Provided is an ophthalmological device which makes it possible to objectively know the positional relationship between an eye to be examined and an acquisition optical system even when the face of a subject is fixed to a head section. The ophthalmological device (10) is provided with: a pair of acquisition optical systems (measurement optical systems 20) for the acquisition of eye information about both eyes E to be examined; an optical system changing mechanism (measurement head driving section 15) which changes at least one of the position and the direction of the pair of acquisition optical systems (measurement optical systems 20); and a control section (27) which generates a positional relationship image Ip that shows the positional relationship of the pair of acquisition optical systems (measurement optical systems 20) relative to the pair of eyes E to be examined on the basis of optical posture information showing the position or direction of the pair of acquisition optical systems (measurement optical systems 20) which has been preset by the optical system changing mechanism (measurement head driving section 15) and eye positional information showing the position of the eyes E to be examined, and then displays the positional relationship image Ip on a display section (34).
A61B 3/08 - Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing binocular or stereoscopic vision, e.g. strabismus
The present invention is provided with: a distance-measurement light emission unit (23) which emits distance-measurement light onto a measurement subject; a distance-measurement light reception unit (24) which has a light reception element for receiving reflected distance-measurement light from the measurement subject; a tracking-light emission unit (25) which emits tracking light onto the measurement subject on the same axis as the distance-measurement light; a tracking-light reception unit which has a tracking-light reception element for receiving reflected tracking light that is incident on the same axis as the reflected distance-measurement light; and a calculation control unit (17) which calculates the distance to the measurement subject on the basis of the light reception result of the reflected distance-measurement light on the light reception element, and which tracks the measurement subject on the basis of the light reception result of the reflected tracking light on the tracking-light reception element. The distance-measurement light reception unit and the tracking-light reception unit include a light reception prism that causes the reflected distance-measurement light and the reflected tracking light to be internally reflected multiple times, at least one chamfered portion is formed on a corner portion of said light reception prism located outside the optical path of the reflected tracking light, and the chamfered portion is subjected to an anti-reflection process.
In this rotary operation type inertial detecting device an inertial detecting unit (4) is provided inside an inner frame, the inner frame is supported in an outer frame by means of a first shaft (5), the inertial detecting unit is supported in the inner frame by means of a second shaft (7) perpendicular to the first shaft, the first shaft is provided with a first encoder (12), the second shaft is provided with a second encoder (17), the rotary operation type inertial detecting device is equipped with rotational motive forces provided on each shaft, and an arithmetic processing unit (19) for controlling the rotational motive forces on the basis of a detection result from the inertial detecting unit, and the arithmetic processing unit is configured to: associate a signal emitted by the inertial detecting unit with outputs of the first encoder and the second encoder; cause the inertial detecting unit to rotate continuously about the second shaft; calculate a horizontal angle of rotation of the inner frame and an angle of rotation of the second shaft relative to the horizontal, from a detected signal from the inertial detecting unit; cause the inner frame to perform a rotational movement through 180° at least once about the first shaft; and detect an angle of inclination relative to vertical and a horizontal angle of rotation of the outer frame.
The present invention comprises: an inner frame (3) that is provided with an inertia sensor unit (4) and is rotatably supported by an outer frame (2); a twin inertia sensor unit having two inertia detection sensors; a first encoder (12) that detects a rotation angle between the outer frame and the inner frame; and a second encoder (17) that detects a rotation angle between the inner frame and the twin inertia sensor unit. The signal emitted by the twin inertia sensor unit and the outputs of the first encoder and the second encoder are associated. The twin inertia sensor unit is continuously rotated. A horizontal rotation angle and a rotation angle with respect to the horizontal of the inner frame are calculated from a detection signal of the twin inertia sensor unit based on an angle of the second encoder. The inner frame is inversely rotated by at least 180° or by one full rotation. A horizontal rotation angle and a vertical angle with respect to the vertical of the outer frame are detected.
An ophthalmologic apparatus includes a target projection system that presents an eye chart to a subject eye, an objective measurement optical system that objectively measures an eye characteristic of the subject eye, and a control portion that controls the target projection system and the objective measurement optical system, wherein the control portion presents the target for a predetermined time at a predetermined presentation position with the target projection system, and objectively measures the eye characteristic with the objective measurement optical system in a time series to control an operation of each portion based on a measurement result of the objective measurement.
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
Provided is a new survey system capable of quickly locking on a target by a simple operation. The survey system includes a surveying instrument including an imaging unit configured to acquire an image in front of a telescope, a controller 80 including a GNSS device and configured to remotely operate the surveying instrument, and a target unit including a target and an optical transmitter, and based on position information acquired by the GNSS device in the vicinity of the target unit, the surveying instrument is rotated toward the GNSS device, images when the optical transmitter turns on light and turns off light are acquired by the imaging unit, and based on a difference image between the images, the surveying instrument is rotated toward the optical transmitter, scans the periphery by the tracking unit, and is locked on to the target.
A surveying instrument having a tracking function with a measure against sunlight is provided which includes a tracking unit and a distance-measuring unit, a driving unit, an imaging device, a filter switching device configured to make switching so that either of two filters is selectively disposed on an optical axis of the imaging device, and a control unit configured to, when the imaging device acquires an image including tracking guide light, analyze the image and operate an arrival direction of the tracking guide light, and control the driving unit so that a collimation axis is directed toward the arrival direction of the tracking guide light, wherein one filter of the two filters is a tracking guide light filter configured to transmit only wavelengths in a predetermined range centered on a wavelength of the tracking guide light.
A variable magnification optical component and an ophthalmic apparatus having a simpler mechanism and requiring a small space are provided. The variable magnification optical component includes an optical path, and a power changer, disposed rotatably with respect to an optical axis of the optical path. The power changer is configured to be removably inserted into the optical path, in which the power changer includes: multiple lenses for varying power and a light beam passage hole configured not to interfere with the lenses. In a first configuration of the variable magnification optical component, the power changer is inclined at a predetermined angle, such that the lenses are retracted outside the optical path, and the optical path passes through the light beam passage hole. In a second configuration of the variable magnification optical component, the power changer is restored and the lenses are positioned on the optical path.
G02B 15/04 - Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
9.
BAR ARRANGEMENT INSPECTION SYSTEM AND BAR ARRANGEMENT INSPECTION METHOD
A bar arrangement inspection system includes a scanner for acquiring three-dimensional point cloud data of an inspection range, a camera for acquiring image data of the inspection range, a processor, and three-dimensional bar arrangement design data of the inspection range, the processor is configured to receive the three-dimensional point cloud data of the inspection range from the scanner and the image data of the inspection range from the camera, generate a point cloud composite image by combining the three-dimensional point cloud data with the image data, identify a bar arrangement state and positions of reinforcing bars included in the point cloud composite image, and by comparing the point cloud composite image with the three-dimensional bar arrangement design data, generate three-dimensional bar arrangement state inspection result data, and output the bar arrangement state inspection result data in such a manner that the bar arrangement error is visually identifiable.
A bar arrangement inspection result display system includes a surveying instrument, an eyewear display device including a display, a relative position sensor and a relative direction sensor, and a processor for manage coordinate spaces of the eyewear display device and the surveying instrument in a space with an origin set at a common reference point. The processor is configured to generate a three-dimensional model of a bar arrangement inspection range based on three-dimensional point cloud data of the inspection range, generate three-dimensional inspection result display data by associating bar arrangement inspection result data of the inspection range in which detail and position of bar arrangement error are associated with each other with the three-dimensional model, and display three-dimensional inspection result image by superimposing on actual objects observed with the eyewear display device in such a manner that the bar arrangement error is recognizable.
[Problem] To set scanning conditions appropriate for laser scanning. [Solution] A laser scanning device 200 that performs laser scanning using laser scanning light, wherein the distances from the laser scanning device 200 to target reflecting prisms 300 and 400 are acquired, and conditions for acquiring laser scanning data limited to the reflecting prisms 300 and 400 are set. At this time, the laser scanning data limited to the reflecting prisms 300 and 400 are laser scanning data in a specific angular range seen from the laser scanning device 200, and this specific angular range is set to be relatively narrow when the distance is relatively large, and set to be relatively wide when the distance is relatively small.
This ophthalmic device includes a measurement optical system, an acquisition unit, a control unit, and a calculation unit. The measurement optical system includes a focusing lens. The measurement optical system measures the wavefront aberration of an eye under examination in which an intraocular lens is to be placed, and acquires a Hartmann image. The acquisition unit acquires at least intraocular lens information representing the optical characteristics of the intraocular lens. The control unit moves the focusing lens to a position corresponding to the focal length of the intraocular lens, the focal length being determined on the basis of the intraocular lens information, and causes a Hartmann image to be acquired by the measurement optical system. The calculation unit calculates, on the basis of the Hartmann image, the refractive power of the eye under examination, using a computation process method corresponding to the intraocular lens information.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/11 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for measuring interpupillary distance or diameter of pupils
This measuring device comprises a distance measurement light emitting unit (23) for emitting distance measurement light (32) toward a measurement target object, a distance measurement light receiving unit (24) including a light receiving element (34) for receiving reflected distance measurement light (39) from the measurement target object, and an arithmetic control unit for controlling the distance measurement light emitting unit and for calculating a distance to the measurement target object on the basis of a light reception result of the reflected distance measurement light with respect to the light receiving element, wherein: the distance measurement light receiving unit includes a wavelength selecting unit (35) provided on an optical axis of the reflected distance measurement light; and the wavelength selecting unit includes a wavelength-selective film having a film thickness that increases in accordance with an increase in an angle of incidence of the reflected distance measurement light with respect to the wavelength selecting unit.
The present invention is provided with: a distance measurement unit (2) that emits distance measurement light (21) and receives reflected distance measurement light (22) from an object under measurement to measure distance; an optical axis deflection unit (9) that is provided on a reference optical axis of the distance measurement unit and that deflects the distance measurement light; an optical axis motor driver (8) that drives the optical axis deflection unit; an attitude detection device (6); a measurement direction detection unit (7) for detecting the direction of emission of the distance measurement light with respect to the reference optical axis; a storage unit (5); and a computation control unit (4) for performing synchronous control of the distance measurement unit, the attitude detection device, and the optical axis deflection unit. The optical axis defection unit is provided with a pair of disc prisms (17, 18) constituted from optical prisms. The computation control unit is configured to drive the optical axis deflection unit via the optical axis deflection motor driver, and scan the distance measurement light at a prescribed scan pattern as well as rotate one of the disc prisms in reverse with respect to the other disc prism so as to prevent the Coriolis force from acting.
The present invention pertains to a polygon mirror, a light transmitter, and a surveying system that facilitates automatic collimation using a surveying device. Provided is a light transmitter comprising: a light source; an axicon lens into which light emitted by the light source enters, within which the light is converted into ring light, and from which the ring light is emitted; a twisted ring polygon mirror having a surface configured as a reflective surface, said twisted ring polygon mirror being formed into a ring shape by being subjected to rotary extrusion over 360° while being twisted at a prescribed angle, and assuming the shape of an n-cornered polygon in cross-section; and a rotary drive unit for rotatably driving the twist ring polygon mirror. The axis of rotation of the twist ring polygon mirror is set along the optical axis of the axicon lens. The ring light emitted from the axicon lens impinges on the rotationally driven twist ring polygon mirror, reflects off the reflective surface, and performs a vertical scan as a fan beam spreading 360° in top view.
Provided is a light transmitter that automatically directs a light transmission opening toward a surveying instrument. Provided is a light transmitter comprising a light transmitter main body for transmitting tracking guide light, a drive unit for driving the light transmitter main body in horizontal rotation, an inertial measurement device for measuring accelerations of the light transmitter main body in three axial directions, an angle detector for detecting an angle of rotation of the light transmitter main body, a light transmitter communication unit for transmitting and receiving information, and a light transmitter control unit for performing arithmetic processing of a measured value from the inertial measurement device and of the angle detector, control of the light transmitter communication unit, control of the transmission of the tracking guide light by the light transmitter main body, and control of the rotation of the drive unit, wherein the light transmitter control unit: receives a horizontal direction angle of the surveying instrument by means of the light transmitter communication unit, and calculates, as an angle, a difference between a light transmission direction of the tracking guide light and an azimuth angle to the surveying instrument, from the measured value from the inertial measurement device and a measured value from the angle detector; and rotationally drives the drive unit such that the light transmission direction of the tracking guide light faces the surveying instrument, and transmits the tracking guide light.
According to the present invention, a height difference between measurement points is measured using a laser receiver. A leveling system (1) comprises a rotating laser device (10) for emitting a laser beam (B) horizontally at a predetermined height (H) from a measurement reference point, and a laser receiver (20) for receiving the laser beam at a measurement point, wherein the laser receiver: is provided with a first vertical light receiving tube (23), a second vertical light receiving tube (25) and a horizontal light receiving tube (24) which are arranged in an H-shape and each of which comprises light receiving units disposed at both ends of a light guide, and an arithmetic processing unit (31) connected to the light receiving units; identifies a collision position (235) of the laser beam from light reception signals of the light receiving units; detects differential distances of the collision position from a central position, and detects whether each differential distance is on a plus side or a minus side of a boundary at a central position in the length of each light guide; and measures a height difference of the measurement point relative to the measurement reference point in accordance with a combination of the plus/minus of each differential distance of the first vertical light receiving tube, the second vertical light receiving tube, and the horizontal light receiving tube.
This laser receiver measures a machine height of a surveying instrument. A surveying system (1) comprises a rotating laser device (10) for outputting a laser beam (LB) horizontally at a height (H) from a measurement reference point (RP2), a surveying instrument (30) situated at another measurement reference point (RP1), and a laser receiver (20) fixed to a front surface of the surveying instrument, wherein the laser receiver: is provided with a first vertical light receiving tube (23), a second vertical light receiving tube (25) and a horizontal light receiving tube (24), in an H-shape, each comprising light receiving units at both ends of a light guide; identifies a collision position (235) of the laser beam from light reception signals of the light receiving units; detects differential distances from a central position, and whether each differential distance is on a plus side or a minus side of a boundary at the central position; and, in accordance with a combination of the plus/minus of each differential distance, measures a machine height (h) of the surveying instrument from a height (H) of the laser beam, a central separation difference (d1) between a light receiver center (RC) of the light receiver and a machine center (MC) of the surveying instrument, and the differential distances.
The present invention detects the inclination of a laser optical receiver. This leveling system (1) comprises: a rotary laser device (10) that emits a laser beam (B) horizontally at a prescribed height (H) from a measurement reference point; and a laser optical receiver (20) that receives the laser beam. The laser optical receiver comprises: a vertical optical receiving tube (23) and a horizontal optical receiving tube (24), each including optical receiving units disposed at both end sections of a light-guiding body; and a computation processing unit (31) that is connected to the optical receiving units. The computation processing unit: identifies an impact position (235) of the laser beam on the basis of optical receiving signals from the optical receiving units; calculates which side the impact position is on, with central positions along the length of the light-guiding bodies serving as boundaries, and calculates the differential distances of the impact position from the central positions; detects a longitudinal inclination (θ) of the optical receiver on the basis of the differential distance (Dv) for the vertical optical receiving tube; and detects a lateral inclination (δ) of the optical receiver on the basis of the differential distance (Dh) for the horizontal optical receiving tube.
G01C 9/06 - Electric or photoelectric indication or reading means
G01C 15/00 - Surveying instruments or accessories not provided for in groups
20.
POINT CLOUD INFORMATION GENERATING SYSTEM, POINT CLOUD INFORMATION GENERATING SYSTEM CONTROL METHOD, AND POINT CLOUD INFORMATION GENERATING SYSTEM CONTROL PROGRAM
The objective of the present invention is to provide a point cloud information generating system, etc., capable of simply and rapidly generating point cloud information relating to a desired target object, and capable of easily and rapidly modifying the point cloud information. A point cloud information generating system 500 comprises a point cloud information generating device 1 for generating three-dimensional point cloud information relating to a target object 600, and a cross-reality (XR) generating device 100 that can be worn by a user, wherein the XR generating device comprises, at least, an imaging unit 111a for acquiring imaging information corresponding to a line of sight of the user, and a display unit 113, and, on the basis of execution instruction information relating to the target object displayed on the display unit, generates three-dimensional point cloud information relating to the target object specified using the execution instruction information by the point cloud information generating device, and displays the generated three-dimensional point cloud information relating to the target object on the display unit together with the target object.
An ophthalmic apparatus includes an image acquisition unit configured to acquire an anterior segment image of a subject eye, an optotype projection system configured to present an optotype to the subject eye in at least two presentation positions different from each other, and a line-of-sight direction detection unit configured to extract a feature point from the anterior segment image that has been acquired by the image acquisition unit when the optotype has been presented in each of the at least two presentation positions, detect positional information on the anterior segment image of the feature point that has been extracted, and detect a line-of-sight direction of the subject eye on a basis of the positional information.
A61B 3/117 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes
A61B 3/08 - Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing binocular or stereoscopic vision, e.g. strabismus
A61B 3/14 - Arrangements specially adapted for eye photography
Automation of surveying operations is achieved. When surveying is performed by a surveying apparatus, acquisition of a surveying condition, acquisition of surveying data, acquisition of image data, and acquisition of environmental data are performed. These pieces of data are associated with each other and are stored as learning data. On the basis of this learning data, an AI-estimated model for estimating a surveying condition by using image data of a surveying target and environmental data of a surveying site, is generated.
Efficiency of operation related to acquisition of a tilt offset of a surveying apparatus is improved. A total station includes a tilt sensor, a tilt offset acquisition unit that acquires a tilt offset of the tilt sensor, a measurement unit that measures a variable value of a phenomenon that can cause the tilt offset to vary, and a determination unit that determines whether to acquire the tilt offset, based on output from the measurement unit.
This fundus imaging device includes two or more curved mirrors, an illumination optical system, an image sensor, and a control unit. The illumination optical system irradiates the fundus of an eye under examination with slit-shaped illumination light via the two or more curved mirrors, and illuminates the fundus while moving the illuminated region. The image sensor can be disposed at a fundus-conjugate position, which is substantially optically conjugate with the fundus, and receives return light from the eye under examination. The control unit controls at least the illumination optical system. The longitudinal direction of an image formed by the illumination light on the fundus is substantially parallel to a plane that includes two or more focal points of the two or more curved mirrors. The control unit controls the illumination optical system so that the abovementioned image moves in a direction intersecting the longitudinal direction on the fundus.
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
A61B 3/14 - Arrangements specially adapted for eye photography
The purpose of the present invention is to provide a measurement device that can be easily taken out from a storage case and that can prevent lower back pain or the like. The measurement device comprises: a measurement device body 2 having a laser light emitting unit for emitting laser light for measurement; a pedestal that supports the measurement device body 2 so as to be rotatable in the horizontal direction; and handles 70, 71 protruding from the measurement device body 2, wherein the handles 70, 71 each protrude to the back surface side along the radial direction from a horizontal direction center OP with respective angles θ1, θ2 in a range of 40-45 degrees to the left and right from the horizontal direction center OP in a state in which the measurement device body 2 is erected, such that wrists do not bend when the handles are gripped. A bulging part 80 that bulges most forward is formed on the front surface side of the measurement device body 2 on the side opposite to the handles 70, 71. In the erected state, the handles 70, 71 and batteries 38, 39 applying a voltage to the laser light emitting unit have different vertical positions as referenced to the bulging part 80.
[Problem] To enable acquisition of three-dimensional information obtained from a viewpoint on a construction machine. [Solution] This computing device: receives measurement data measured by tracking the position of a reflection prism 102 on a construction machine 100 equipped with a laser scanner 101 and the reflection prism 102 using a total station 200 of which the position and the attitude in a specific coordinate system are known; acquires a laser scan point cloud obtained by the laser scanner 101; transforms the coordinates of the laser scan point cloud to those in the specific coordinate system on the basis of the measurement data and the attitude of the laser scanner 200; detects a change on the time axis in point cloud data obtained through the coordinate transformation; and identifies the contents of the work being performed by the construction machine on the basis of the change on the time axis in the point cloud data.
This plant sensor is provided with: a light emitting unit (6) that emits a measuring beam (2) including at least two wavelengths at a prescribed spread angle; a receiving unit that acquires a reflected measuring beam from a measuring object by dividing the beam into two wavelengths; a wavelength selection member (8) that is provided on an optical path for at least one of the measuring beam and the reflected measuring beam and that extracts two wavelengths from the measuring beam and/or the reflected measuring beam; and a control unit (9) that calculates growing conditions of the measuring object on the basis of the quantity of the measuring beam and the quantity of the received reflected measuring beam at each of the wavelengths. The wavelength selection member is configured to have a wavelength selection film (25) having formed, on the entry surface and/or the emission surface, a recess section (27), the thickness of which increases in response to an increase in the entry angle of the measuring beam or the reflected measuring beam with respect to the the wavelength selection member.
G01N 21/27 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
This plant sensor comprises: a first light-emitting unit (5) which emits, at a prescribed spread angle, first measurement light (21) including a first wavelength band; a second light-emitting unit (6) which emits, at a prescribed spread angle, second measurement light (25) including a second wavelength band; at least one light reception unit (7) which receives first reflected measurement light and second reflected measurement light from an object to be measured; wavelength selection members (8, 9) which extract the first wavelength band and the second wavelength band from at least one of each of the first and second measurement light and each of the first and second reflected measurement light; and a control unit which calculates a growing condition of the object to be measured on the basis of a light quantity of each beam of the measurement light and a reception light quantity of each beam of the reflected measurement light, wherein each of the wavelength selection members is configured to have, on at least one of the incident surface and the emission surface, a wavelength selection film (28) which has a recess that increases the film thickness corresponding to an increase in an incident angle of each beam of the measurement light and each beam of the reflected measurement light with respect to the wavelength selection members.
G01N 21/27 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
An ophthalmologic apparatus includes an objective measurement optical system that measures an objective refraction characteristic of a subject eye and a control portion that performs total control including control of the objective measurement optical system, wherein the control portion analyzes a characteristic amount of a ring image obtained by measuring the objective refraction characteristic of the subject eye to feedback to a subjective examination content of the subject eye according to an analysis result of the characteristic amount of the ring image.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
Provided is a method for manufacturing a display device, which makes it possible to easily achieve the fixation of a display panel and can reduce load on the display panel. The method is a method for manufacturing a display device (a monitor (15)) rotatably held by a rotation-holding mechanism (16) having at least one rotation axis (C1, C2) in an ophthalmologic device (10), in which a metal plate (32) that covers the back side of a planar display panel (a liquid crystal panel (30)) is rotatably held by the rotation-holding mechanism (16) and the display panel is adhered (with an adhesive tape (40)) and fixed to the metal plate (32).
[Problem] To enable acquisition of three-dimensional information obtained from a viewpoint on a construction machine. [Solution] This computing device: acquires positioning data by tracking and measuring the position of a reflection prism 102 on a construction machine 100 equipped with a camera 101 and the reflection prism 102, using a total station 200 of which an exterior orientation element in a specific coordinate system is known; acquires image data of a plurality of images captured by the camera 101 imaging overlapping areas from a plurality of different positions; calculates the relative positional relationship between a plurality of feature points p1, p2, p3 extracted from the plurality of captured images and the plurality of different positions of the camera 101; calculates the trajectory of the movement of the camera 101 with respect to the plurality of feature points p1, p2, p3 on the basis of changes in the relative positional relationship; and determines the positions of the plurality of feature points p1, p2, p3 in the specific coordinate system on the basis of a comparison between the calculated trajectory of the movement of the camera 101 and the positioning data.
The purpose of the present invention is to provide a three-dimensional surveying apparatus, a three-dimensional surveying apparatus driving method, and a three-dimensional surveying apparatus driving program that can minimize operating time and save power consumption of a battery. A three-dimensional surveying apparatus 2 is provided with: a motor 433 that rotates a rotation object; a rotary encoder 434 that detects the rotation angle of the rotation object; a calculation unit 461 that calculates, as an initial phase, the phase relationship of the phase of the motor 433 with respect to the zero position of the rotary encoder 434; and a storage unit 468 that stores the initial phase as a drive parameter. The calculation unit 461 stores the drive parameter in advance in the storage unit 468, and drives, at the initial operation after power on, the motor 433 by open loop control. Upon detection of the zero position of the rotary encoder 434, the calculation unit applies the drive parameter stored in the storage unit 468 as a phase angle, and then drives the motor 433 by closed loop control using a value of the rotary encoder 434.
G01C 15/00 - Surveying instruments or accessories not provided for in groups
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01D 5/12 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
33.
OPHTHALMIC DEVICE, METHOD FOR CONTROLLING OPHTHALMIC DEVICE, AND PROGRAM
This ophthalmology device includes a measurement optical system, a control unit, and a calculation unit. The measurement optical system includes a focusing lens. The measurement optical system measures the wavefront aberration of an eye under examination in which an intraocular lens is to be placed, and acquires a Hartmann image. The control unit controls the focusing lens so as to search for a state in which at least one of a plurality of spot images constituting the Hartmann image is separated into two or more separated spot images, and causes the measurement optical system to acquire a Hartmann image in a state in which two or more separated spot images are separated. The calculation unit calculates, on the basis of the Hartmann image, the refractive power of the eye under examination.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/11 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for measuring interpupillary distance or diameter of pupils
34.
METHOD AND APPARATUS FOR OFDM-BASED LOCAL POSITIONING SYSTEM
A method and apparatus is provided for determining a mobile station's position by utilizing modified Wi-Fi signals and transmitting and receiving Wi-Fi signals by a plurality of base stations, receiving signals transmitted by these base stations (which have known coordinates) and located in some proximity to the mobile station, and calculating position coordinates of the mobile station (also referred to herein as a mobile object) based on the signals.
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
A method and apparatus for determining a position and attitude of a marker having encoded information includes the step of acquiring an image of a marker by a stereo camera. A center of the marker is determined and then a position of the marker is determined based on the center of the marker. A plurality of vertices on the marker about the center of the marker are then determined. Using the plurality of vertices, a pitch, roll, and heading of the marker are determined. An attitude of the marker is determined based on the pitch, roll, and heading of the marker. The method and/or apparatus for determining a position and attitude of a marker can be used in various applications to determine the position and attitude of objects on which the marker is located.
G06V 10/22 - Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
36.
DIGITAL RECONFIGURABLE APPARATUS FOR SPECTRUM ANALYSIS AND INTREFERENCE REJECTION
Digital anti-jam apparatus includes a CPU; N spectrum analysis and band rejection (SABR) modules, each receiving a digital quadrature signal input, outputting a spectral data output, and outputting a quadrature output with interference band rejected; the CPU first places the SABR modules into a spectral analysis (SA) mode, and upon detection of interference, places the SABR modules into a band rejection (BR) mode while the interference continues; N N-to-1 multiplexers, whose quadrature outputs are connected to corresponding SABR modules, wherein the CPU controls whether to connect an input of each multiplexer either to the quadrature signal input or to the quadrature band-reject output of any other SABR module; a (N+1)-to-1 multiplexer, connected to the quadrature signal input or to the quadrature output of any SABR module; and a frequency conversion module, that receives output of the (N+1)-to-1 multiplexer and shifts a spectrum of the digital quadrature signal input.
G01R 23/167 - Spectrum analysis; Fourier analysis using filters with digital filters
G01S 19/37 - Hardware or software details of the signal processing chain
G06F 7/544 - Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using unspecified devices for evaluating functions by calculation
37.
OPHTHALMIC INFORMATION PROCESSING DEVICE, OPHTHALMIC DEVICE, OPHTHALMIC INFORMATION PROCESSING METHOD, AND PROGRAM
This ophthalmic information processing device calculates the refractive power of an examined eye wearing an intraocular lens on the basis of wavefront aberration information obtained by conducting wavefront aberration measurement for the examined eye. The ophthalmic information processing device comprises an acquisition unit and a calculation unit. The acquisition unit acquires at least intraocular lens information representing the optical characteristics of the intraocular lens. The calculation unit uses the intraocular lens information to change a refractive power calculation process method and calculate the refractive power of the examined eye.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
38.
OPHTHALMIC APPARATUS, METHOD OF CONTROLLING OPHTHALMIC APPARATUS, AND RECORDING MEDIUM
An ophthalmic apparatus includes an objective lens, a first illumination optical system arranged approximately coaxially with an optical axis of the objective lens and configured to be capable of irradiating first illumination light onto an eye to be examined through the objective lens, a second illumination optical system arranged so as to be eccentric to the optical axis of the objective lens and configured to be capable of irradiating second illumination light onto the eye to be examined through the objective lens, a left-eye observation optical system configured to be capable of guiding returning light from the eye to be examined, where the first illumination light or the second illumination light has entered through the objective lens, to a left-eye eyepiece or a left-eye imaging element, and a right-eye observation optical system configured to be capable of guiding returning light from the eye to be examined, where the first illumination light or the second illumination light has entered through the objective lens, to a right-eye eyepiece or a right-eye imaging element. The second illumination optical system is capable of changing an incident angle of a principal ray of the second illumination light relative to the eye to be examined.
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
An ophthalmic microscope includes an observation system configured to observe an eye to be examined, the observation system including an objective lens and a pair of observation optical paths, an imaging system capable of stereoscopically imaging respective observation lights of the eye to be examined from the observation optical paths, and a mode switching unit capable of selectively switching among a first mode for acquiring a first image obtained by stereoscopically imaging the observation lights from both the observation optical paths using the imaging system, a second mode for acquiring only a second image obtained by imaging the observation light from one of the observation optical paths using the imaging system, and a third mode for acquiring only a third image obtained by imaging the observation light from the other of the observation optical paths using the imaging system.
A Global Navigation Satellite System (GNSS) receiver for processing GNSS satellite signals use a quasi-asynchronous sampling frequency grid to process the received signals. The GNSS receiver includes a plurality of RF paths configured to receive Global Navigation Satellite System (GNSS) signals from an antenna and transmit the GNSS signals in a frequency range for digitizing the GNSS signals. A phase-locked loop is configured to generate a clock signal and a plurality of clock dividers are configured to receive the clock signal and divide the clock signal. Each of a plurality of navigation systems receive a clock signal from one of the plurality of clock dividers.
Navigation receiver comprising navigation system (200) includes a plurality of range frequency paths configured to receive Global Navigation Satellite Systems (GNSS) signals from an antenna and transmit the GNSS signals in a frequency range for digitizing the GNSS signals. Navigation system includes a number of Analog Digital Converters (101); a plurality of signal processors forming a plurality of signal paths (102); requantizers (103); navigation channels (104); time control (105) transmitting tick signal (S106). The navigation receiver also includes a central processing unit (CPU) system (110) which includes CPU (107), BUS (databus) (108), and memory (109), which receives data readiness flag signal (S i l l). The navigation system and the CPU system connect by interface blocks (202) and (203). The invention provides increased speed of processing of navigation data.
Provided are an ophthalmic device and a method for controlling an ophthalmic device with which it is possible to easily generate satisfactory three-dimensional data of an observed portion of an eye under examination. The present invention is provided with: a pre-scan control unit (216) for performing a pre-scan on the observed portion (eye fundus (Ef)); a tomographic shape acquisition unit (218) for detecting or predicting the tomographic shape of the observed portion; a main scan control unit (220) for controlling an optical scanner and executing a main scan on the observed portion; an optical path length acquisition unit (214) for acquiring the optimum optical path length at a specific scan position of the main scan at least before the main scan; an optical path length adjustment control unit (224) for controlling, during the execution of the main scan, an optical path length changing unit and adjusting the optical path length to the optimum optical path length; and a three-dimensional data generation unit (226) for generating three-dimensional data (404) of the observed portion.
A Global Navigation Satellite System receiver comprises: a plurality of radio frequency paths; a navigation system (200); a plurality of analog to digital convertors (101); a plurality of signal processors (102); a plurality of re-quantizers (103); a plurality of Navigation system to central processing unit (CPU) System interface blocks (202); a MUX interconnect (201); a time control unit (105); a CPU system (210) operating based on the tick signal, the CPU system operating at a speed based on a CPU Clock (CLKcpu) and comprising: a memory (109); a multi-channel data manager (205); a plurality of channels (104); a direct memory access channel reload (207); a CPU (107). The invention is aimed at increasing the speed of processing navigation data.
A method for automated steering by machine vision receives a point cloud that is generated using a stereo camera. A location of a row is determined based on the point cloud and a steering angle is generated based on the location of the row. The center of the row is detected using a Hough transform detection algorithm and a horizontal projection of the point cloud.
A navigation receiver receives a global navigation satellite system signal and processes the signal in a manner that lowers the load on a processor used in the navigation receiver. The navigation receiver includes multiple components that are assembled and configured to detect and respond to events, such as the generation of signals, using a relaxed tick signal that lowers the load on the processor of the navigation receiver.
The ophthalmologic device according to one embodiment includes a first imaging unit, a second imaging unit and an evaluation processing unit. The first imaging unit includes a first optical system that meets Scheimpflug conditions, and is configured such that first imaging under a first imaging condition is applied to an anterior eye segment of an eye to be examined. The second imaging unit includes a second optical system that meets Scheimpflug conditions, and is configured such that second imaging under a second imaging condition that is different from the first imaging condition is applied to the anterior eye segment in parallel with the first imaging. The evaluation processing unit is configured so as to generate evaluation information about a floating substance in an aqueous humor on the basis of a first image generated in the first imaging by the first imaging unit and a second image generated in the second imaging by the second imaging unit.
OPHTHALMOLOGIC INFORMATION PROCESSING SYSTEM, OPHTHALMOLOGIC INFORMATION PROCESSING SERVER, OPHTHALMOLOGIC INFORMATION PROCESSING PROGRAM, AND OPHTHALMOLOGIC INFORMATION PROCESSING METHOD
An ophthalmologic information processing system for selecting a subject at risk of glaucoma as a candidate includes: an information acquisition unit that acquires measurement information of an eye of the subject measured by an ophthalmologic apparatus; and a determination unit that determines whether the subject is a candidate at risk of glaucoma based on an anterior chamber depth of the subject included in the measurement information acquired by the information acquisition unit.
A61B 3/117 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
G16H 50/30 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for individual health risk assessment
A grade evaluation apparatus for blood vessel distribution image includes a control device. The control device is configured to: obtain a blood vessel distribution image, the blood vessel distribution image representing a distribution of blood vessels in an eyeball obtained by OCT-angiography; calculate a plurality of evaluation values from the blood vessel distribution image based on a plurality of criteria; and calculate a grade value based on the plurality of evaluation values, the grade value indicating a grade of the blood vessel distribution image.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
An ophthalmic apparatus includes an objective lens, an illumination optical system, an imaging optical system, and an optical path coupling member. The illumination optical system may illuminate a subject's eye with illumination light via the objective lens. The imaging optical system may guide returning light of the illumination light from the subject's eye to an imaging device via the objective lens. The optical path coupling member has a transparent member with a reflective region formed by evaporating a reflective film onto a part of a transmission region of its surface, and is configured to couple an optical path of the illumination optical system with an optical path of the imaging optical system. The transmission region may be arranged substantially conjugate optically to a subject's iris. The illumination light is reflected on the reflective region and the returning light is transmitted through the transmission region.
An ophthalmologic device according to an embodiment of the present invention includes: an illumination system that projects illumination light onto an eye to be examined; and an image-capturing system that captures an image of the eye to be examined. The illumination system and the image-capturing system are configured so as to satisfy the Scheimpflug conditions. The illumination system includes a light source unit and an illumination polarizer. The light source unit outputs slit illumination light. The illumination polarizer extracts an illumination polarization component from the slit illumination light output by the light source unit. The illumination system projects the illumination polarization component extracted by the illumination polarizer onto the eye to be examined so as to serve as the illumination light. The image-capturing system includes an image-capturing polarizer and an imaging element. The image-capturing polarizer extracts an image-capturing polarization component from return light coming from the eye to be examined onto which the slit illumination light is projected. The imaging element detects the image-capturing polarization component extracted by the image-capturing polarizer.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
16 - Paper, cardboard and goods made from these materials
Goods & Services
Construction machines and apparatus; loading-unloading
machines and apparatus; agricultural machines and
agricultural implements, other than hand-operated; plastic
processing machines and apparatus; semiconductor
manufacturing machines. Photographic machines and apparatus; optical machines and
apparatus; measuring or testing machines and instruments;
batteries and cells; telecommunication machines and
apparatus; electronic control apparatus for machines. Esthetic massage apparatus for commercial use; medical
apparatus and instruments; electric massage apparatus for
household purposes; gloves for medical purposes; urinals for
medical purposes; bed pans; ear picks. Paper and cardboard; printed matter.
53.
METHOD OF PROCESSING OPTICAL COHERENCE TOMOGRAPHY (OCT) DATA, METHOD OF OCT IMAGING, AND OCT DATA PROCESSING APPARATUS
An OCT apparatus of an exemplary aspect includes an OCT scanner, image data generating unit, registration unit, and image data composing unit. The OCT scanner is configured to acquire three dimensional data sets by applying an OCT scan to mutually different three dimensional regions of a sample. The image data generating unit is configured to generate a plurality of pieces of image data from the three dimensional data sets. The registration unit is configured to perform a first registration between the plurality of pieces of image data by applying an image correlation calculation to each of overlap regions in the plurality of pieces of image data. The image data composing unit is configured to compose the plurality of pieces of image data based on a result of the first registration.
G06T 7/32 - Determination of transform parameters for the alignment of images, i.e. image registration using correlation-based methods
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
G06T 3/00 - Geometric image transformation in the plane of the image
G06T 3/20 - Linear translation of a whole image or part thereof, e.g. panning
G06T 3/60 - Rotation of a whole image or part thereof
54.
OPHTHALMIC APPARATUS, METHOD OF CONTROLLING OPHTHALMIC APPARATUS, AND RECORDING MEDIUM
An ophthalmic apparatus according to an embodiment includes an illumination system configured to project illumination light onto a subject's eye, and a photography system configured to perform photography of the subject's eye. The illumination system and the photography system are configured to satisfy a Scheimpflug condition. The illumination system includes a light source unit configured to output slit illumination light, and an illumination polarizer configured to extract an illumination polarization component from the slit illumination light. The illumination system is further configured to project the illumination polarization component onto the subject's eye. The photography system includes a photography polarizer configured to extract a photography polarization component from return light from the subject's eye with the slit illumination light projected, and an image sensor configured to detect the photography polarization component.
A method and apparatus for processing global navigation satellite signals, or radar signals, specifies an arrival time of a signal having a shape similar to a known pseudo-random noise sequence (PRN) of rectangular pulses. Two quadrature signals are generated and six correlations are calculated and multiplied by a correlation coefficient. The results of one of quadrature signals are summed and a timing error is estimated. An improved signal arrival time is generated by adding the estimated timing error to the predicted signal arrival time is generated.
Method of demodulation of M-CPFSK signal, includes receiving the M-CPFSK radio signal; moving it to zero frequency; sampling at no less than double a frequency of symbols; storing the samples with their amplitude and phase for at least L4 symbols; demodulating the sampled signal in three stages, wherein each stage includes iterating over symbol values within a block of symbols, of length is L1, L2 and then L3; in the first stage, N1 symbol sequences out of all possible symbol sequences are iterated over, at the second stage, N2 symbol sequences out of all possible symbol sequences are iterated over, and at the third stage, N3 symbol sequences out of all possible symbol sequences are iterated over, to obtain final symbol values; symbol values obtained at previous stage is used in a next stage to reduce a number of symbol sequences; and determining encoded bits based on final symbol values.
H04L 27/148 - Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters
Provided is an ophthalmological device that can acquire information about an eye to be examined by a simpler operation and with higher efficiency. The ophthalmological device (100) is provided with: a measurement head (16) having a measurement optical system (21) that is an information acquisition unit to be used for the acquisition of information about an eye to be examined; a display unit (30) that has a touch-panel-type display screen (30a) on which an operation picture image is displayed; and a control unit (26) that controls the measurement head (16) on the basis of input information including a touch operation for the display screen (30a). The control unit (26) has: a normal input mode for controlling the measurement optical system (21) on the basis of the input information for the operation picture image; and a gesture input mode for controlling the measurement optical system (21) on the basis of input information for a gesture input region (30c) by gesture inputting.
A surveying system (1) includes: a target device (3) that includes a pole (14) and a target (15) having a known distance from the bottom end of the pole; and a surveying device (2) that is capable of measuring the target. The surveying system is configured such that the pole is pivoted with the bottom end of the pole positioned at a prescribed measurement point (13), the surveying device measures the target at at least three points, three-dimensional coordinates of a virtual measurement point are computed on the basis of the results of measurement of individual targets, the degree of matching between the measurement point and the virtual measurement point is computed as a confidence, and an operation for finishing measurement is performed when the confidence satisfies a preset threshold.
An ophthalmic apparatus includes an optical system having an illumination and imaging optical systems, a movement mechanism, and a controller. The illumination optical system may illuminate a fundus of a subject's eye with illumination light. The movement mechanism may relatively move the subject's eye and the optical system in an optical axis direction of the imaging optical system. When a corneal curvature radius is R and a distance from a corneal apex position to an imaging aperture conjugate position substantially conjugate optically to the imaging aperture is d, the controller may control the movement mechanism so that light amount of the returning light passing through the imaging aperture becomes less than when a distance in the optical axis direction between the imaging aperture conjugate position and a position of a corneal reflection image of the illumination light is (R/2−d).
[Problem] To reduce operation noise and impact in an ophthalmological device for measuring intraocular pressure using high-pressure gas. [Solution] An ophthalmological device comprising: a high-pressure cylinder 101 that continuously generates a high-pressure gas; a pressure storage tank 104 for storing the high-pressure gas fed from the high-pressure cylinder 101; a pressure regulator 103 that is disposed between the high-pressure cylinder 101 and the pressure storage tank 104, the pressure regulator 103 feeding high-pressure air fed from the high-pressure cylinder 101 to the pressure storage tank 104 in a state of being stabilized at a specific pressure; a nozzle 107 that is linked to the pressure storage tank 104 and that ejects the high-pressure gas at a subject eye 200; and an electromagnetic valve 105 that is disposed between the pressure storage tank 104 and the nozzle 107.
A61B 3/16 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for measuring intraocular pressure, e.g. tonometers
61.
Patch antenna with wire radiation elements for high-precision GNSS applications
A right-hand circularly-polarized patch antenna comprising a ground plane and a patch connected to each other with one or more wires for which the wire shape and location of the end points are selected such that they do not cause an antenna mismatch, and the electrical current carried in the wires produces an extra electromagnetic field subtracted from the patch field in the nadir direction.
An ophthalmologic device (1000) according to an embodiment includes an imaging unit (1010), a control unit (1020), and an image processing unit (1030). The imaging unit includes an optical system (1011) satisfying the Scheimpflug condition. The control unit is configured to control the imaging unit so as to perform imaging of a subject eye at least twice at different imaging conditions. The image processing unit is configured to generate a high-dynamic-range image on the basis of two or more images of the subject eye captured by the imaging performed at least twice at different imaging conditions.
A technique for solving problems related to intense light that is reflected back from a reflector target in laser scanning, is provided. A processing device controls laser scanning that is performed by a laser scanning apparatus having a light reception unit. The processing device includes a laser scanning apparatus controller, a saturation determination unit, and a variable optical attenuator controller. The laser scanning apparatus controller makes the laser scanning apparatus execute first laser scanning and second laser scanning. The saturation determination unit determines a state of saturation of the light reception unit, with respect to laser-scanned point clouds obtained in the first laser scanning. The variable optical attenuator controller adjusts an intensity of light to be received by the light reception unit in the second laser scanning, based on a result of determination.
The glaucoma screening method according to an embodiment includes the following steps. In a calculation model preparation step, a calculation model is prepared, the calculation model including a linear combination of at least one papilla parameter that represents the thickness of a retinal tissue in an optic papilla area and a linear combination of at least one macula parameter that represents the thickness of a retinal tissue in a macula area. In an OCT data generation step, the ocular fundus of an eye to be tested is subjected to OCT scanning to generate OCT data. In a measurement value calculation step, a plurality of measurement values including a papilla measurement value corresponding to each papilla parameter and a macula measurement value corresponding to each macular parameter of the calculation model are calculated on the basis of the OCT data. In a measurement value input step, the calculated plurality of measurement values are input into the calculation model. In a calculation result provision step, a calculation result output from the calculation model in accordance with the inputting of the plurality of measurement values is provided.
An ophthalmic observation apparatus of an embodiment includes an illumination system, a photography system, and a focus processor. The illumination system includes a light source configured to emit illumination light and an indicator member having a plurality of indicators, and is configured to project the illumination light onto a subject's eye via the indicator member. The photography system includes an image sensor and is configured to perform photography of the subject's eye. The focus processor is configured to perform detection of a plurality of indicator images from an image acquired by the photography system, and perform a focus control of the photography system based on the plurality of indicator images.
42 - Scientific, technological and industrial services, research and design
Goods & Services
providing an internet website portal for clinicians and healthcare professionals to share medical information, research, perspectives, case reports, and insights to promote the innovation and awareness of shared care digital health initiatives in the field of ophthalmology
42 - Scientific, technological and industrial services, research and design
Goods & Services
Hosting an internet website portal for clinicians and healthcare professionals to share medical information, research, perspectives, case reports, and insights to promote the innovation and awareness of shared care digital health initiatives in the field of ophthalmology.
68.
OPTHALMIC INFORMATION PROCESSING DEVICE, OPTHALMIC DEVICE, OPTHALMIC INFORMATION PROCESSING METHOD, AND PROGRAM
An ophthalmic information processing device according to the present invention comprises a fitting processing unit and a display control unit. The fitting processing unit subjects a two-dimensional or three-dimensional OCT image, which represents the shape of a prescribed layer region in the fundus of a to-be-examined eye, to a two-dimensional ellipse approximation process or a three-dimensional ellipsoid approximation process. The display control unit causes a display means to display a prescribed region in the OCT image and display an ellipse center angle, which corresponds to a range of a prescribed region around an ellipse center of a two-dimensional ellipse specified by the fitting processing unit, or an ellipsoid center angle, which corresponds to a range of a prescribed region around an ellipsoid center of a three-dimensional ellipsoid specified by the fitting processing unit.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
69.
OPHTHALMIC INFORMATION PROCESSING APPARATUS, OPHTHALMIC APPARATUS, OPHTHALMIC INFORMATION PROCESSING METHOD, AND RECORDING MEDIUM
An ophthalmic information processing apparatus includes an acquisition unit and a normalizer. The acquisition unit is configured to acquire eye shape data or an intraocular distance of an eye of a subject. The normalizer is configured to normalize the eye shape data or the intraocular distance based on body data of the subject or a refractive power of the eye of the subject.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
A61B 3/107 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining the shape or measuring the curvature of the cornea
A61B 3/18 - Arrangement of plural eye-testing or -examining apparatus
A61B 3/117 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
(1) Providing an internet website portal for clinicians and healthcare professionals to share medical information, research, perspectives, case reports, and insights to promote the innovation and awareness of shared care digital health initiatives in the field of ophthalmology
71.
IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS, AND RECORDING MEDIUM
An embodiment is a method of processing an optical coherence tomography (OCT) image. The method is configured to acquire a plurality of images by applying a plurality of OCT scans corresponding to a plurality of different polarization conditions to a sample, and then generate a mean image with a reduced birefringence-derived artifact by applying averaging to the plurality of images corresponding to the plurality of different polarization conditions.
An ophthalmic observation apparatus of an embodiment example includes a moving image generating unit, a movement mechanism, an analyzing processor, and a first controller. The moving image generating unit is configured to generate a moving image by illuminating and photographing the subject's eye. The movement mechanism is configured to move the moving image generating unit. The analyzing processor is configured to sequentially analyze a plurality of still images included in the moving image generated by the moving image generating unit being moved by the movement mechanism to sequentially detect images of a predetermined site of the subject's eye. The first controller is configured to control the movement mechanism based on a change in a predetermined image parameter of the images sequentially detected by the analyzing processor.
A61B 3/117 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
73.
MYOPIA PROGRESSION ANALYSIS DEVICE, MYOPIA PROGRESSION ANALYSIS SYSTEM, MYOPIA PROGRESSION ANALYSIS METHOD, AND MYOPIA PROGRESSION ANALYSIS PROGRAM
Disclosed is a myopia progression analysis device including: an eye axial length acquisition section that acquires an eye axial length of an eye of a subject; a reference value acquisition section that acquires a numerical value related to a physical characteristic of the subject other than the eye axial length as a reference value; a relative eye axial length calculator that calculates a relative eye axial length through relativization of the eye axial length acquired by the eye axial length acquisition section using the reference value acquired by the reference value acquisition section; a population information acquisition section that acquires population information which is a set of information about relative eye axial lengths of a plurality of comparison targets to be compared with the subject; and a relative position information calculator.
The present invention comprises: an ophthalmological device 200 that is provided with a measurement unit 230; a measurement information processing unit 221 that converts measurement information, which has been obtained by the measurement unit 230, into image information and non-image information other than the image information; an ophthalmological device display unit 250 of the ophthalmological device 200 that displays the image information; a terminal device 400 that is arranged remotely from the ophthalmological device 200 and that is provided with a terminal display unit 340; a display unit imaging device 400 that is attached to the ophthalmological device 200 and that captures the entirety of the image which is displayed on the ophthalmological device display unit 250; an image transmission unit 480 that transmits, to the terminal device 300, the image which has been captured by the display unit imaging device 400; a measurement information transmission unit 222 of the ophthalmological device 200 that transmits the measurement information to the terminal device 300; and an information integration unit 321 that integrates the image information which has been transmitted from the image transmission unit 480 and the measurement information other than the image information so as to display these pieces of information on the terminal display unit 340.
A full-range imaging method doubles imaging range of conventional techniques by removing mirror images of an imaged object that limit conventional images to a “half-range” and that are caused in part by the loss of phase information in a detected signal. Phase information of the detected signal is reconstructed with an averaging technique based on a modulated phase induced in the detected signal during scanning.
An ophthalmic observation apparatus of an embodiment includes a microscope, a processor, and a display controller. The microscope includes a pair of photography systems and is configured to acquire a pair of pieces of moving image data of a subject's eye. The processor is configured to perform first processing including at least one of a control of the microscope and image processing applied to at least one of the pair of pieces of moving image data, such that a predetermined parameter of the pair of pieces of moving image data satisfies a first condition. The display controller is configured to display a pair of moving images based on the pair of pieces of moving image data produced by the first processing on a display device.
An ophthalmic observation apparatus according to an embodiment example includes a moving image generating unit, an analyzing processor, and a display controller. The moving image generating unit is configured to generate a moving image by photographing a subject's eye into which an artificial object has been inserted. The analyzing processor is configured to analyze a still image included in the moving image to identify a first site image corresponding to a predetermined site of the subject's eye and a second site image corresponding to a predetermined site of the artificial object. The display controller is configured to display, on a display device, the moving image, first position information that represents a position of the first site image, and second position information that represents a position of the second site image.
An ophthalmic observation apparatus according to an embodiment example includes a moving image generating unit, an analyzing processor, a target position determining processor, and a display controller. The moving image generating unit is configured to generate a moving image by photographing the subject's eye. The analyzing processor is configured to analyze a still image included in the moving image to detect an image of a predetermined site of the subject's eye. The target position determining processor is configured to determine a target position for a predetermined treatment based at least on the image of the predetermined site detected by the analyzing processor. The display controller is configured to display, on a display device, the moving image and target position information that represents the target position.
An ophthalmologic device according to one embodiment of the present invention includes an illumination system, an imaging system, a movement mechanism, and a control unit. The illumination system projects illumination light onto an eye under test. The imaging system images the eye under test. The imaging system includes an imaging element. The illumination system and the imaging system are configured to satisfy a shine-proof condition. The movement mechanism moves the illumination system and the imaging system. The control unit controls the illumination system, the imaging system, and the movement mechanism to cause the imaging system to collect a series of images. With regard to the control for causing the imaging system to collect the series of images of the eye under test, the control unit controls at least one among the illumination system and the imaging system such that a projection time of illumination light onto the eye under test is shorter than an exposure time of the imaging element, and such that at least a portion of the projection period of the illumination light onto the eye under test and at least a portion of the exposure period of the imaging element overlap.
Antenna system includes an axially symmetric ground plane; a circular disc patch radiator positioned parallel to the ground plane; and a circular ring patch radiator positioned parallel to the ground plane and shorted to the ground plane using a cylindrical conductor at its inner radius; both radiators have the common axis of rotational symmetry; each radiator is excited with its own vertical metal pin, and both radiators are located at same height above the ground plane; and an axially symmetric capacitive decoupling element connecting a center of the disc patch to a center of the ground plane. Each vertical metal pin goes through the ground plane using through holes, and each vertical metal pin has a impedance matching network connected to it, and wherein the impedance matching network is connected to its transmission line section. The disc patch and the ring patch are isolated from the ground plane with dielectric.
An ophthalmic information processing apparatus is configured to remove an artifact of an image of a subject's eye obtained using an ophthalmic apparatus. The ophthalmic information processing apparatus includes an identifying unit and a correction unit. The identifying unit is configured to identify a correction region in the image based on a dioptric power of the subject's eye. The correction unit is configured to correct a luminance in the correction region identified by the identifying unit, based on a correction amount corresponding to the dioptric power of the subject's eye.
An apparatus includes an antenna, RF path, Analog to Digital convertor (ADC), filter, and navigation channel for processing a received GNSS signal based on a navigation clock. A communication modem is configured to receive the signal via a first antenna, RF path, and ADC and process the received signal in order to generate a signal based on a modem clock. The communication modem is further configured to transmit the signal based on the modem clock using a R+1 antenna via a R+1 RF path and a Digital to Analog Convertor (DAC). A multichannel synchronous signal analysis system (MSSAS) receives outputs of the ADCs and processes them using a plurality of decimators and plurality data receivers. Each of the decimators is configured to process the outputs of the ADCs and output data to one of a plurality of data receivers. A CPU is configured to control all of the devices.
The ophthalmic device 1 according to an exemplary embodiment of the present invention comprises an LCD 39, an OCT unit 250, an inclination information generation unit 231, and a control unit 210. The LCD 39 presents a fixation target to an eye E under examination. The OCT unit 250 applies an OCT scan to an anterior eye part Ea of the eye E under examination, and constructs an image. The inclination information generation unit 231 generates inclination information indicating the inclination state of the anterior eye part Ea that has been drawn in the image constructed by the OCT unit 250. On the basis of the inclination information generated by the inclination information generation unit 231, the control unit 210 controls the LCD 39 to move the fixation target.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
A61B 3/117 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes
An automated optical coherence tomography (OCT) method that includes receiving an input from a patient, acquiring a reference image of an object indicating a desired scan location and acquiring a real-time image of the object, where the reference image is unique to a patient and remotely acquired. The real-time image is registered to the reference image to determine a desired scan location. An OCT image is automatically acquired at the desiring scan location.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
A61B 3/113 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining or recording eye movement
A method and apparatus for mitigation of GNSS-signal interference using an adaptive notch filter (ANF) operates based on signals received from one or more satellites of a Global Navigation Satellite System (GNSS) such as GPS, GLONASS, etc. In one embodiment, an apparatus comprises a notch filter having a tunable zero frequency of a transfer function receives an input signal and generates an output signal. A bandpass filter coupled to the output of the notch filter receives the output signal. An adaptive block is coupled to the bandpass filter and adjusts the notch filter parameters in order to achieve the minimization of a specific cost function.
This measuring device comprises: a detecting unit including a light source and a light receiving unit; a reflecting element for reflecting light emitted from the light source around an optical axis of the detecting unit; a deflecting unit which is disposed around the optical axis, and which reflects the light reflected by the reflecting element to the side of an object being irradiated, thereby deflecting the light; and a control unit which causes light reflected from the object being irradiated to be received by the light receiving unit via the deflecting unit and the reflecting element, and which detects a spatial position of the object being irradiated from a round-trip time and an emission direction of the light.
A measurement device according to the present invention comprises: a light source; a reflection element that reflects, about the optical axis of the light source, light which has been emitted from the light source; a deflection unit that is disposed about the optical axis and that deflects, toward an irradiation target by reflection, the light which has been reflected by the reflection element; and a directivity impartment unit that imparts directivity to the light which is projected to the irradiation target.
An ophthalmologic apparatus includes: a spectroscopic member that separates light emitted from a light source into a first spectral component and a second spectral component; an optical scanner that guides the first spectral component and the second spectral component to an observation target region of a subject's eye including a plurality of imaging target lines formed by dividing the observation target region in a scanning direction; a line exposure imaging element that includes a plurality of exposure lines capable of detecting return light from the observation target region in the light receiving region; and a controller that illuminates a region of the imaging target lines corresponding to the two or more exposure lines forming the exposure line group with the first spectral component and the second spectral component to perform focus determination based on the result of detection by the exposure lines in the exposure line group.
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
A61B 3/15 - Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection
A slit lamp microscope according to an embodiment example includes a scanner and a memory. The scanner is configured to perform application of a scan with slit light to a three dimensional region including a corner angle of a subject’s eye to collect an image group. The memory is configured to store the image group collected by the scanner.
In a surveying instrument including an instrument height measuring unit the instrument height measuring unit includes a light transmitting unit configured to emit light, a beam splitter configured to be incident with light emitted from the light transmitting unit, split the incident light into reference light and distance-measuring light, send the reference light to a reference light path, and send the distance-measuring light to a distance-measuring light path, a first light receiving unit configured to receive the reference light, a second light receiving unit configured to receive light being the distance-measuring light that has been emitted toward a position below the vertical axis of the surveying instrument main body and returned by being reflected by a distance-measuring object, and an arithmetic unit configured to calculate the instrument height based on a difference between light reception signals generated by the first light receiving unit and the second light receiving unit.
An ophthalmic device pertaining to an exemplary embodiment of the present invention includes a moving image acquisition unit, an image processing unit, and an evaluation processing unit. The moving image acquisition unit acquires a moving image of an eyelid of a subject. The image processing unit identifies a meibomian gland region from at least one frame of the moving image of the eyelid of the subject acquired by the moving image acquisition unit. The evaluation processing unit generates evaluation information about predetermined diseases on the basis of the meibomian gland region identified by the image processing unit.
An ophthalmic information processing apparatus includes a feature amount extractor and a classifier. The feature amount extractor is configured to extract a feature amount of each of two or more images different from each other of a subject’s eye. The classifier is configured to output two or more confidence score information for estimating classification result of a pathological condition of a disease of the subject’s eye, based on the feature amounts of each of the two or more images extracted by the feature amount extractor and one or more background data representing a state of the subject or a state of the subject’s eye.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
An ophthalmologic apparatus includes an illumination system that is supported to be rotatable about a subject's eye with an irradiation direction of illumination light kept toward the subject's eye and an observation system that has a camera device and is arranged opposite to a position of the subject's eye across the illumination system. The camera device includes an imaging unit that receives reflection of the illumination light from the subject's eye and a light emitting unit for background illumination that is provided in the observation system and located below the subject's eye.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
16 - Paper, cardboard and goods made from these materials
Goods & Services
Construction machines and apparatus; loading-unloading machines and apparatus; agricultural machines and agricultural implements, other than hand-operated; plastic processing machines and apparatus; semiconductor manufacturing machines Photographic machines and apparatus; optical machines and apparatus; measuring or testing machines and instruments; batteries and cells; telecommunication machines and apparatus; electronic control apparatus for machines Esthetic massage apparatus for commercial use; medical apparatus and instruments; electric massage apparatus for household purposes; gloves for medical purposes; urinals for medical purposes; bed pans; ear picks Paper and cardboard; printed matter
95.
METHOD AND APPARATUS FOR DETERMINING MARKER POSITION AND ATTITUDE
A method and apparatus for determining a position and attitude of a marker having encoded information includes the step of acquiring an image of a marker by a stereo camera. A center of the marker is determined and then a position of the marker is determined based on the center of the marker. A plurality of vertices on the marker about the center of the marker are then determined. Using the plurality of vertices, a pitch, roll, and heading of the marker are determined. An attitude of the marker is determined based on the pitch, roll, and heading of the marker. The method and/or apparatus for determining a position and attitude of a marker can be used in various applications to determine the position and attitude of objects on which the marker is located.
A surveying instrument capable of irradiating a spotlight as visible light for centering toward a position below a vertical axis of a surveying instrument main body is configured such that that an irradiation shape of the spotlight is a toric shape. When visible light for centering which passes through a center point of the surveying instrument and is projected on a position right below the surveying instrument is projected in a toric shape having a hole opened at a center like a donut shape, both of an inner circle and an outer circle can be recognized, so that many guides are provided, and it is easier for a worker to align the toric shape with the target point than a point shape, so that the burden of a centering work on the worker is reduced.
An ophthalmologic apparatus includes a subjective measurement optical system configured to measure a subjective refractive value of a subject eye; an objective measurement optical system configured to measure objective refractive characteristics of the subject eye; and a controller configured to control the subjective measurement optical system and the objective measurement optical system. The controller is further configured to perform measurement of the objective refractive characteristics of the subject eye by the objective measurement optical system and perform objective monitoring to monitor objective measurement information obtained by the measurement of the objective refractive characteristics during a weakest power test in which a weakest point is being obtained by the subjective measurement optical system, a maximum visual acuity value or a set predetermined visual acuity value being readable from the weakest point.
A61B 3/18 - Arrangement of plural eye-testing or -examining apparatus
A61B 3/032 - Devices for presenting test symbols or characters, e.g. test chart projectors
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
An ophthalmologic apparatus includes a subjective measurement optical system configured to measure a subjective refractive value of a subject eye, an objective measurement optical system configured to measure objective refractive characteristics of the subject eye, and a controller configured to control the subjective measurement optical system and the objective measurement optical system. The controller is further configured to measure the objective refractive characteristics of the subject eye by the objective measurement optical system and perform objective monitoring to monitor objective measurement information obtained by the measurement of the objective refractive characteristics during an RG test for checking whether or not corrected power is overcorrected or undercorrected by the subjective measurement optical system.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
99.
MANAGEMENT SYSTEM, MANAGEMENT METHOD, AND MANAGEMENT STORAGE MEDIUM
The present invention supports a routine work related to operation of a building to be performed by a manager of the building after completion of building construction. A management system includes a completion database storing, an environment database storing, a rule database including a rule table storing, with respect to an operation rule of the building, a rule ID of the operation rule, rule attributes of the operation rule, and a rule element of the operation rule, and an object table storing the rule ID and related member attributes of a related member related to the rule ID, an operation database including an operation rule table storing the rule ID, a member list of the related member, and an operation rule element based on the rule element, and an operation rule creating unit configured to create the operation rule table.
G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
G06Q 10/063 - Operations research, analysis or management
An ophthalmologic apparatus includes an optotype presentation mechanism that presents an optotype to a left subject eye and a right subject eye, and is capable of changing a brightness difference between the optotype presented to the left subject eye and the optotype presented to the right subject eye, a convergence adjustment mechanism configured to adjust a convergence distance, an eye information obtaining portion configured to obtain eye information on the left subject eye and the right subject eye, and a controller configured to control the optotype presentation mechanism, the convergence adjustment mechanism, and the eye information obtaining portion, wherein the controller sets the convergence distance to a distance different from a optotype presentation distance, gradually increases a brightness difference, and detects a visual line direction of the left subject eye and a visual line direction of the right subject eye based on the eye information.
