A multi -wavelength light source for switching a light beam with different wavelengths is provided, wherein the light source covers a range of wavelengths. The light source contains a series of light emitting diodes (LEDs) arranged in a circular or semicircular pattern, where each LED is associated with one channel and has a different wavelength falling within the range of wavelengths. A rotational center mirror and dichroic plate is provided and an engine that controls rotation of the rotational center mirror and dichroic plate and switching speed of the mirror and dichroic plate. Each of the LEDs is fixed on its indexed position having different planes of incidence however once the dichroic is moved by the motor to face the selected LEDs the source beams make same incident ray angle to the dichroic. The output light beam of every light source is reflected along the same output direction by the rotational dichroic, and wherein the rotational center mirror, as controlled by the engine, acts as a switch for light beams with different wavelengths that are received from the different LEDs.
A vertical cavity surface emitting laser (VCSEL) has a shortened overall laser cavity by combining the gain section with a distributed Bragg reflector (DBR). The overall cavity length can be contracted by placing gain structures inside the DBR. This generally applies to a number of semiconductor material systems and wavelength bands, but this scheme is very well suited to the AlGaAs/GaAs material system with strained InGaAs quantum wells as a gain medium, for example.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/04 - Procédés ou appareils pour l'excitation, p.ex. pompage
H01S 5/343 - Structure ou forme de la région active; Matériaux pour la région active comprenant des structures à puits quantiques ou à superréseaux, p.ex. lasers à puits quantique unique [SQW], lasers à plusieurs puits quantiques [MQW] ou lasers à hétérostructure de confinement séparée ayant un indice progressif [GRINSCH] dans des composés AIIIBV, p.ex. laser AlGaAs
3.
BONDED TUNABLE VCSEL WITH BI-DIRECTIONAL ACTUATION
A MEMS tunable VCSEL includes a membrane device having a mirror and a distal-side electrostatic cavity for displacing the mirror to increase a size of an optical cavity. A VCSEL device includes an active region for amplifying light. One or more proximal-side electrostatic cavities are defined between the VCSEL device and the membrane device and used to displace the mirror to decrease a size of an optical cavity.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 3/105 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation par commande de la position relative ou des propriétés réfléchissantes des réflecteurs de la cavité
4.
BONDED TUNABLE VCSEL WITH BI-DIRECTIONAL ACTUATION
A MEMS tunable VCSEL includes a membrane device having a mirror and a distal-side electrostatic cavity for displacing the mirror to increase a size of an optical cavity. A VCSEL device includes an active region for amplifying light. One or more proximal-side electrostatic cavities are defined between the VCSEL device and the membrane device and used to displace the mirror to decrease a size of an optical cavity.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 3/105 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation par commande de la position relative ou des propriétés réfléchissantes des réflecteurs de la cavité
5.
Bonded tunable VCSEL with bi-directional actuation
A MEMS tunable VCSEL includes a membrane device having a mirror and a distal-side electrostatic cavity for displacing the mirror to increase a size of an optical cavity. A VCSEL device includes an active region for amplifying light. Then, one or more proximal-side electrostatic cavities are defined between the VCSEL device and the membrane device and used to displace the mirror to decrease a size of an optical cavity.
H01S 3/10 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/068 - Stabilisation des paramètres de sortie du laser
H01S 5/06 - Dispositions pour commander les paramètres de sortie du laser, p.ex. en agissant sur le milieu actif
6.
BONDED TUNABLE VCSEL WITH BI-DIRECTIONAL ACTUATION
A MEMS tunable VCSEL includes a membrane device having a mirror and a distal-side electrostatic cavity for displacing the mirror to increase a size of an optical cavity. A VCSEL device includes an active region for amplifying light. Then, a proximal-side electrostatic cavity is defined between the VCSEL device and the membrane device is used to displace the mirror to decrease a size of an optical cavity.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
B81B 7/02 - Systèmes à microstructure comportant des dispositifs électriques ou optiques distincts dont la fonction a une importance particulière, p.ex. systèmes micro-électromécaniques (SMEM, MEMS)
H01S 5/04 - Procédés ou appareils pour l'excitation, p.ex. pompage
An illumination device for generating multiple wavelength, narrow linewidth, single longitudinal and single transversal mode emission, includes a laser-medium inside a laser-resonator configured to receive a pump beam from a single pump diode and produce a laser wave. Laser-resonator ingress and egress mirrors are configured to resonate the laser wave. An an OPO-resonator and OPO crystal are configured to receive the laser wave and produce short and long OPO waves. An OPO-resonator ingress mirror is configured to resonate the short OPO wave with the laser-resonator egress mirror. A nonlinear output crystal is configured to receive the short OPO wave and produce at least one output wave, wherein the the laser-resonator egress mirror is configured to emit at least two of the leaking out laser wave and the output waves.
H01S 3/08 - Structure ou forme des résonateurs optiques ou de leurs composants
G02F 1/355 - Optique non linéaire caractérisée par les matériaux utilisés
H01S 3/102 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation par commande du milieu actif, p.ex. par commande des procédés ou des appareils pour l'excitation
H01S 3/108 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation par commande de dispositifs placés dans la cavité utilisant des dispositifs optiques non linéaires, p.ex. produisant une diffusion par effet Brillouin ou Raman
H01S 3/109 - Multiplication de la fréquence, p.ex. génération d'harmoniques
H01S 3/0941 - Procédés ou appareils pour l'excitation, p.ex. pompage utilisant le pompage optique par de la lumière cohérente produite par un laser à semi-conducteur, p.ex. par une diode laser
A very strong selection mechanism is provided in a tunable vertical cavity surface emitting laser (VCSEL) by manipulating the laser threshold to be different for TE and TM polarization by a employing a subwavelength grating in the laser cavity. The laser selects the polarization with the lowest threshold. The grating does not diffract and does not add loss to the cavity. It works by creating a large birefringence layer between the semiconductor and air sub-cavities of the full VCSEL. Multilayer stack calculations show that this results in a lower threshold for the TM polarization over the TE. This subwavelength grating layer, in one embodiment, replaces the AR coating on the semiconductor surface.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/343 - Structure ou forme de la région active; Matériaux pour la région active comprenant des structures à puits quantiques ou à superréseaux, p.ex. lasers à puits quantique unique [SQW], lasers à plusieurs puits quantiques [MQW] ou lasers à hétérostructure de confinement séparée ayant un indice progressif [GRINSCH] dans des composés AIIIBV, p.ex. laser AlGaAs
9.
PANEL INSPECTION DEVICE AND METHOD FOR INSPECTING A PANEL
An inspection device for inspecting a panel, in particular a display, or a PCB, includes a first mirror, a second mirror, a third mirror, and a sensor. The first mirror, the second mirror, and the third mirror are arranged to display a section of the panel to be inspected on the sensor with a magnification factor greater than one. At least two of the group of the first mirror, the second mirror, and the third mirror, have both a first type of curvature, and a remaining mirror has a second type of curvature, opposite to the first type of curvature. The first mirror, the second mirror, and the third mirror form a telecentric system which is telecentric on a panel facing side and/or on a sensor facing side.
A very strong selection mechanism is provided in a tunable vertical cavity surface emitting laser (VCSEL) by manipulating the laser threshold to be different for TE and TM polarization by a employing a subwavelength grating in the laser cavity. The laser selects the polarization with the lowest threshold. The grating does not diffract and does not add loss to the cavity. It works by creating a large birefringence layer between the semiconductor and air sub-cavities of the full VCSEL. Multilayer stack calculations show that this results in a lower threshold for the TM polarization over the TE. This subwavelength grating layer, in one embodiment, replaces the AR coating on the semiconductor surface.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/343 - Structure ou forme de la région active; Matériaux pour la région active comprenant des structures à puits quantiques ou à superréseaux, p.ex. lasers à puits quantique unique [SQW], lasers à plusieurs puits quantiques [MQW] ou lasers à hétérostructure de confinement séparée ayant un indice progressif [GRINSCH] dans des composés AIIIBV, p.ex. laser AlGaAs
11.
Tunable VCSEL polarization control with intracavity subwavelength grating
A very strong selection mechanism is provided in a tunable vertical cavity surface emitting laser (VCSEL) by manipulating the laser threshold to be different for TE and TM polarization by a employing a subwavelength grating in the laser cavity. The laser selects the polarization with the lowest threshold. The grating does not diffract and does not add loss to the cavity. It works by creating a large birefringence layer between the semiconductor and air sub-cavities of the full VCSEL. Multilayer stack calculations show that this results in a lower threshold for the TM polarization over the TE. This subwavelength grating layer, in one embodiment, replaces the AR coating on the semiconductor surface.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/068 - Stabilisation des paramètres de sortie du laser
H01S 5/04 - Procédés ou appareils pour l'excitation, p.ex. pompage
12.
ENDOSCOPE SYSTEM AND METHOD FOR OPERATING THE ENDOSCOPE SYSTEM
An endoscope system (100) for imaging a sample, an inner part of a patient, or an organ with an imaging device (150) includes an endoscope tube (130) with a proximal end and a distal end configured to mount the imaging device. A handle (120) at the endoscope tube proximal end is configured to move the endoscope tube rotationally. An interface (160) is configured to removably attach the endoscope tube to the handle and to rotate the endoscope tube around a main axis relative to the handle without restriction.
A61B 1/00 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments
A system for switching and collating light contains a focusing lens that focuses a laser. A first linear polarizer receives the focused beam and transmits the focused beam incoming light, polarized at plus 45 degrees, to a Pockels cell. The Pockels cell contains: a first Pockels cell crystal that follows the first linear polarizer; a first internal birefringent crystal plate that compensates for birefringence of the first Pockels cell crystal; a second internal birefringent compensation crystal plate that follows the first plate; and a second Pockels cell crystal, that follows the second plate. The second plate considerably compensates for birefringence of the second Pockels cell crystal. A second linear polarizer receives light from the Pockels cell and transmits light best if the light is polarized at minus 45 degrees to an optical fiber.
G02F 1/01 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur
G02F 1/03 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des céramiques ou des cristaux électro-optiques, p.ex. produisant un effet Pockels ou un effet Kerr
G02F 1/29 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de la position ou de la direction des rayons lumineux, c. à d. déflexion
An ultraviolet C (UVC) unit, comprises a Light Emitting Diode (LED) module containing a series of UVC LEDs that provide UVC emission, a lens that linearly focuses the UVC emission of the LED module and a controllable baffle that directs UVC light that passes from the LED module through the lens. The UVC light emitted from the LED module is directed toward the lens for linearly focusing the emission of the LED module in order to propagate the light throughout a top portion of a room in which the UVC unit is positioned, when the baffle is in a first position, and wherein the light is propagated downward from the UVC unit when the baffle is in a second position.
A61L 2/00 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contact; Accessoires à cet effet
A61L 2/10 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contact; Accessoires à cet effet utilisant des phénomènes physiques des radiations des ultraviolets
A61L 9/20 - Désinfection, stérilisation ou désodorisation de l'air utilisant des phénomènes physiques des radiations des ultraviolets
15.
GRADIENT-INDEX FREEFORM HEAD MOUNTED DISPLAY AND HEAD-UP DISPLAY
An optical projection assembly directs a first image to an eyebox of a user combined with light from a second source. A relay optic has a non-rotationally symmetric refractive gradient- index (GRIN) component arranged to receive the first image. A tilted, partially reflective combiner has a tilted first surface to receive and transmit the light from the second source, and an opposite second surface to receive and project the first image from the relay optic and transmit the light received from the second source to the eyebox. The GRIN component is configured to reduce a perceivable aberration of the first image introduced by the combiner.
An optical system providing reduced retroreflection includes an optical element with an optic aperture. A retroreflection defeat filter has a partially obstructing material configured to absorb or reflect a subset of the optical system waveband while transmitting the rest. The partially obstructing material is arranged to occupy a first portion of the optic aperture being at least half of the optic aperture, and the partially obstructing material does not occupy a second portion of the optic aperture for the remainder of the optic aperture.
G02B 23/12 - Télescopes ou lunettes d'approche, p.ex. jumelles; Périscopes; Instruments pour voir à l'intérieur de corps creux; Viseurs; Pointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
17.
SEMICONDUCTOR SIDE EMITTING LASER ON BOARD PACKAGE AND METHOD FORMING SAME
A chip-onboard assembly for a side-looking optical component is mounted on a mounting surface of a printed circuit board (PCB) and includes a window assembly mounted to the PCB. The window assembly includes a glass window and a window holding bracket. The bracket has a first walled portion, a second walled portion attached to the first walled portion, and a third walled portion opposite the second wall portion. The first walled portion further has a cutaway section configured to accommodate the glass window. An optical encapsulant covers the covering the side-looking optical component. The glass window is attached to the side-looking optical component CoB assembly.
H01S 5/02257 - Découplage de lumière utilisant des fenêtres optiques, p.ex. spécialement adaptées pour réfléchir de la lumière sur un détecteur à l’intérieur du boîtier
H01S 5/02326 - Dispositions pour le positionnement relatif des diodes laser et des composants optiques, p.ex. rainures dans le support pour fixer des fibres optiques ou des lentilles
Tunable VCSELs (TVCSELs) employing expanded material systems with expanded mechanical/optical design space for semiconductor DBR mirrors on GaAs substrates. One is the InGaAs / AlGaAsP material system. It adds indium In to decrease InGaAs H-layer bandgap for higher refractive index and higher DBR layer refractive index contrast. Adding phosphorus P gives independent control of bandgap and strain of AlGaAsP low refractive index L-layers. The tensile strain of AlGaAsP L-layer compensates compressive strain of InGaAs H-layer and lowers the cumulative strain of the multilayer DBR structure. Another option is the InGaAsN(Sb) / AlGaAsP material system, where both types of layers can be lattice matched to GaAs. It uses indium In and nitrogen N, and possibly antimony Sb, to get independent control of strain and bandgap, and thus refractive index, of dilute nitride InGaAsN(Sb) H-layers, with lower bandgap and higher refractive index than starting GaAs. Using expanded material system enables reliable DBR mirrors with higher reflectivity and spectral bandwidth and tunable VCSELs with wider tuning range.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
19.
TUNABLE VCSEL WITH STRAIN COMPENSATED SEMICONDUCTOR DBR
Tunable VCSELs (TVCSELs) employing expanded material systems with expanded mechanical/optical design space for semiconductor DBR mirrors on GaAs substrates. One is the InGaAs / AlGaAsP material system. It adds indium In to decrease InGaAs H-layer bandgap for higher refractive index and higher DBR layer refractive index contrast. Adding phosphorus P gives independent control of bandgap and strain of AlGaAsP low refractive index L-layers. The tensile strain of AlGaAsP L-layer compensates compressive strain of InGaAs H-layer and lowers the cumulative strain of the multilayer DBR structure. Another option is the InGaAsN(Sb) / AlGaAsP material system, where both types of layers can be lattice matched to GaAs. It uses indium In and nitrogen N, and possibly antimony Sb, to get independent control of strain and bandgap, and thus refractive index, of dilute nitride InGaAsN(Sb) H-layers, with lower bandgap and higher refractive index than starting GaAs. Using expanded material system enables reliable DBR mirrors with higher reflectivity and spectral bandwidth and tunable VCSELs with wider tuning range.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
20.
Tunable VCSEL with Strain Compensated Semiconductor DBR
Tunable VCSELs (TVCSELs) employing expanded material systems with expanded mechanical/optical design space for semiconductor DBR mirrors on GaAs substrates. One is the InGaAs/AlGaAsP material system. It adds indium In to decrease InGaAs H-layer bandgap for higher refractive index and higher DBR layer refractive index contrast. Adding phosphorus P gives independent control of bandgap and strain of AlGaAsP low refractive index L-layers. The tensile strain of AlGaAsP L-layer compensates compressive strain of InGaAs H-layer and lowers the cumulative strain of the multilayer DBR structure. Another option is the InGaAsN(Sb)/AlGaAsP material system, where both types of layers can be lattice matched to GaAs. It uses indium In and nitrogen N, and possibly antimony Sb, to get independent control of strain and bandgap, and thus refractive index, of dilute nitride InGaAsN(Sb) H-layers, with lower bandgap and higher refractive index than starting GaAs. Using expanded material system enables reliable DBR mirrors with higher reflectivity and spectral bandwidth and tunable VCSELs with wider tuning range.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/068 - Stabilisation des paramètres de sortie du laser
09 - Appareils et instruments scientifiques et électriques
Produits et services
Precision optical lenses and associated accessories, namely,
magnification lenses, camera mounts, focus and illumination
modules and controls, for use in the fields of inspection,
metrology, scientific research, microscopy, machine vision,
surveillance and monitoring.
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Precision optical zoom lenses and associated accessories, namely, magnification lenses, camera mounts, focus and illumination modules and controls in the nature of an electronic motor control of zoom and focus functions for use in the fields of inspection, metrology, scientific research, microscopy, machine vision, surveillance, and monitoring.
09 - Appareils et instruments scientifiques et électriques
Produits et services
An optomechanical cage system consisting of interchangeable
mechanical components, namely, rods, mounting plates, base
plates, cubes, holders, positioners/adjusters, adapters, and
mounting material to enable the construction of
optomechanical setups.
09 - Appareils et instruments scientifiques et électriques
Produits et services
A point source, resonant-cavity light-emitting diode (RCLED)
for integration into weapon sights to generate an aiming
point within the optic for targeting purposes.
25.
HERMETIC SURFACE MOUNT PACKAGE FOR SEMICONDUCTOR SIDE EMITTING LASER AND METHOD FORMING SAME
A method for manufacturing a hermetic side looking laser surface-mount device (SMD) package includes forming a glass cap. An array of pockets is formed in the first glass wafer. The array of pockets is sealed by bonding a second glass wafer to the first glass wafer. The glass cap is released by singulating the sealed array of pockets.
H01S 5/40 - Agencement de plusieurs lasers à semi-conducteurs, non prévu dans les groupes
H01S 5/02257 - Découplage de lumière utilisant des fenêtres optiques, p.ex. spécialement adaptées pour réfléchir de la lumière sur un détecteur à l’intérieur du boîtier
H01S 5/0239 - Combinaisons d’éléments électriques ou optiques
H01S 5/024 - Dispositions pour la gestion thermique
H01S 5/026 - Composants intégrés monolithiques, p.ex. guides d'ondes, photodétecteurs de surveillance ou dispositifs d'attaque
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Optical instruments, namely, an optomechanical cage system consisting of interchangeable mechanical components, namely, rods, mounting plates, base plates, cubes, holders, positioners and adjusters, adapters, and mounting material to enable the construction of optomechanical setups for scientific research and proof of concept in product development.
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) A point source, resonant-cavity light-emitting diode (RCLED) for integration into weapon sights to generate an aiming point within the optic for targeting purposes.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Precision optical zoom lenses and associated accessories, namely, magnification lenses, camera mounts, focus and illumination modules and controls in the nature of an electronic motor control of zoom and focus functions for use in the fields of inspection, metrology, scientific research, microscopy, machine vision, surveillance, and monitoring
An optically pumped tunable VCSEL swept source module has a VCSEL and a pump, which produces light to pump the VSCEL, wherein the pump is geometrically isolated from the VCSEL. In different embodiments, the pump is geometrically isolated by defocusing light from the pump in front of the VCSEL, behind the VCSEL, and/or by coupling the light from the pump at an angle with respect to the VCSEL. In the last case, angle is usually less than 88 degrees. There are further strategies for attacking pump noise problems. Pump feedback can be reduced through (1) Faraday isolation and (2) geometric isolation. Single frequency pump lasers (Distributed feedback lasers (DFB), distributed Bragg reflector lasers (DBR), Fabry-Perot (FP) lasers, discrete mode lasers, volume Bragg grating (VBG) stabilized lasers can eliminate wavelength jitter and amplitude noise that accompanies mode hopping.
H01S 5/04 - Procédés ou appareils pour l'excitation, p.ex. pompage
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/50 - Structures amplificatrices non prévues dans les groupes
H01S 5/22 - Structure ou forme du corps semi-conducteur pour guider l'onde optique ayant une structure à nervures ou à bandes
H01S 5/30 - Structure ou forme de la région active; Matériaux pour la région active
H01S 5/343 - Structure ou forme de la région active; Matériaux pour la région active comprenant des structures à puits quantiques ou à superréseaux, p.ex. lasers à puits quantique unique [SQW], lasers à plusieurs puits quantiques [MQW] ou lasers à hétérostructure de confinement séparée ayant un indice progressif [GRINSCH] dans des composés AIIIBV, p.ex. laser AlGaAs
H01S 5/02251 - Découplage de lumière utilisant des fibres optiques
09 - Appareils et instruments scientifiques et électriques
Produits et services
optical instruments, namely, an optomechanical cage system consisting of interchangeable mechanical components, namely, rods, mounting plates, base plates, cubes, holders, positioners and adjusters, adapters, and mounting material to enable the construction of optomechanical setups for scientific research and proof of concept in product development
09 - Appareils et instruments scientifiques et électriques
Produits et services
optical instruments, namely, an optomechanical cage system consisting of interchangeable mechanical components, namely, rods, mounting plates, base plates, cubes, holders, positioners and adjusters, adapters, and mounting material to enable the construction of optomechanical setups for scientific research and proof of concept in product development
09 - Appareils et instruments scientifiques et électriques
Produits et services
A point source, resonant-cavity light-emitting diode (RCLED) for integration into weapon sights to generate an aiming point within the optic for targeting purposes
09 - Appareils et instruments scientifiques et électriques
Produits et services
Electrical apparatus, namely, an illumination system comprising light sources including, LEDs and lasers (not for medical purposes), and the associated controls, and accessories included with the illumination system
37.
SYSTEM AND METHOD FOR MANUFACTURING A SYSTEM FOR FILTERING AND DISINFECTING DRINKING WATER
A water filter system includes a water filter assembly and an enclosure. The water filter assembly has a housing with a water inlet and a water outlet, a filter portion within the housing, and a reservoir portion within the housing apart from the filter portion. A window in the housing conveys ultraviolet light into the reservoir from an external light source. A water channel conveys water from the inlet to the outlet through the filter and the reservoir portions. The enclosure removably receives the water filter assembly in a cavity within the enclosure. An enclosure water inlet mates with the filter water inlet, and an enclosure water outlet mates with the filter water outlet. A light source within the enclosure is arranged to direct light into the reservoir portion.
An endoscope system (200, 300) for imaging an interior of a patient (180) comprises an endoscope tube (210, 310), an imaging unit (350) for imaging the interior of the patient, wherein the imaging unit is at least partially located inside the endoscope tube, and an optical coherence tomography unit (360), wherein said imaging unit (350) is distinct from the OCT unit (360), and wherein a sample arm (360c) of the OCT unit is at least partially located inside the endoscope tube.
A61B 1/00 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments
A61B 5/00 - Mesure servant à établir un diagnostic ; Identification des individus
An illumination source includes a laser driver unit configured to emit a plasma sustaining beam. An ingress collimator receives the plasma sustaining beam and produces a collimated ingress beam. A focusing optic receives the collimated ingress beam and produce a focused sustaining beam. A sealed lamp chamber contains an ionizable media that, once ignited, forms a high intensity light emitting plasma having a waist size smaller than 150 microns. The sealed lamp chamber further includes an ingress window configured to receive the focused sustaining beam and an egress window configured to emit the high intensity light. An ignition source is configured to ignite the ionizable media, and an exit fiber is configured to receive and convey the high intensity light. The high intensity light is white light with a black body spectrum, and the exit fiber has a diameter in the range of 200-500 micrometers.
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
H01J 61/02 - Lampes à décharge dans un gaz ou dans une vapeur - Détails
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
40.
QUAD FLAT NO-LEADS PACKAGE FOR SIDE EMITTING LASER DIODE
A semiconductor package is manufactured by physically attaching a side emitting laser diode to a floor portion of a recessed flat no-leads (FNL) package having a wall extending from and surrounding a perimeter of a recessed floor portion. The attached side emitting laser diode is oriented to direct a laser beam toward an opposing portion of the wall. The FNL package is singulated into a first piece and a second piece along a singulation plane through the FNL package wall and floor portion between the side emitting laser diode and the opposing portion of the wall. After singulation the opposing portion of the wall is in the second piece and the side emitting laser diode is in the first piece.
A surface mountable laser driver circuit package (405) is configured to mount on a host printed circuit board, PCB, (402). A surface mount circuit package includes a lead-frame (445). A plurality of laser driver circuit components (310, 320, 330) is mounted on and in electrical communication with the lead-frame of the surface mount circuit package. A dielectric layer (440) is located between the lead-frame and the host PCB and includes portals through the dielectric layer each arranged to accommodate an electrical connection (441, 442) between the lead-frame and the host PCB. The lead-frame and the dielectric layer are arranged such that a first lead-frame portion and a first dielectric layer portal align with a first end of a host PCB trace configured to provide a current return path for the surface mount laser driver, and a second lead-frame portion and a second dielectric layer portal align with a second end of the host PCB trace.
H03K 17/687 - Commutation ou ouverture de porte électronique, c. à d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs les dispositifs étant des transistors à effet de champ
H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
H03K 17/0416 - Modifications pour accélérer la commutation sans réaction du circuit de sortie vers le circuit de commande par des dispositions prises dans le circuit de sortie
H03K 17/16 - Modifications pour éliminer les tensions ou courants parasites
A low inductance electrical switching circuit arrangement (200), includes a two sided substrate (202) with a plurality of through-substrate electrical vias (220, 222). A capacitor (212) is arranged on the substrate first side above a first via (220), and an electrical sink (214) is arranged on the first side above a second via (222). A switching component (216) configured to produce a plurality of current pulses is arranged on the substrate second side below the first and second via.
H03K 17/687 - Commutation ou ouverture de porte électronique, c. à d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs les dispositifs étant des transistors à effet de champ
H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
H03K 17/0416 - Modifications pour accélérer la commutation sans réaction du circuit de sortie vers le circuit de commande par des dispositions prises dans le circuit de sortie
43.
Bonded tunable VCSEL with bi-directional actuation
A MEMS tunable VCSEL includes a membrane device having a mirror and a distal-side electrostatic cavity for displacing the mirror to increase a size of an optical cavity. A VCSEL device includes an active region for amplifying light. Then, a proximal-side electrostatic cavity is defined between the VCSEL device and the membrane device is used to displace the mirror to decrease a size of an optical cavity.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
B81B 7/02 - Systèmes à microstructure comportant des dispositifs électriques ou optiques distincts dont la fonction a une importance particulière, p.ex. systèmes micro-électromécaniques (SMEM, MEMS)
H01S 5/04 - Procédés ou appareils pour l'excitation, p.ex. pompage
09 - Appareils et instruments scientifiques et électriques
Produits et services
Objective Lens Assemblies for use in machine vision and
automated optical inspection applications to include imaging
and visual inspection of manufacturing processes of
industrial components and structures including
micro-electronics, printed circuit boards (PCBs), surface
mount technologies (SMTs), consumer electronics, mobile
devices, flat panel displays like liquid crystal displays
(LCDs) and organic light emitting diodes (OLEDs), MEMS
devices, photovoltaics and semiconductor wafer processing.
Provided herein are deposition systems utilizing coated grids in an ion deposition process which provide more predictable erosion of the coating rather than erosion of the grid itself. Further, coatings may be utilized in which the coating material does not act as a contaminant to the deposition process, thereby eliminating contamination of the sample surface due to deposition of unwanted grid material. Also provided are methods of refurbishing a coated grid by periodically replacing the coating material thus protecting the grid itself and allowing a grid to be used indefinitely.
H01J 37/317 - Tubes à faisceau électronique ou ionique destinés aux traitements localisés d'objets pour modifier les propriétés des objets ou pour leur appliquer des revêtements en couche mince, p.ex. implantation d'ions
C23C 14/46 - Pulvérisation cathodique par un faisceau d'ions produit par une source d'ions externe
A zoom objective comprises housing lens, a first movable lens, and a first gearless motor. The first gearless motor is adapted to cause a first longitudinal movement of the first movable lens relative to the housing lens. A method of operating a zoom objective provides a first movable lens, a housing lens, and a first gearless motor. The method includes moving the first movable lens relative to the housing lens by a force generated by the first gearless motor.
G02B 7/08 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles avec mécanisme de mise au point ou pour faire varier le grossissement adaptés pour fonctionner en combinaison avec un mécanisme de télécommande
G02B 7/10 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles avec mécanisme de mise au point ou pour faire varier le grossissement par déplacement axial relatif de plusieurs lentilles, p.ex. lentilles d'objectif à distance focale variable
G02B 13/00 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous
Quantum well designs for tunable VCSELs are disclosed that are tolerant of the wavelength shift. Specifically, the active region has even number of substantially uniformly spaced (¼ of the center wavelength in the semiconducting material) quantum wells.
H01S 5/068 - Stabilisation des paramètres de sortie du laser
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/34 - Structure ou forme de la région active; Matériaux pour la région active comprenant des structures à puits quantiques ou à superréseaux, p.ex. lasers à puits quantique unique [SQW], lasers à plusieurs puits quantiques [MQW] ou lasers à hétérostructure de confinement séparée ayant un indice progressif [GRINSCH]
H01S 5/343 - Structure ou forme de la région active; Matériaux pour la région active comprenant des structures à puits quantiques ou à superréseaux, p.ex. lasers à puits quantique unique [SQW], lasers à plusieurs puits quantiques [MQW] ou lasers à hétérostructure de confinement séparée ayant un indice progressif [GRINSCH] dans des composés AIIIBV, p.ex. laser AlGaAs
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Objective Lens Assemblies for use in machine vision and automated optical inspection applications, namely, lens assemblies for imaging and visual inspection of manufacturing processes of industrial components and structures, namely, optical inspection apparatus for inspecting defects on surfaces of wafers and printed circuits.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Objective lens assemblies for use in machine vision and automated optical inspection applications, namely, lens assemblies for imaging and visual inspection of manufacturing processes of industrial components and structures
An optically pumped tunable VCSEL swept source module has a VCSEL and a pump, which produces light to pump the VSCEL, wherein the pump is geometrically isolated from the VCSEL. In different embodiments, the pump is geometrically isolated by defocusing light from the pump in front of the VCSEL, behind the VCSEL, and/or by coupling the light from the pump at an angle with respect to the VCSEL. In the last case, angle is usually less than 88 degrees. There are further strategies for attacking pump noise problems. Pump feedback can be reduced through (1) Faraday isolation and (2) geometric isolation. Single frequency pump lasers (Distributed feedback lasers (DFB), distributed Bragg reflector lasers (DBR), Fabry-Perot (FP) lasers, discrete mode lasers, volume Bragg grating (VBG) stabilized lasers can eliminate wavelength jitter and amplitude noise that accompanies mode hopping.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/04 - Procédés ou appareils pour l'excitation, p.ex. pompage
H01S 5/50 - Structures amplificatrices non prévues dans les groupes
H01S 5/22 - Structure ou forme du corps semi-conducteur pour guider l'onde optique ayant une structure à nervures ou à bandes
H01S 5/30 - Structure ou forme de la région active; Matériaux pour la région active
H01S 5/343 - Structure ou forme de la région active; Matériaux pour la région active comprenant des structures à puits quantiques ou à superréseaux, p.ex. lasers à puits quantique unique [SQW], lasers à plusieurs puits quantiques [MQW] ou lasers à hétérostructure de confinement séparée ayant un indice progressif [GRINSCH] dans des composés AIIIBV, p.ex. laser AlGaAs
51.
Tunable VCSEL polarization control through dissimilar die bonding
A design and method for introducing asymmetric crystal strain to control polarization in a tunable VCSEL, either optically or electrically pumped. The invention is especially relevant to wafer- or die-bonded tunable VCSELs. Then, mechanical stress is applied to the half VCSEL device by asymmetric arrangement of metal bond pads.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/34 - Structure ou forme de la région active; Matériaux pour la région active comprenant des structures à puits quantiques ou à superréseaux, p.ex. lasers à puits quantique unique [SQW], lasers à plusieurs puits quantiques [MQW] ou lasers à hétérostructure de confinement séparée ayant un indice progressif [GRINSCH]
H01S 5/06 - Dispositions pour commander les paramètres de sortie du laser, p.ex. en agissant sur le milieu actif
H01S 5/343 - Structure ou forme de la région active; Matériaux pour la région active comprenant des structures à puits quantiques ou à superréseaux, p.ex. lasers à puits quantique unique [SQW], lasers à plusieurs puits quantiques [MQW] ou lasers à hétérostructure de confinement séparée ayant un indice progressif [GRINSCH] dans des composés AIIIBV, p.ex. laser AlGaAs
H01S 5/32 - Structure ou forme de la région active; Matériaux pour la région active comprenant des jonctions PN, p.ex. hétérostructures ou doubles hétérostructures
A method is disclosed for maintaining a desired optical output in a solid state illumination device, where the device is configured to accommodate multiple light emitting diodes (LEDs) and to combine light from the LEDs to produce a single optical output. The method includes testing the LEDs before adding them into the device. The testing produces characterizing information that describes how one or more optical properties (e.g., optical power and/or peak wavelength) of the tested LED change with temperature. This characterizing information is stored in a computer-based memory of the device, and the tested LED is added (connected) into the device. Then, during operation, temperature sensors measure a temperature associated with each respective LED in the device, and electrical current to one or more of the LEDs can be adjusted based on the measured temperatures associated with each LED and its stored characterizing information.
A circuit including a source, a load, and an isolation circuit for controllably isolating the load from the source. The isolation circuit is disposed between the source and the load. The isolation circuit includes at least one insulated-gate bipolar transistor (IGBT) and at least one gate turn-off thyristor (GTO) in parallel with the insulated-gate bipolar transistor. When no fault condition exists, the GTO is configured to be ON to couple the load to the source. When a fault condition exists, the at least one IGBT is configured to turn ON. After the at least one IGBT turns ON, the at least one GTO is configured to turn OFF. After a predetermined amount of time, reflecting the post fabrication alteration to the GTO's minority carrier lifetime (e.g. electron irradiation), after the at least one GTO turns OFF, the at least one IGBT is configured to turn OFF. Alternatively, the circuit is used as an inverter switch, where at the command to turn ON is supplied, the at least one IGBT is turned ON, followed by the at least one SGTO. When commanded to turn OFF the at least one SGTO is turned OFF followed by the at least one IGBT. This alternative configuration allows the robust, controllable switching speeds of IGBTs and the superior conduction efficiency of SGTOs. The two configurations mentioned above utilize a wide range of SGTO performance, thus the ability to control the SGTOs turn-off speed by reducing its minority carrier lifetime after the device is processed is of large importance. The efficiency of all uses of the circuit can be optimized with the judicious selection of SGTO minority carrier lifetime and the ratio of active area between the SGTO and IGBT devices. In all cases there is a balance between the time the circuit can achieve hard turn-off without current commutation, the conduction efficiency of the circuit and the maximum amount of controllable current. In all cases both the conduction efficiency of the circuit is higher than an IGBT-only based circuit, and the switching performance is higher than a GTO-only based circuit.
H02H 3/033 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion - Détails avec plusieurs déconnexions selon un ordre préférentiel
H02H 3/08 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge
H02H 3/20 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à un excès de tension
H03K 17/0416 - Modifications pour accélérer la commutation sans réaction du circuit de sortie vers le circuit de commande par des dispositions prises dans le circuit de sortie
H02H 3/027 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion - Détails avec déconnexion automatique après une durée prédéterminée
H02H 3/44 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles aux taux de variation de quantités électriques
H03K 17/567 - Circuits caractérisés par l'utilisation d'au moins deux types de dispositifs à semi-conducteurs, p.ex. BIMOS, dispositifs composites tels que IGBT
Light-based medical devices and phototherapeutic apparatus for medical purposes, namely, a light emitting diode (LED) light source for medical treatments integrated and used in medical, biomedical and medical diagnostic instrument and apparatus systems
The invention is directed to a sealed high intensity illumination device configured to receive a laser beam from a laser light source. A sealed chamber is configured to contain an ionizable medium. The chamber includes a reflective chamber interior surface having a first parabolic contour and parabolic focal region, a second parabolic contour and parabolic focal region, an ingress surface configured to admit the laser beam into the chamber, and an egress surface configured to emit high intensity light from the chamber. The first parabolic contour is configured to reflect light from the first parabolic focal region to the second parabolic contour, and the second parabolic contour is configured to reflect light from the first parabolic contour to the second parabolic focal region.
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
H01J 61/24 - Moyens pour obtenir ou conserver la pression désirée à l'intérieur de l'enceinte
H01J 61/33 - Enceintes; Récipients dont la section transversale présente une forme particulière, p.ex. pour produire une tache froide
H01J 61/35 - Enceintes; Récipients pourvus de revêtements sur leurs parois; Emploi de matériaux spécifiés pour les revêtements
A light source providing multi-longitudinal resonant waves, particularly by utilizing an optical parametric oscillator (OPO) to produce a broadband emission spectrum. By configuring the system to pump the OPO far above the oscillation threshold, tunable light of macroscopic power with a short coherence length is provided. The coherence may be further shortened by additional longitudinal mode scrambling.
A light source providing tunable light of macroscopic power, particularly by utilizing a broadband pump source, an optical parametric oscillator (OPO) and at least one additional nonlinear process. The light source is capable of producing a tunable broadband emission of macroscopic power, particularly at wavelengths less than 1.1μm.
A microelectromechanical systems (MEMS)-tunable vertical-cavity surface-emitting laser (VCSEL) in which the MEMS mirror is bonded to the active region. This allows for a separate electrostatic cavity that is outside the laser's optical resonant cavity. Moreover, the use of this cavity configuration allows the MEMS mirror to be tuned by pulling the mirror away from the active region. This reduces the risk of snap down. Moreover, since the MEMS mirror is now bonded to the active region, much wider latitude is available in the technologies that are used to fabricate the MEMS mirror. This is preferably deployed as a swept source in an optical coherence tomography (OCT) system.
H01S 5/024 - Dispositions pour la gestion thermique
H01S 5/04 - Procédés ou appareils pour l'excitation, p.ex. pompage
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
An initiator including a housing adapted to be received in an igniter or rocket motor, at least one charge at a distal end of the housing, an electro-explosive device behind the charge for detonating the charge when subject to a voltage HV, and a pressure bulkhead behind the electro-explosive device. An electronic subsystem in the housing is connected to the electro-explosive device through the bulkhead and includes a lead for providing the voltage HV to the electro-explosive device to initiate it, and a switch in the lead which does not conduct if errant voltages are present on the lead to prevent initiation of the electro-explosive device until the correct voltage HV is present.
F42B 3/18 - Amorce-détonateur de sécurité résistant à une mise à feu prématurée provoquée par l'électricité statique ou des courants parasites
F42B 3/11 - Amorces-détonateurs pour ces cartouches caractérisées par le matériau utilisé, p.ex. pour l'enveloppe de l'amorce-détonateur ou pour les fils électriques
A glueless optical device includes a housing having a first optical portal and a second optical portal opposite the first optical portal. A first optical component is within the housing adjacent to the first optical portal, and a second optical component is within the housing adjacent to the second optical portal. A central optical component is positioned within the housing between the first optical component and the second optical component. A first holder is configured to mount the first optical component to the housing via a first plate spring, and a second holder is configured to mount the second optical component to the housing via a second plate spring. A construct having a coil spring at least partially wrapped around a cylindrical crystal is configured to pass through a bore hole in the central optical component and mount the central optical component between the first holder and the second holder.
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
G02B 7/00 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques
63.
LUMINAIRE WITH INDEPENDENTLY-CONTROLLABLE FOCUS-TUNABLE LENSES
A luminaire includes multiple light emitting cells. Each light emitting cell has a light source, and a focus-tunable lens (e.g., a liquid lens) associated with the light source. Each respective one of the light emitting cells is independently controllable relative to the one or more other light emitting cells. In a typical implementation, the control of each light emitting cell may involve, for example, controlling a surface of liquid in the corresponding liquid lens.
F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
F21W 131/205 - Utilisation ou application des dispositifs ou des systèmes d'éclairage, non prévues dans les groupes Éclairage pour un usage médical pour les salles d'opération
F21Y 105/10 - Sources lumineuses planes comprenant un réseau bidimensionnel d’éléments générateurs de lumière ponctuelle
A laser sustained plasma lamp includes a mechanically sealed pressurized chamber assembly (330) configured to contain an ionizable material. The chamber assembly is bounded by a chamber tube (310), an ingress sapphire window (340), a first metal seal ring (320) configured to seal against the chamber tube ingress end and the ingress sapphire window, an egress sapphire window (342), and a second metal seal ring (322) configured to seal against the chamber tube egress end and the egress sapphire window. A mechanical clamping structure (350, 355) external to the chamber assembly is configured to clamp across at least a portion of the ingress sapphire window and the egress sapphire window. The ingress sapphire window and the egress sapphire window are not connected to the chamber tube via welding and/or brazing.
H05H 1/46 - Production du plasma utilisant des champs électromagnétiques appliqués, p.ex. de l'énergie à haute fréquence ou sous forme de micro-ondes
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
65.
Laser driven sealed beam lamp with improved stability
A sealed high intensity illumination device configured to receive a laser beam from a laser light source and method for making the same are disclosed. The device includes a sealed cylindrical chamber configured to contain an ionizable medium. The chamber has a cylindrical wall, with an ingress and an egress window disposed opposite the ingress window. A tube insert is disposed within the chamber formed of an insulating material. The insert is configured to receive the laser beam within the insert inner diameter.
H01J 61/10 - Blindage, écrans ou guides propres à influer sur la décharge
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
H01J 9/24 - Fabrication ou assemblage des enceintes, des conducteurs de traversée ou des culots
H01J 61/073 - Electrodes principales pour lampes à décharge à haute pression
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
H01J 61/40 - Dispositifs propres à modifier la couleur ou la longueur d'onde de la lumière par des revêtements en couleur dans ou sur l'enveloppe
H01J 61/28 - Moyens de production ou d'introduction du gaz ou de la vapeur dans l'enceinte ou de recharge de celle-ci en gaz ou en vapeur au cours du fonctionnement de la lampe
An endoscope has a cannula, one and only one translucent or transparent cover at a distal end of the cannula, a light source and imaging system, both inside the cannula. The light source delivers light into the cover. At least some of that light passes through the cover to illuminate an inspection site inside the patient's body; some of that light is internally reflected at an outer surface of the cover to travel back toward an inner surface of the cover. The imaging system receives the light that has been reflected off the inspection site and returned to the endoscope through the cover. The components are configured such that none of the light that is internally reflected at the outer surface of the cover reaches an optical input of the imaging system directly (e.g., without being further reflected).
A61B 1/00 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments
G02B 23/24 - Instruments pour regarder l'intérieur de corps creux, p.ex. endoscopes à fibres
67.
ELECTRODELESS SINGLE LOW POWER CW LASER DRIVEN PLASMA LAMP
An ignition facilitated electrodeless sealed high intensity illumination device is configured to receive a laser beam from a continuous wave (CW) laser light source. A sealed chamber is configured to contain an ionizable medium. The chamber has an ingress window disposed within a wall of a chamber interior surface configured to admit the laser beam into the chamber, a plasma sustaining region, and a high intensity light egress window configured to emit high intensity light from the chamber. The CW laser beam is producible by a CW laser below 250 Watts configured to produce a wavelength below 1100 nm. The device is configured to focus the laser beam to a full width at half maximum (FWHM) beam waist of 1-15 microns2 and a Rayleigh length of 6 microns or less, and the plasma is configured to be ignited by the CW laser beam.
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
H01J 61/02 - Lampes à décharge dans un gaz ou dans une vapeur - Détails
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
H05G 2/00 - Appareils ou procédés spécialement adaptés à la production de rayons X, n'utilisant pas de tubes à rayons X, p.ex. utilisant la génération d'un plasma
68.
APPARATUS AND A METHOD FOR OPERATING A VARIABLE PRESSURE SEALED BEAM LAMP
An apparatus and a method for operating a sealed high intensity illumination lamp configured to receive a laser beam from a laser light source. The lamp includes a sealed chamber configured to contain an ionizable medium having a plasma sustaining region, and a plasma ignition region. A high intensity light egress window emits high intensity light from the chamber. A substantially flat ingress window located within a wall of the chamber admits the laser beam into the chamber. The lamp includes means for controlled increasing and decreasing a pressure level within the sealed chamber while the lamp is producing the high intensity illumination.
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
H01J 61/02 - Lampes à décharge dans un gaz ou dans une vapeur - Détails
H01J 61/28 - Moyens de production ou d'introduction du gaz ou de la vapeur dans l'enceinte ou de recharge de celle-ci en gaz ou en vapeur au cours du fonctionnement de la lampe
A frequency swept laser source for TEFD-OCT imaging includes an integrated clock subsystem on the optical bench with the laser source. The clock subsystem generates frequency clock signals as the optical signal is tuned over the scan band. Preferably the laser source further includes a cavity extender in its optical cavity between a tunable filter and gain medium to increase an optical distance between the tunable filter and the gain medium in order to control the location of laser intensity pattern noise. The laser also includes a fiber stub that allows for control over the cavity length while also controlling birefringence in the cavity.
H01S 3/106 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation par commande de dispositifs placés dans la cavité
H01S 5/068 - Stabilisation des paramètres de sortie du laser
Optical coherence tomography (OCT) probe and system designs are disclosed that minimize the effects of mechanical movement and strain to the probe to the OCT analysis. It also concerns optical designs that are robust against noise from the OCT laser source. Also integrated OCT system-probes are included that yield compact and robust electro-opto-mechanical systems along with polarization sensitive OCT systems.
The invention is directed to a sealed high intensity illumination device configured to receive a laser beam from a laser light source. A sealed chamber is configured to contain an ionizable medium. The chamber includes a reflective chamber interior surface having a first parabolic contour and parabolic focal region, a second parabolic contour and parabolic focal region, and an interface surface. An ingress surface is disposed within the interface surface configured to admit the laser beam into the chamber, and an egress surface disposed within the interface surface configured to emit high intensity light from the chamber. The first parabolic contour is configured to reflect light from the first parabolic focal region to the second parabolic contour, and the second parabolic contour is configured to reflect light from the first parabolic contour to the second parabolic focal region.
H01J 61/33 - Enceintes; Récipients dont la section transversale présente une forme particulière, p.ex. pour produire une tache froide
H01J 61/35 - Enceintes; Récipients pourvus de revêtements sur leurs parois; Emploi de matériaux spécifiés pour les revêtements
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
H01J 61/24 - Moyens pour obtenir ou conserver la pression désirée à l'intérieur de l'enceinte
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
Produits et services
Analogue low-light-level detection module featuring Silicon Avalanche Photodiodes for ultraviolet, visible and near infrared wavelength detection for use in scientific research, analytical instrumentation, fluorescence measurement, distributed temperature sensing, distributed optical sensing, laser range finding, LIDAR apparatus, Laser scanning ophthalmology and confocal laser endomicroscopy for laboratory research use; integrated hermetic Avalanche photodiodes Transistor Outline (TO) Package Types, mounted on practical original equipment manufacturer-based printed circuit boards featuring high-voltage power supplies, temperature controls, low noise transimpedance amplifiers, APD bias monitors, and micro controllers Analogue low-light-level detection module featuring Silicon Avalanche Photodiodes for ultraviolet, visible and near infrared wavelength detection for use in laser scanning ophthalmology and confocal laser endomicroscopy for diagnostic or medical therapeutic use
H01J 61/02 - Lampes à décharge dans un gaz ou dans une vapeur - Détails
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Tunable Laser-devices, namely, laser modules and diodes emitting at least one beam of tunable wavelength and of a wavelength selectable from a range of wavelengths for mass spectrometry, material testing, spectroscopy, trace gas sensing and metrology; Laser modules and diodes containing non-linear frequency conversion with optical-parametric-oscillation for mass spectrometry, material testing, spectroscopy, trace gas sensing and metrology; Non-linear frequency conversion including optical-parametric-oscillation module, namely a module containing a nonlinear optical element converting the wavelength of at least one input laser beam to at least one output beam of tunable wavelength or of a wavelength selectable from a range of wavelengths for mass spectrometry, material testing, spectroscopy, trace gas sensing and metrology; laser system containing a tunable laser module and diode for mass spectrometry, material testing, spectroscopy, trace gas sensing and metrology; laser system containing a non-linear frequency conversion module for mass spectrometry, material testing, spectroscopy, trace gas sensing and metrology; laser modules and diodes for non-medical applications, namely laser modules and diodes for metrology applications; laser modules and diodes for spectroscopic applications; laser modules and diodes for spectral scanning applications; laser modules and diodes for trace gas sensing applications;
(2) Tunable laser modules and diodes for medical use; tunable laser modules and diodes for analysis and diagnostics in the fields of medicine, medical research and medical instrumentation; Non-linear frequency conversion namely, optical-parametric-oscillation module for medical use; non-linear frequency conversion namely, optical-parametric-oscillation module for analysis and diagnostics in the fields of medicine, medical research and medical instrumentation; Laser modules and diodes containing non-linear frequency conversion namely, optical-parametric-oscillation for medical use; Laser modules and diodes containing non-linear frequency conversion namely, optical-parametric-oscillation for analysis and diagnostics in the fields of medicine, medical research and medical instrumentation (1) Consultancy, design, development and research services in the field of tunable Laser modules and diodes, Laser modules and diodes containing non-linear frequency conversion namely, optical-parametric-oscillation, Non-linear frequency conversion namely, optical-parametric-oscillation modules
77.
Apparatus and a method for operating a variable pressure sealed beam lamp
An apparatus and a method for operating a sealed high intensity illumination lamp configured to receive a laser beam from a laser light source. The lamp includes a sealed chamber configured to contain an ionizable medium having a plasma sustaining region, and a plasma ignition region. A high intensity light egress window emits high intensity light from the chamber. A substantially flat ingress window located within a wall of the chamber admits the laser beam into the chamber. The lamp includes means for controlled increasing and decreasing a pressure level within the sealed chamber while the lamp is producing the high intensity illumination.
H01J 17/26 - Moyens de production, d'introduction ou de remplissage de gaz ou de vapeur au cours du fonctionnement du tube
H01J 61/24 - Moyens pour obtenir ou conserver la pression désirée à l'intérieur de l'enceinte
H01J 61/35 - Enceintes; Récipients pourvus de revêtements sur leurs parois; Emploi de matériaux spécifiés pour les revêtements
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
H01J 61/02 - Lampes à décharge dans un gaz ou dans une vapeur - Détails
H01J 61/26 - Moyens d'absorption ou d'adsorption du gaz, p.ex. par un getter; Moyens pour empêcher le noircissement de l'enveloppe
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Tunable Laser-devices, namely, laser-devices emitting at least one beam of tunable wavelength or of a wavelength selectable from a range of wavelengths; Laser-apparatus containing non-linear frequency conversion (including optical-parametric-oscillation); Non-linear frequency conversion (including optical-parametric-oscillation) module, namely a module containing a nonlinear optical element converting the wavelength of at least one input laser beam to at least one output beam of tunable wavelength or of a wavelength selectable from a range of wavelengths; apparatus containing a tunable laser device; apparatus containing a non-linear frequency conversion module; laser-device for non-medical applications, laser-device for metrology applications; laser-device for spectroscopic applications; laser-device for spectral scanning applications; laser-device for trace gas sensing applications. Tunable laser-devices for medical use; tunable laser-devices for analysis and diagnostics; Non-linear frequency conversion (including optical-parametric-oscillation) module for medical use; non-linear frequency conversion (including optical-parametric-oscillation) module for analysis and diagnostics; Laser-apparatus containing non-linear frequency conversion (including optical-parametric-oscillation) for medical use; Laser-apparatus containing non-linear frequency conversion (including optical-parametric-oscillation) for analysis and diagnostics. Consultancy, design, development and research services relating to tunable Laser-devices, Laser-apparatus containing non-linear frequency conversion (including optical-parametric-oscillation), Non-linear frequency conversion (including optical-parametric-oscillation) modules.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Tunable Laser-devices, namely, laser-devices emitting at least one beam of tunable wavelength or of a wavelength selectable from a range of wavelengths not for medical use; Laser-apparatus containing non-linear frequency conversion including optical-parametric-oscillation, not for medical use; Non-linear frequency conversion module not for medical use, including optical-parametric-oscillation, namely, a module containing a nonlinear optical element converting the wavelength of at least one input laser beam to at least one output beam of tunable wavelength or of a wavelength selectable from a range of wavelengths; laser device containing a tunable laser for providing illumination and excitation in trace-gas analysis, spectroscopy, metrology, detector calibration, mass spectrometry, and material specification tests; laser device containing a nonlinear frequency conversion module for providing illumination and excitation in trace-gas analysis, spectroscopy, metrology, detector calibration, mass spectrometry, and material specification tests; laser-device for non-medical applications, laser-device for metrology applications; laser-device for spectroscopic applications; laser-device for spectral scanning applications; laser-device for trace gas sensing applications
80.
Apparatus and a method for operating a sealed beam lamp containing an ionizable medium
An apparatus and a method for operating a sealed beam lamp containing an ionizable medium are disclosed. The lamp includes a sealed chamber, a pair of ignition electrodes, a substantially flat chamber ingress window, and a laser light source disposed outside the chamber producing laser light. Laser light is focused to a first focal region coinciding with an ignition region disposed between the ignition electrodes. The ionizable medium at the ignition region is ignited with the laser. The laser light is focused to a second focal region coinciding with a plasma sustaining region not co-located with the plasma ignition region.
H05G 2/00 - Appareils ou procédés spécialement adaptés à la production de rayons X, n'utilisant pas de tubes à rayons X, p.ex. utilisant la génération d'un plasma
H01J 61/26 - Moyens d'absorption ou d'adsorption du gaz, p.ex. par un getter; Moyens pour empêcher le noircissement de l'enveloppe
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
H01J 61/36 - Joints étanches entre éléments d'enceinte; Scellements des conducteurs de traversée; Conducteurs de traversée
H01J 61/02 - Lampes à décharge dans un gaz ou dans une vapeur - Détails
H01J 61/24 - Moyens pour obtenir ou conserver la pression désirée à l'intérieur de l'enceinte
H01J 61/33 - Enceintes; Récipients dont la section transversale présente une forme particulière, p.ex. pour produire une tache froide
H01J 61/35 - Enceintes; Récipients pourvus de revêtements sur leurs parois; Emploi de matériaux spécifiés pour les revêtements
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
81.
Laser driven sealed beam lamp with improved stability
A sealed high intensity illumination device configured to receive a laser beam from a laser light source and method for making the same are disclosed. The device includes a sealed cylindrical chamber configured to contain an ionizable medium. The chamber has a cylindrical wall, with an ingress and an egress window disposed opposite the ingress window. A tube insert is disposed within the chamber formed of an insulating material. The insert is configured to receive the laser beam within the insert inner diameter.
H01J 61/10 - Blindage, écrans ou guides propres à influer sur la décharge
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
H01J 9/24 - Fabrication ou assemblage des enceintes, des conducteurs de traversée ou des culots
H01J 61/073 - Electrodes principales pour lampes à décharge à haute pression
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
H01J 61/40 - Dispositifs propres à modifier la couleur ou la longueur d'onde de la lumière par des revêtements en couleur dans ou sur l'enveloppe
H01J 61/28 - Moyens de production ou d'introduction du gaz ou de la vapeur dans l'enceinte ou de recharge de celle-ci en gaz ou en vapeur au cours du fonctionnement de la lampe
An ignition facilitated electrodeless sealed high intensity illumination device is disclosed. The device is configured to receive a laser beam from a continuous wave (CW) laser light source. A sealed chamber is configured to contain an ionizable medium. The chamber has an ingress window disposed within a wall of a chamber interior surface configured to admit the laser beam into the chamber, a plasma sustaining region, and a high intensity light egress window configured to emit high intensity light from the chamber. A path of the CW laser beam from the laser light source through the ingress window to a focal region within the chamber is direct. The ingress window is configured to focus the laser beam to within a predetermined volume, and the plasma is configured to be ignited by the CW laser beam, optionally by heating of a non-electrode ignition agent located entirely within the chamber.
H01J 61/02 - Lampes à décharge dans un gaz ou dans une vapeur - Détails
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
An ignition facilitated electrodeless sealed high intensity illumination device is disclosed. The device is configured to receive a laser beam from a continuous wave (CW) laser light source. A sealed chamber is configured to contain an ionizable medium. The chamber has an ingress window disposed within a wall of a chamber interior surface configured to admit the laser beam into the chamber, a plasma sustaining region, and a high intensity light egress window configured to emit high intensity light from the chamber. A path of the CW laser beam from the laser light source through the ingress window to a focal region within the chamber is direct. The ingress window is configured to focus the laser beam to within a predetermined volume, and the plasma is configured to be ignited by the CW laser beam, optionally by heating of a non-electrode ignition agent located entirely within the chamber.
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
H01J 61/02 - Lampes à décharge dans un gaz ou dans une vapeur - Détails
A sealed high intensity illumination device (400) configured to receive a laser beam from a laser light source and method for making the same are disclosed. The device includes a sealed chamber (420) configured to contain an ionizable medium. The chamber may have a cylindrical wall (421) with an ingress and an egress window (426, 428) disposed opposite the ingress window. A fill portion (435) of e.g. nickel-cobalt ferrous alloy and/or an insulating tube insert may be disposed within the chamber.
H01J 61/10 - Blindage, écrans ou guides propres à influer sur la décharge
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
A microelectromechanical systems (MEMS)-tunable vertical-cavity surface-emitting laser (VCSEL) in which the MEMS mirror is bonded to the active region. This allows for a separate electrostatic cavity that is outside the laser's optical resonant cavity. Moreover, the use of this cavity configuration allows the MEMS mirror to be tuned by pulling the mirror away from the active region. This reduces the risk of snap down. Moreover, since the MEMS mirror is now bonded to the active region, much wider latitude is available in the technologies that are used to fabricate the MEMS mirror. This is preferably deployed as a swept source in an optical coherence tomography (OCT) system.
H01S 5/183 - Lasers à émission de surface [lasers SE], p.ex. comportant à la fois des cavités horizontales et verticales comportant uniquement des cavités verticales, p.ex. lasers à émission de surface à cavité verticale [VCSEL]
H01S 5/068 - Stabilisation des paramètres de sortie du laser
H01L 33/00 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails
A frequency swept laser source for TEFD-OCT imaging includes an integrated clock subsystem on the optical bench with the laser source. The clock subsystem generates frequency clock signals as the optical signal is tuned over the scan band. Preferably the laser source further includes a cavity extender in its optical cavity between a tunable filter and gain medium to increase an optical distance between the tunable filter and the gain medium in order to control the location of laser intensity pattern noise. The laser also includes a fiber stub that allows for control over the cavity length while also controlling birefringence in the cavity.
H01S 3/08 - Structure ou forme des résonateurs optiques ou de leurs composants
H01S 3/106 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation par commande de dispositifs placés dans la cavité
H01S 5/068 - Stabilisation des paramètres de sortie du laser
A detonator comprised of a conductive bridge, an inert flying plate, a barrel connector and a compacted explosive, all of which are contained in a hermetically sealed package
A base assembly for a flash lamp is disclosed. The base assembly has an integrated sparker and includes an electrically conductive header having a surface that defines a boundary of a flash chamber for the flash lamp. There is an opening in the surface of the electrically conductive header and an electrically conductive lead within the opening. The electrically conductive lead is electrically insulated from surrounding portions of the electrically conductive header. A distal end of the electrically conductive lead is substantially flush with the surface of the electrically conductive header.
H01J 17/18 - Joints étanches entre éléments d'enceinte; Scellements des conducteurs de traversée; Conducteurs de traversée
H01J 61/90 - Lampes conçues pour un fonctionnement exclusivement intermittent, p.ex. lampe-éclair
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
The invention is directed to a sealed high intensity illumination device configured to receive a laser beam from a laser light source. A sealed chamber is configured to contain an ionizable medium. The chamber includes a reflective chamber interior surface having a first parabolic contour and parabolic focal region, a second parabolic contour and parabolic focal region, and an interface surface. An ingress surface is disposed within the interface surface configured to admit the laser beam into the chamber, and an egress surface disposed within the interface surface configured to emit high intensity light from the chamber. The first parabolic contour is configured to reflect light from the first parabolic focal region to the second parabolic contour, and the second parabolic contour is configured to reflect light from the first parabolic contour to the second parabolic focal region.
H01J 61/02 - Lampes à décharge dans un gaz ou dans une vapeur - Détails
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
09 - Appareils et instruments scientifiques et électriques
Produits et services
Microscope systems and components thereof, namely, microscopes, light/power supplies, control boxes, binocular optical assemblies, objective lenses, laser sources, polarizers and support stands.
92.
Real time FPGA resampling for swept source optical coherence tomography
Real-time swept source OCT data is most often sampled using a specially cut hardware k-clock. The present invention involves mathematically resampling signals within an FPGA-based data acquisition board based on data sampled from a wide free spectral range reference interferometer. The FPGA can then multiply up the reference clock rate to achieve greater imaging depth. The Nyquist fold-over depth can thus be programmed from a standard reference to an arbitrary depth, much as PLL frequency synthesizer can produce many frequencies from a standard stable reference. The system is also capable of real-time performance.
A method and apparatus for a sealed high intensity illumination device are disclosed. The device is configured to receive a laser beam from a laser light source. The device has a sealed chamber configured to contain an ionizable medium. The chamber has a substantially flat ingress window disposed within a wall of the integral reflective chamber interior surface configured to admit the laser beam into the chamber, a plasma sustaining region, a plasma ignition region, and a high intensity light egress window configured to emit high intensity light from the chamber. The chamber has an integral reflective chamber interior surface configured to reflect high intensity light from the plasma sustaining region to the egress window. There is a direct path of the laser beam from the laser light source through the lens and ingress window to the lens focal region.
H01J 5/16 - Dispositifs optiques ou photographiques combinés structuralement avec l'enceinte
H01J 61/02 - Lampes à décharge dans un gaz ou dans une vapeur - Détails
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
A method and apparatus for a sealed high intensity illumination device are disclosed. The device is configured to receive a laser beam from a laser light source. The device has a sealed chamber configured to contain an ionizable medium. The chamber has a substantially flat ingress window disposed within a wall of the integral reflective chamber interior surface configured to admit the laser beam into the chamber, a plasma sustaining region, a plasma ignition region, and a high intensity light egress window configured to emit high intensity light from the chamber. The chamber has an integral reflective chamber interior surface configured to reflect high intensity light from the plasma sustaining region to the egress window. There is a direct path of the laser beam from the laser light source through the lens and ingress window to the lens focal region.
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
H01J 61/33 - Enceintes; Récipients dont la section transversale présente une forme particulière, p.ex. pour produire une tache froide
H01J 61/35 - Enceintes; Récipients pourvus de revêtements sur leurs parois; Emploi de matériaux spécifiés pour les revêtements
95.
System and method for resampling optical coherence tomography signals in segments
A system and method for resampling interference datasets of samples in segments, in a swept-source based Optical Coherence Tomography (OCT) system. The resampling is preferably performed within a Field Programmable Gate Array (FPGA) of the OCT system, the FPGA preferably having Fourier-transform based signal processing capabilities such as Fast Fourier Transform (FFT) cores. Resampling the interference datasets in segments provides a flexible approach to resampling that makes efficient use of system resources such as FFT cores. By resampling the interference datasets in segments, the system adjusts to an increased number of resampling points as the imaging depth upon the sample increases. The OCT system then combines the segments using overlapping values of the resampling points between adjacent resampling regions of the resampled segments, and performs Fourier Transform based post-processing on the combined segments to obtain axial profiles of the sample at desired imaging depths.
09 - Appareils et instruments scientifiques et électriques
Produits et services
microscope systems and components thereof, namely, microscopes, light/power supplies, control boxes, binocular optical assemblies, objective lenses, laser sources, polarizers and support stands
97.
Spectral filtering of k-clock signal in OCT system and method
A system and method for spectral filtering of a k-clock signal in a swept-source Optical Coherence Tomography (“OCT”) system to remove artifacts in the k-clock signal. The system synchronizes sampling of the k-clock and interference signals generated from scanning a sample. Using a filtered k-clock signal, the system resamples an interference dataset of the interference signals. The system then performs Fourier transform based processing upon the resampled interference dataset to yield axial depth images of the sample. The system preferably performs the reconstruction, resampling, and associated Fourier-Domain signal processing in software via a Field Programmable Gate Array (“FPGA”) of a rendering system.
An optical coherence tomography system utilizes an optical swept laser that has improved coherence length in the swept optical signal. This is accomplished using an intra-cavity element that extracts the tunable optical signal at the optimal location within the laser's resonant cavity. Generally this location is between the intracavity tuning element and the cavity's gain element so that light coming from the tuning element is extracted. In general in lasers, the gain element adds noise and chirp and this degrades the tunable optical signal's coherence length.
H01S 3/106 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation par commande de dispositifs placés dans la cavité
An optical coherence analysis system uses a laser swept source that is constrained to operate in a stable mode locked condition by modulating a drive current to the semiconductor optical amplifier as function of wavelength or synchronously with the drive voltage of the laser's tunable element based on stability map for the laser.
H01S 5/10 - Structure ou forme du résonateur optique
H01S 5/30 - Structure ou forme de la région active; Matériaux pour la région active
H01S 3/105 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation par commande de la position relative ou des propriétés réfléchissantes des réflecteurs de la cavité
100.
Dielectric-enhanced metal coatings for MEMS tunable filters
The present invention concerns the use of hybrid metal-dielectric optical coatings as the end reflectors of laser cavities and/or in the mirror structures used in other optical resonators, such as Fabry-Perot tunable filters, along with the use of such Fabry-Perot tunable filters in wavelength swept sources such as lasers. Hybrid metal-dielectric optical coatings have reflectivity spectra that can be broader than pure dielectric coatings, offer optical reflectivities higher than metal, as high as pure dielectric coatings, eliminate mirror transmission that can cause parasitic light reflections, and use fewer layers and thus have lower mass and higher mechanical resonant frequency for movable mirror applications An important characteristic of these coatings concerns the non-reflected light. Pure dielectric coatings offer high reflectivity, while the non-reflected portion of the light is transmitted by the coating to the substrate, for example. When metal is added to the optical coating, the non-reflected portion of the light is absorbed by the metal and is not transmitted to the substrate or outside the cavity. Hybrid metal-dielectric coatings have broader and more uniform spectral reflection. Tunable lasers with performance enhanced by the hybrid metal-dielectric coatings can be used in optical coherence tomography and spectroscopic analysis applications.
G02B 26/02 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander l'intensité de la lumière
G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables
G01J 3/26 - Production du spectre; Monochromateurs en utilisant une réflexion multiple, p.ex. interféromètre de Fabry-Perot, filtre à interférences variables
H01S 3/08 - Structure ou forme des résonateurs optiques ou de leurs composants
H01S 3/105 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation par commande de la position relative ou des propriétés réfléchissantes des réflecteurs de la cavité
