source radiation into arrangement radiation; wherein the arrangement radiation is collimated relative to the collimated light source radiation; wherein the optical arrangement comprises a second collimator and an optical filter, wherein: (i) the second collimator is configured downstream or upstream of the optical filter; (ii) the optical filter has a higher transmission for the first wavelength λ1 than for the second wavelength λ2 when irradiated under a predefined angle; (iii) the first wavelength λ1 is selected from the range of 190-230 nm and the second wavelength λ2 is selected from the range of 100-190 nm or 230-280 nm; and (iv) the second collimator is at least partly defined by a plurality of light radiation transmissive channels, wherein the radiation transmissive channels are defined by channel walls which comprise a light absorbing material, wherein the light absorbing material is configured to absorb at least part of the collimated light source radiation received by the light absorbing material.
In an optical wireless communication, OWC, network (100), time division multiple access, TDMA, is commonly used for interference suppression among multiple network devices (D1-Dn) associated to a single coordinator, or among adjacent coordinators (C1-Cn). However, an offset of MAC cycles among two adjacent coordinators (C1-C2) may still result in interference to a network device (D1) located in the overlapping area of the coverage areas of these two adjacent coordinators (C1-Cn). This invention is directed to various methods, apparatus, systems, computer program and computer-readable media for providing a mechanism to make use of an out-of-band channel to send a signal from a network device (D1) to the two adjacent coordinators (C1-C2), for assisting the alignment of MAC cycles among the two adjacent coordinators (C1-C2), and the out-of-band channel has a line-of-sight character, and is out-of-band as compared to the OWC network (100).
A system (1) for controlling a lighting device (11-12) to render adjusted light effects in relation to audio and/or video content while a media rendering device (23) renders this content is configured to receive one or more input signals, determine light effects based on the input signals, identify one or more settings which have not been adjusted by a user of the system in relation to the audio and/or video content, and determine one or more values for the settings based on the input signals. The values are based on adjustments made by one or more users of one or more other systems (48,49) to the settings in relation to the audio and/or video content. The system is further configured to adjust the light effects based on the values and control the lighting device to render the adjusted light effects.
H05B 47/12 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by detecting audible sound
H04N 21/43 - Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
H04N 21/439 - Processing of audio elementary streams
The present invention relates to performing radio frequency based sensing based on channel state information (CSI), received signal strength indicator (RSSI), or a combination thereof based on a current context. A current context for performing radio frequency based sensing is determined and at least one of two nodes (26, 28, 30) of a radio frequency system (100) is configured for performing radio frequency based sensing based on CSI, RSSI, or a combination thereof based on the current context. The current context may be determined in real time. This may allow improving detection performance and/or reducing energy consumption in real time.
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
The invention refers to an apparatus (140) for controlling a lighting system (100) comprising a plurality of lights (110, 120, 130), wherein the lighting system is adapted to perform a hidden sensing, like radiofrequency sensing, in a sensing region (150). The apparatus comprises a sensing activity information providing unit (141) adapted to provide sensing activity information indicative of a hidden sensing activity of the lighting system (100), a notification mode selection unit (142) adapted to select a notification mode for notifying a person of the hidden sensing activity, wherein the selection is based on the provided sensing activity information and wherein each notification mode refers to a visual feedback, and a lighting system controlling unit (143) adapted to control at least two lights of the lighting system based on the selected notification mode to provide the visual feedback. The invention allows to notify a user of a hidden sensing.
A method comprises, in a learning mode, learning (101) a state of one or more portable devices at a start time associated with a routine for a plurality of executions of the routine over a period of time based on received signals and determining (103) one or more expected states of the one or more portable devices at the start time associated with the routine based on the learned state. The method further comprises, in an adjustment mode, determining (105) a current state of the one or more portable devices at the start time of the routine for a current execution of the routine, determining (107) whether the current state differs from the expected state, and adjusting (109) the current execution of the routine in dependence on a difference between these states. The current execution of the routine comprises transmission of at least one light command.
The invention provides a LED filament device (1000) comprising an elongated LED filament unit (1100), wherein the elongated LED filament unit (1100) is configured to generate filament unit light (1101); wherein: —the elongated LED filament unit (1100) comprises n1 sets (1150) of LED filaments (400), wherein the n1 sets (1150) of LED filaments (400) are electrically coupled, wherein the n1 sets (1150) of LED filaments (400) are configured in a linear array, wherein n1≥2; wherein each set (1150) of LED filaments (400) comprises at least two electrically antiparallel configured LED filaments (400); —the LED filaments (400) are configured to generate filament light (401); wherein each LED filament (400) comprises n2 solid state-based light generating devices (100), wherein the solid state-based light generating devices (100) are electrically coupled, wherein the solid state-based light generating devices (100) are configured to generate device light (101); wherein n2 for the LED filaments (400) are selected from the range of ≥4; and—one or more of the coupled solid state-based light generating devices (100) are at least partly encapsulated with an encapsulant (160) comprising a light transmissive material.
F21S 4/24 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of ribbon or tape form, e.g. LED tapes
F21V 21/08 - Devices for easy attachment to a desired place
F21V 9/30 - Elements containing photoluminescent material distinct from or spaced from the light source
The invention is directed to a fall-classification device (100) with a receiver unit (102) configured to receive wireless communication signals (W) from wireless transmitters (101, 103) and a subject-activity data determination unit (106) configured to determine and provide, using signal-quality values determined by a quality signal determination unit, respective subject-activity data indicative of at least two subject-activity metrics of a subject (S) within a sensing volume (V1). A fall-event detection unit (108) is configured to determine, based on a time variation of the subject-activity data of at least one subject-activity metric, whether a fall-event has occurred. A fall-event type classification unit (110) is configured, using a predetermined algorithm and subject-activity data of at least two subject-activity metrics determined during a first time span before and a second time span after the determination of the fall-event, to determine a fall type, from a predetermined list of fall types, with increased accuracy.
A system (31) for determining at least one control parameter for at least one device (41) controlling an environmental condition in a plain growing environment is configured to obtain one or more target values for the environmental condition and receive information relating to control of a further environmental condition in the plant growing environment, e.g. from another system (1). The system is further configured to determine data which represent an anticipated influence of the control of the further environmental condition on the environmental condition from the information and determine the at least one control parameter for the at least one device controlling the environmental condition based on the one or more target values and the data. The system is also configured to output or store the at least one control parameter.
An emergency power system (100) and emergency lighting dimming method are disclosed. The emergency power system (100) includes a power source (10), a phase-cut waveform generator (11, 13, 300, 310, 311, 400, 410, 411) coupled to the output of the power source (10) and arranged to provide a phase-cut waveform (FIGS. 2 and 3) to a load (12). The load may be one or more emergency lighting devices. A feedback detection module (14, 201) may be is used to monitor the voltage and/or current data supplied to the load (12) by the phase-cut waveform generator. A controller (13, 202-205) controls the phase-cur waveform generator (11, 13, 300, 310, 311, 400, 410, 411) to adjust the power level of the load (12) by modifying the phase-cur waveform based upon the monitored voltage and/or current data and reference data to achieve the appropriate dimming level.
A light-emitting module (100) is disclosed, the light-emitting module comprising a first light-emitting diode, LED, array (104) arranged on a substrate (102). The first LED array has a first perimeter (106) and comprises a plurality of first LEDs (108) configured to emit first light. The light-emitting module further comprises a second LED array (110) arranged on the substrate. The second LED array has a second perimeter (112), smaller than the first perimeter and comprises a plurality of second LEDs (114) configured to emit second light. The second LED array is arranged off-center within the first LED array. Further, the light-emitting module comprises a controller (116) configured to individually control the first LED array and the second LED array.
F21K 9/62 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using mixing chambers, e.g. housings with reflective walls
67.
A NETWORK CONTROLLING DEVICE FOR CONTROLLING A NETWORK PERFORMING RADIOFREQUENCY SENSING
The invention refers to a device for controlling a network (100) comprising sensing areas (110, 120). The device (130) comprises a) a providing unit (131) for providing a sensing result of radiofrequency sensing in the sensing areas, b) a determination unit (132) for determining whether a detection result is potentially unreliable in a spatial region, and c) a defining unit (133) for defining a new sensing area (150) corresponding to a part of the spatial region in which the detection result is potentially unreliable. The providing unit (131) is adapted to provide a new sensing result in the new sensing area, and the detection result is determined for at least the part of the spatial region for which a potentially unreliable detection result is determined based on a sensing result and the new sensing result. Thus, the invention provides a device that allows to improve the sensing reliability of radiofrequency.
A system is configured to display a visual representation (41) of a color space and repositionable virtual representations (51-55) of individually addressable light segments overlaid on the visual representation of the color space. The light segments have a fixed spatial relationship in an array and the virtual representations have initial positions (71). The system is further configured to receive user input indicative of a change of one or more of the initial positions of the virtual representations and determine further positions (72) for the virtual representations based on the initial positions and the indicated change of the one or more of the initial positions. The initial and further positions are in order of the fixed spatial relationship. The system is further configured to determine light settings for the light segments based on the further positions and control the array of individually addressable light segments to render the light settings.
The invention provides a light generating system (1000), comprising (i) one or more pump light sources (100), (ii) a first luminescent material (210), (iii) a second luminescent material (220), and (iv) optics (400), wherein: (A) the one or more pump light sources (100) are configured to generate pump light source light (101); (B) the first luminescent material (210) is configured to convert at least part of the pump light source light (101) into first luminescent material light (211) having a first spectral power distribution; the second luminescent material (220) is configured to convert at least part of the pump light source light (101) into second luminescent material light (221) having a second spectral power distribution, different from the first spectral power distribution; and wherein the spectral power distribution of one of the first luminescent material light (211) and the second luminescent material light (221) overlaps with 5-50% of the spectral power distribution of the other; (C) the optics (400) comprise a first wavelength dependent optics (410) and a second wavelength dependent optics (420); wherein the first wavelength dependent optics (410) is configured downstream of the first luminescent material (210), and configured to spectrally separate the first luminescent material light (211) into a first part (1211) of the first luminescent material light (211) and a second part (2211) of the first luminescent material light (211) into two directions; (D) the second wavelength dependent optics (420) is configured downstream of (i) the first wavelength dependent optics (410) and (ii) the second luminescent material (220); and wherein the second wavelength dependent optics (420) is configured to spectrally combine the first part (1211) of the first luminescent material light (211), the second part (2211) of the first luminescent material light (211), and the second luminescent material light (221); and (E) the light generating system (1000) is configured to generate system light (1001) comprising one or more of the pump light source light (101), the first luminescent material light (211), and the second luminescent material light (221).
H01Q 3/02 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
A method (200) for making a lighting device is provided. The lighting device comprises a carrier having a side on which lighting elements are to be mounted in a selected arrangement in relation to each other using the surface-mount equipment. The method comprises marking (201) on the side of the carrier, using a marking substance comprising an ink composition, indications of the positions on the side of the carrier where the lighting elements are to be placed in order for the lighting elements to become mounted on the side of the carrier according to the selected arrangement of the lighting elements in relation to each other, wherein at least one of the surface-mount equipment or the marking substance is arranged such that the marking substance is detectable by the surface-mount equipment. Using the surface-mount equipment and based on the indications marked on the side of the carrier, the lighting elements are placed (204) on the side of the carrier so that the lighting elements become mounted on the side of the carrier in accordance with the selected arrangement of the lighting elements in relation to each other.
H05K 1/09 - Use of materials for the metallic pattern
H05K 3/34 - Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
The present invention relates to a luminaire (100) emitting ultraviolet radiation. The luminaire (100) comprises (i) an ultraviolet radiation source (110) having a field of irradiation, (ii) an optical sensor (120) having a field of view, the optical sensor (120) being configured to detect motion or presence of an object in the field of view and to output a signal indicative of detected motion or presence of the object is detected, (iii) a control unit 5(130) configured to control the ultraviolet radiation source (110) based on the signal from the optical sensor (120), the control unit (130) being connected to the ultraviolet radiation source (100) and being configured to switch off the ultraviolet radiation source (110) upon receipt of the signal indicative of detected motion or presence of the object, and (iv) an optical system (140) configured to shape the field of irradiation of the ultraviolet radiation source (110) and 10the field of view of the optical sensor (120). The ultraviolet radiation source (110) and the optical sensor (120) are both located upstream of the optical system (140) such that the field of irradiation of the ultraviolet radiation source (110) falls within the field of view of the optical sensor (120) downstream of the optical system (140). The luminaire (100) may be used for performing an ultraviolet germicidal irradiation (UVG1) disinfection method.
A light-emitting assembly comprising a substrate adapted to be cut, a plurality of light strips and a first connection member extending longitudinally over at least part of the substrate for supplying power to the plurality of light strips is provided. A first group of linear light strips extend over the substrate from a first side of the first connection member, and a second group of linear light strips extend over the substrate from a second side, opposite to the first side, of the first connection member. The assembly further comprises a controller system configured to control a power supply to a light strip of the plurality of light strips via the first connection member. The plurality of light strips and/or the first connection member are adapted to be cut to customize a layout of the light-emitting assembly.
F21S 4/22 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
H05B 47/17 - Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations
F21V 5/04 - Refractors for light sources of lens shape
The present invention relates to operating an RF system (100) comprising multiple nodes (26, 28, 30) for transmitting and/or receiving RF messages (34). RF messages transmitted by a transmitting node (26) are received at receiving nodes (28, 30). It is determined whether the RF messages were completely received. Upon missing at least part of the RF messages at the receiving nodes, it is determined whether missing of at least part of the RF messages is caused by an activity event of a tangible entity (32) in transmission paths (40) between the transmitting node and the receiving nodes based on one or more RF system criteria. The RF messages (34) may include RF-based sensing messages (36) and RF data messages (38). A discrepancy between missed parts of the RF-based sensing messages and missed parts of the RF data messages may be determined and included in the RF system criteria.
To satisfy the application requirement to meet a high data rate and obtain a large coverage in an optical wireless communication system, an optical wireless communication, OWC, transmitter (100) is disclosed in the present invention. The OWC transmitter (100) comprises a first light source (150) configured to emit a first optical data signal (151) in a first field-of-view, FoV (155); and a second light source (160) configured to emit a second optical data signal (161) in a second FoV (165). The first light source (150) and the second light source (160) are of different types, and the first FoV (155) is wider than the second FoV (165). The OWC transmitter (100) is configured to emit the first optical data signal (151) via the first light source (150) and to emit the second optical data signal (161) via the second light source (160) simultaneously.
The present invention relates to a lighting device (10), comprising: a plurality of first light sources (24) adapted to emit visible light (24); a light guide panel (12), wherein visible light emitted by the plurality of first light sources in operation is coupled into the light guide panel via a light incoupling part (16a); at least one second light source (28) adapted to emit at least one of UV light (28′) and violet light to be coupled into the light guide panel via a light incoupling part (16a; 16b); and an optical element (30; 30′; 30″; 42) made of a first material which is different and more UV resistant than a second material that the light guide panel is made of, wherein the optical element is adapted to distribute light emitted by the at least one second light source over an area (34; 46) which is larger than a total light output surface area (35) of the at least one second light source before the light is coupled into the light guide plate.
The present invention describes a LED light unit (1) for providing LED light, the LED light unit (1) comprising a flexible printed circuit board (PCB) (2) having a first longitudinal axis (LA1) and a plurality of elongated light sources (3) each having a second longitudinal axis (LA2). The plurality of elongated light sources (3) is arranged on the flexible PCB (2) such that none of the second longitudinal axes (LA2) of the plurality of elongated light sources (3) is parallel to the first longitudinal axis (LA1) of the flexible PCB (2). The LED light unit further comprises a carrier (4), wherein the flexible PCB (2) is bent along the first longitudinal axis (LA1) such that each of the elongated light sources (3) is arranged in the shape of a substantially circular arc, and wherein the flexible PCB (2) is subsequently at least partially attached to the carrier (4).
F21S 4/22 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
The invention herein is a method for transferring data between a docking station and a user device via LiFi. The docking station/user device comprises at least one LiFi transceivers, and the user device/docking station comprises at least one LiFi transceiver. The method comprising the steps of acquiring by the docking station/user device a first communication channel transfer property, the first communication channel being between a first LiFi transceiver of the docking station/user device and a first LiFi transceiver of the user device/docking station. Acquiring by the docking station/user device a second communication channel transfer property, the second communication channel being between a second LiFi transceiver of the docking station/user device and the first LiFi transceiver of the user device/docking station. Selecting by the docking station/user device one communication channel out of the first and second communication channels based on the acquired transfer property for each channel and transmitting data over the selected communication channel.
This invention relates to a modular and removable integration technique for a luminaire (100) on an adaptor plate (201) with a general area lighting rail system (202). The luminaire (100) comprises, a mounting system (200), a lighting device (300), and a mounting device (400). The mounting system (200) comprises an adaptor plate (201) that can be attached to a rail system (202). The lighting device (300) comprises a shaft (301) that is 5 configured to have a lamp (302) on a first end and a flange (303) on a second end. The mounting device (400) comprises at least a pair of interface plugs (401, 402). The pair of interface plugs (401, 402) is configured to be attached together to form an inner perimeter (403) around a hollow space and the inner perimeter (403) can embrace the second end of the shaft (301) that is received through an opening (203) of the adaptor plate (201). The inner 10 perimeter (403) is substantially the same or larger than an outer perimeter of the shaft, but smaller than the flange (303). The opening (203) of the adaptor plater (201) is bigger than the flange (303), and smaller than the mounting device (400) when the pair of the interface plugs (401, 402) are attached together.
F21V 17/16 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts of the lighting device; Snap action mounting
F21S 8/04 - Lighting devices intended for fixed installation intended only for mounting on a ceiling or like overhead structure
F21V 21/02 - Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
A lamp driver has a transformer, a primary side circuit and a secondary side circuit. The primary side circuit comprises a half bridge circuit and a sensor circuit for measuring a conduction time or switching frequency of one of the transistors of the half bridge circuit. An estimate is provided of the output voltage from the measured conduction time.
A pluggable connector is provided for use in an optical wireless communications, OWC, system. A main housing has an electrical connector for pluggable connection to a socket, with an optical transmitter and receive circuitry in the main housing. A carrier part has an adjustable orientation relative to the main housing and includes a (passive) optical output device for delivering an optical communications signal beam and an (active) optical receiver for receiving an optical communications signal beam. A flexible optical connector is provided between the optical transmitter and the optical output device and a flexible electrical connector is provided between the optical receiver and the receive circuitry. This provides a hybrid connection scheme between a movable optical carrier part and a static electrical part.
The invention provides a system (100) comprising: a lighting device (1) comprising a sensor (4) and a light source (5), wherein the sensor (4) is configured to detect a presence in a space (10) and/or to detect an emulator signal (6), wherein the light source (4) is configured to provide ultraviolet light (7) in operation and to interrupt providing said ultraviolet light (7) in operation when the sensor (4) detects presence in said space (10); an emulator device (2) configured to convey the emulator signal (6) to the sensor (4); a controller (3) configured to control the emulator device (2) to transmit the emulator signal (6) at a first moment in time, and to determine a verification condition of the sensor (4) if the sensor (4) detects the emulator signal (6) at the first moment in time.
H05B 47/195 - Controlling the light source by remote control via wireless transmission the transmission using visible or infrared light
H05B 47/13 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
H05B 47/20 - Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant for protection
82.
LIGHTING DEVICE FOR PROVIDING A NATURAL LIGHTING EFFECT
A lighting device comprising at least three LED chains, each LED chain including a plurality of LED light sources separated from each other along the LED chain, wherein the LED light sources of each LED chain are electrically connected to a common drive signal line, wherein the light sources of the at least three LED chains are substantially evenly and non-symmetrically distributed over a light area, and a controller configured to apply a different drive signal to each drive signal line, wherein each drive signal is time varying so as to cause a time variation of at least one property of light emitted from the LED light sources. By applying different, and dynamically changing drive signals to the three groups, lighting effects resembling those occurring in nature can be accomplished, at a fraction of the costs of a pixelated and addressable device.
The invention provides a method for producing a 3D item by depositing 3D printable material, wherein the 3D printable material comprises core material and 3D printable shell material. The core material is one or more of (i) reflective, (ii) transmissive, (iii) absorbing, and (iv) luminescent for light having a wavelength in the visible wavelength range. The 3D printable shell material is transmissive for the wavelength in the visible wavelength range. A printed core-shell layer has a layer width (W) and a layer height and a first aspect ratio AR1, wherein AR1=W/H and wherein AR1>1. A cross-sectional plane of the core-shell layer comprises the layer width (W) and the layer height, and the core (330) provides a core cross-section having a first dimension (A1), which is the longest dimension of the core cross-section, and a second dimension (A2) perpendicular to the first dimension (A1), providing a second aspect ratio AR2, wherein AR2=A1/A2, wherein 2==1.5, wherein the core (330) comprises two or more strip-like elements (337), wherein each of the two or more strip-like elements (337) has an element length (LE) individually selected from the
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
B33Y 80/00 - Products made by additive manufacturing
F21V 7/24 - Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
84.
A LIGHT EMITTING DEVICE COMPRISING A FLEXIBLE LIGHT MATRIX
The present invention relates to a light emitting device (1) comprising a flexible and/or stretchable body (2), a plurality of nodes (3), and a plurality of connecting elements (4). Each node (3) of the plurality of nodes (3) is separated from at least one other node (3) of the plurality of nodes (3) by one or more connecting element (4) of the plurality of connecting elements (4). At least one of the plurality of nodes (3) and the plurality of connecting elements (4) are attached to the body (2). One or more nodes of the plurality of nodes (3) are at least one of a light source, a passive element, an electrically conductive element and a passive element. One or more connecting elements of the plurality of connecting elements (4) are at least one of a light source and an electrically conductive element. The connecting elements of the plurality of connecting elements (4) are at least one of flexible and stretchable.
H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
F21V 3/06 - Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
85.
DETECTION SYSTEM AND METHOD FOR DETECTING MOTION OF A SUBJECT
The invention relates to a detection system for detecting motion of a subject by utilizing at least two devices adapted to send and receive radiofrequency signals. The system (110) comprises a control unit (111) for controlling the at least two devices such that at least one of the at least two devices is a sending device (120) sending a radiofrequency signal with a sending signal frequency and such that at least one of the at least two devices is a receiving device (130) receiving a radiofrequency signal that is indicative of reflections of the sent radiofrequency signal of the subject, a signal frequency providing unit (112) for providing the sending signal frequency with which the radiofrequency signal has been sent, and a detection unit (113) for detecting motion of the subject by performing a passive Doppler sensing based on the received radiofrequency signal and the provided sending signal frequency.
G01S 13/53 - Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on a single spectral line and associated with one or more range gates with a phase detector or a frequency mixer to extract the Doppler information, e.g. pulse Doppler radar
G01S 7/03 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
86.
HIGH BRIGHTNESS LIGHT SOURCE PROVIDING LIGHT USING TWIN PHOSPHORS
The invention provides a light generating system (1000) comprising one or more light generating devices (100), a first luminescent material element (1210), a second luminescent material element (1220), first polarization optics (410), second polarization optics (420), and third optics (430), wherein: (a) the one or more light generating devices (100) are configured to generate device light (101); (b) the first luminescent material element (1210) comprises a first luminescent material (210) configured in a light receiving relationship with one or more of the one or more light generating devices (100) and configured to convert at least part of the received device light (101) into first luminescent material light (211); (c) the second luminescent material element (1220) comprises a second luminescent material (220) configured in a light receiving relationship with one or more of the one or more light generating devices (100) and configured to convert at least part of the received device light (101) into second luminescent material light (221); (d) the first polarization optics (410) are configured downstream of the first luminescent material (210) and upstream of the third optics (430); wherein the first polarization optics (410) are configured to provide first luminescent material light (211) having a first polarization; (e) the second polarization optics (420) are configured downstream of the second luminescent material (220) and upstream of the third optics (430); wherein the second polarization optics (420) are configured to provide second luminescent material light (221) having a second polarization different from the first polarization; and (f) the third optics (430) are configured to combine in an operational mode of the light generating system (1000) the polarized first luminescent material light (211) and the polarized second luminescent material light (221); and wherein the third optics (430) comprises a reflective polarizer.
A method is provided of calibrating a lighting system to enable conversion between i) light output settings for a plurality of lighting channels of the lighting system, each channel having a respective color spectrum from a first set of color spectra, and ii) a light intensity at an area of interest for each of a second set of color spectra. The method derives a calibration matrix, based on a set default light outputs from the lighting channels, a mapping to light spectra to be measured, and light intensities measured at those light spectra. This calibration procedure takes advantage of the fact that using the same measurement device conventionally used for a simple calibration, it is possible to retrieve not only the total measured PPFD, but also partial PPFD values per spectral range.
A method comprises receiving (101) user information, determining (103) that a user is away from home based on the user information, and receiving (105) light information from a lighting system which comprises a light source. The light information is indicative of the state of the light source. The method further comprises determining (107), based on the light information, that the light source is on while the user is away from home, determining (109) what caused the light source to be turned on if it has been determined that the light source is on while the user is away from home and deciding (111) whether or not to notify the user in dependence on the cause after the cause has been determined. After the decision has been made, the notification is transmitted (113) to a user device of the user in dependence on the decision.
A light emitting diode, LED, filament (100, 200, 420, 430, 510), comprising an array of a plurality of light emitting diodes (110, 250, 260, 270,410, 415), LEDs, wherein the LED filament comprises a center axis, A, and elongates in a meandering shape in a plane, P, is provided. At least a first segment (120, 220) of the LED filament, which elongates along the center axis, A, has first width, W1, and is configured to emit light with a first intensity, I1, and a first color temperature, CT1. At least a second segment (130, 230) of the LED filament, which elongates along the center axis, A, has second width, W2, and is configured to emit light with a second intensity, I2, and a second color temperature, CT2. For the at least one first segment and the at least one second segment, at least one of I1≠I2, CT1≠CT2, and W1≠W2 is fulfilled.
F21S 4/28 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
F21S 4/22 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
90.
SYSTEMS AND METHODS FOR CONFIGURING MODULAR AIR QUALITY SENSING CAPABILITIES
Systems and methods for dynamically configuring an air quality sensing device are provided. Systems include an enclosure having a communication module; an integrated circuit board mounted to or within the enclosure, wherein the integrated circuit board includes a connector in communication with the communication module; a first air quality sensor on the integrated circuit board; an expansion socket mounted on or arranged within the integrated circuit board, wherein the expansion socket is configured to receive an expansion integrated circuit board having an additional air quality sensor; and a microcontroller in communication with the first air quality sensor and the additional air quality sensor when the additional air quality sensor is installed via the expansion socket. The systems and methods can also include sending sensor status information to a cloud platform for retrieval and displaying of the sensor status information on a mobile application.
A modular socket (106, 306) for removably receiving a light-emitting diode (“LED”) driver (124, 324) and coupling the LED driver to LED(s) (104) is described herein and may include: a housing (108, 308); a power input interface (110, 310) to receive a supply voltage; a power output interface (120, 320) electrically coupled with the power input interface within the housing; an LED control input interface (128, 328) that is electrically coupled with one or more LEDs; and one or more mechanical engagement and locking structures (134, 334). Mechanical engagement of the mechanical engagement and locking structures with corresponding mechanical engagement and locking structures of the LED driver may simultaneously effect electrical coupling between: the power output interface and a power input interface (122, 322) of the LED driver, and the LED control input interface and an LED output interface (126, 326) of the LED driver.
A linear light fixture can include a tray and an optical device, where the tray includes a circuit board receiving section, first and second tray side sections, and a retention feature, where the first and second tray side sections include an optical device receiving feature. The optical device can include an optical section, first and second optical device side sections, and a complementary retention feature, where the first and second optical device side sections include a tray mating feature that is configured to be disposed within the optical device receiving feature, where the retention feature and the complementary retention feature are disengaged when the tray mating feature is being received by the optical device receiving feature, and where the retention feature and the complementary retention feature are engaged after the tray mating feature is received by the optical device receiving feature to fixedly secure the optical device to the tray.
F21S 4/28 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
F21V 17/16 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts of the lighting device; Snap action mounting
F21V 19/00 - Fastening of light sources or lamp holders
A LED driver circuit uses a first current source circuit to set an output current, controlled by pulse width modulation and a second current source circuit for charging a storage capacitor. A compensating arrangement is used for increasing the current delivered by the second current source circuit during off period times of the pulse width modulation. This compensates the current drawn from the input and enables better timing control of the input current pulses.
2 is fulfilled, and wherein at least two second sections of the plurality of second sections are adjacently arranged and arranged at least partially parallel to each other.
F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
F21K 9/66 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction - Details of globes or covers forming part of the light source
F21Y 113/13 - Combination of light sources of different colours comprising an assembly of point-like light sources
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
An asymmetric total internal reflector (TIR) lens and a luminaire including a plurality of asymmetric TIR lenses designed to provide increased control on spill light and produce asymmetric distribution within each TIR lens and that does not require a secondary optic arranged at an exit plane of the TIR lens. The TIR lenses disclosed herein utilize a refractive member having a plurality of portions, each portion includes a middle longitudinal edge, a middle lateral edge; and a middle corner formed between the middle longitudinal edge and the middle lateral edge. The TIR lens also includes a collimator arranged about the refractive member that includes an inner surface configured to receive electromagnetic radiation from the refractive member and reflect or refract it through an exit plane of the TIR lens.
A luminaire (1) is provided comprising a luminaire housing (3), a light module(5), and a communication module (7). The light module comprises a light source (15) for emitting light from the luminaire (1) and wherein the light module (5) is accommodated at least partly within the luminaire housing (3). The communication module (7) is configured for wireless transmitting and/or receiving communication signals which are unrelated to the 5 lighting function of the luminaire and/or to the operation of the light module. The communication module (7) is accommodated within the luminaire housing (3).
The invention concerns a horticulture master lighting device (11) comprises a light source and a processor configured to determine one or more horticulture master light settings and control the light source to render horticulture master light based on the one or more horticulture master light settings. The horticulture master light illuminates a plant (3) from a first position and further comprises a modulated light communication signal. The invention further concerns a horticulture slave lighting device (21) comprises a light sensor, a light source, and a processor configured to receive, via the light sensor, the horticulture master light from the horticulture master lighting device, determine one or more horticulture slave light settings based on the modulated light communication signal, and control the light source to render horticulture slave light based on the one or more horticulture slave light settings. The horticulture slave light illuminates the plant from a second position.
A high bay light fixture (100) comprising multiple heat sink structures (102, 104, 106, 108) attached to an electronics housing (110), and light sources (132, 134, 136, 138) attached to the multiple heat sink structures (102, 104, 106, 108). Each heat sink structure (102, 104, 106, 108) includes a bottom wall (202) and side walls (204, 206, 208, 210) that extend up from the bottom wall (202). Each light source (132, 134, 136, 138) is attached to the bottom wall (202) of a respective heat sink structure (102, 104, 106, 108) on a surface of the bottom wall (202) facing away from the electronics housing (110). Each heat sink structure (102, 104, 106, 108) is spaced from other heat sink structures of the multiple heat sink structures (102, 104, 106, 108) that are adjacent to the heat sink structure (102, 104, 106, 108).
F21V 29/71 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
F21S 8/06 - Lighting devices intended for fixed installation intended only for mounting on a ceiling or like overhead structure by suspension
F21V 29/83 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
F21V 17/12 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
99.
SWITCHING BETWEEN SINGLE- AND MULTI-CHANNEL RADIO FREQUENCY BASED SENSING
The present invention relates to radio frequency based sensing based on multiple communication technologies (476, 486). Radio frequency based sensing is performed by a single-channel communication technology (476) in order to detect sensing events. A single-channel confidence level (470) for detecting a sensing event by performing radio frequency based sensing by the single-channel communication technology (476) is determined. Upon detecting that the single-channel confidence level (470) is above a first single-channel threshold level (474) and below a second single-channel threshold level (472) which is higher than the first single-channel threshold level (474), a multi-channel communication technology (486) for performing radio frequency based sensing is selected based on one or more radio frequency system criteria, and radio frequency based sensing is performed by the multi-channel communication technology (486).
G08B 13/187 - Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interference of a radiation field
Disclosed is a luminaire comprising a lighting unit, and a wireless RF communication device, wherein at least a part of the lighting unit and at least a part of the wireless RF communication device are in thermal contact with a same heat sink component. Examples of wireless communication devices include wireless mmWave backhaul devices for 5G communication.
patents
