Entries |
Document | Title | Date |
20080212028 | Fundus camera - A fundus camera of which the operability in alignment when photographing a fundus is enhanced includes a photographing optical system having a photographing optical axis which photographs the fundus, a fundus observation optical system picking up a fundus observation image, an anterior-segment observation optical system picking up an anterior-segment observation image, a photographing unit housing the optical systems, a moving mechanism moving the unit for alignment of the axis, a display unit, and a controller controlling the display unit and making display switching between the images on a screen of the display unit, wherein the controller includes a program for forming and displaying a reticle mark both in displaying the fundus observation image and in displaying the anterior-segment observation image while forming and displaying an alignment mark of which a relative distance from the reticle mark varies with an alignment deviation amount of the axis with respect to an eye. | 09-04-2008 |
20080212029 | Fundus camera - A fundus camera capable of preferably photographing the periphery of a fundus irrespective of the state of an eye includes a photographing optical system having a photographing optical axis for photographing the fundus, a fundus observation optical system for picking up a fundus observation image, an alignment target projection optical system for projecting an alignment target onto an anterior segment of the eye, an alignment target image detection optical system, a photographing unit housing the systems, a moving mechanism moving the unit for alignment of the axis, a fixation target presenting system for guiding a visual line direction, a target presenting position being selectable or changeable, a display unit, and a controller controlling the display unit to display the observation and target images, wherein the controller includes a program for forming and displaying a reticle mark in displaying the observation image varying the shape of the mark with the presenting position. | 09-04-2008 |
20080231804 | Vivo Spatial Measurement of the Density and Proportions of Human Visual Pigments - The present invention concerns a method and system for in vivo spatial measurement of density and relative proportions of retinal visual pigments. The method involves the steps of illuminating a retina with light of a given intensity and wavelength, acquiring the residual light coming from the retina using a photosensing device having an array of pixels, attributing a residual intensity to each pixel thereby producing a corresponding spatial image of the retina, and posing an equation relating the residual intensity to a number of unknown variables of interest. The above steps are repeated using light of a different wavelength but same intensity to acquire a set of spatial images and a set of corresponding equations for each pixel of each image. For each pixel of each image, the set of equations is solved for the unknown variables obtaining the spatial measurement of density and relative proportions of retinal visual pigments. | 09-25-2008 |
20080239239 | Ophthalmic apparatus - An ophthalmic apparatus capable of observing an examinee's eye even during switching of measurement modes comprises a first measurement unit, a second measurement unit, an up-and-down movement mechanism, a display device, mode switching means which generates a mode switching signal for switching between a first measurement mode and a second measurement mode, and a control unit which drives and controls the up-and-down movement mechanism to change a state in which a first center axis and the eye are placed at substantially a same height into a state in which a second center axis and the eye are placed at substantially a same height by moving a main body of the apparatus, and controls to display the image outputted from a first image-pickup element and the image outputted from a second image-pickup element simultaneously on the display device during a shift from the first measurement mode to the second measurement mode. | 10-02-2008 |
20080246917 | Common face and iris imaging optics - A duplex camera with common face and iris imaging optics locates an iris in a scene and images the iris without requiring multiple camera alignment or a rapid zoom capability. A wavelength selective mirror separates the light from an imaged scene into visible and infrared components. The visible component supplies a face image in which an iris location can be determined. Visible light optics and a visible light sensor array provide a scene image to an image processor that determines the iris location. Infrared optics and an infrared sensor produce an iris image centered on the iris location. Upon determining an iris location, a motorized stage can position the iris image in the infrared sensor. The common face and imaging optics allow the image sensors to be permanently aligned to one another. | 10-09-2008 |
20080278687 | Auto-Alignment and Auto-Focus System and Method - A patient positioning system for use with a patient comprises an optical image sensor. The optical image sensor measures an optical image of a tissue structure of an eye of the patient. An image sensor support supports the image sensor. A patient support supports the patient. A linkage is coupled to the image sensor support with the patient support. A processor is coupled to the optical image sensor to determine a gradient of an illumination level of the optical tissue structure image. The processor is coupled to the linkage and configured to articulate the linkage so as to adjust a separation distance from the tissue structure to the image sensor in response to the gradient of the optical tissue structure image. | 11-13-2008 |
20080297722 | Ophthalmic apparatus - An ophthalmic apparatus capable of performing alignment of the apparatus with respect to an examinee's eye with ease regardless of characteristics of the eye or an environment of the apparatus includes a measurement unit performing examination/measurement of the eye, a projection optical system for projecting an alignment target onto an anterior segment of the eye, an image-pickup optical system for picking up an anterior-segment image with an image of the projected target by a two-dimensional image-pickup element, and a calculation and control unit detecting the target image, and based on the detection result, detecting an alignment condition of the measurement unit with the eye, wherein the calculation and control unit detects two-dimensional luminance distribution in an image obtained by the element, and based on the detection result, changes projection light intensity of light of the target and/or gain of the element so that the target image becomes detectable. | 12-04-2008 |
20090046249 | IRIS IMAGING USING REFLECTION FROM THE EYE - A rapid iris acquisition, tracking, and imaging system can be used at longer standoff distances and over larger capture volumes, without the active cooperation of subjects. The captured iris images can be used for biometric identification. Light illuminates the subjects' eyes. Reflections from the eyes are used to steer a high resolution camera to the eyes in order to capture images of the irises. | 02-19-2009 |
20090103050 | OPTICAL INSTRUMENT ALIGNMENT SYSTEM - An ophthalmic apparatus for precisely positioning an optical instrument, such as a wavefront aberrometer, in three dimensions with respect to a patient's eye. The ophthalmic apparatus may include an optical instrument directed in a first direction toward a target area to receive light therefrom and a camera directed in a second direction toward the target area to receive light therefrom, the first and second directions being non-parallel. The camera may include imaging optics to form an optical image on a photodetector array using light reflected from the target area. The ophthalmic apparatus may also include a processor configured to correlate a position of the optical image on the photodetector array with the distance between the optical instrument and the target area. | 04-23-2009 |
20090161068 | Ophthalmic Measurement Apparatus - An ophthalmic measurement apparatus having an instrument axis and comprising (A) a central housing comprising at least two reference surfaces and comprising a beam splitter, the instrument axis extending from the central housing, (B) a camera subsystem having a reference surface, the camera subsystem coupled to one of said reference surfaces such that the reference surface to which the subsystem is coupled and the camera subsystem reference surface together operatively align the camera with the instrument axis, and (C) an aberrometer subsystem having a reference surface, the aberrometer subsystem coupled to one of said reference surfaces such that the reference surface to which the aberrometer subsystem is coupled and the reference surface of the aberrometer subsystem together operatively align the aberrometer subsystem with the instrument axis. | 06-25-2009 |
20090180073 | Fundus camera - A fundus camera capable of favorably photographing a fundus of an examinee's eye comprises a fundus photographing optical system comprising a visible light source which emits illumination light onto the fundus, a focusing lens movable in an optical axis direction thereof, and a fundus image pickup element, an optical system comprising a first photodetector, for detecting a focus state of the photographing optical system with respect to the fundus, a blink sensor which comprises a second photodetector and detects a blink of the eye based on a photo-receiving signal from the second photodetector, and a control unit arranged to suspend photographing upon input of a predetermined signal until the blink is detected by the sensor, and control the light source to emit the light when a predetermined period of time has passed since the blink is detected by the sensor in order to execute the photographing. | 07-16-2009 |
20090190092 | FUNDUS OCULI OBSERVATION DEVICE AND OPHTHALMIC IMAGE DISPLAY DEVICE - A fundus oculi observation device comprises: a first image forming part configured to form a 2-dimensional image of a surface of a fundus oculi of an eye; a second image forming part configured to form a tomographic image having a cross-sectional position in a measurement region of the fundus oculi corresponding to a partial region of the | 07-30-2009 |
20090190093 | DUAL SCHEIMPFLUG SYSTEM FOR THREE-DIMENSIONAL ANALYSIS OF AN EYE - An apparatus for imaging an eye can include a pair of Scheimpflug imaging systems. Each Scheimpflug imaging system can have respective video cameras and optics configured to direct light reflected from an eye into the video cameras. The apparatus can also have a movable platform configured to move the pair of Scheimpflug imaging systems in accordance with eye movement detected by an eye tracking imaging system. In some embodiments, the Scheimpflug imaging systems can rotate 90 degrees about an optical axis of an eye being examined. | 07-30-2009 |
20090195750 | Ophthalmic apparatus - An ophthalmic apparatus capable of alignment in total automation and manual alignment with an examinee's eye comprising an ophthalmic examination unit, a unit detecting an alignment state of the examination unit with the eye, a main base, a mobile base on which the examination unit is mounted and moved horizontally on the main base through operation of a control member, driving mechanisms moving the examination unit vertically and horizontally with respect to the mobile base, means switching a mode between a manual mode of performing alignment of the examination unit with each eye in sequence through the operation and a fully automatic mode of performing the alignment through driving of the driving mechanisms, and a control unit controlling the driving based on the detection result which starts in the fully automatic mode the driving based on a predetermined trigger signal so as to perform the alignment. | 08-06-2009 |
20090268161 | OPTICAL COHERENCE TOMOGRAPHY (OCT) IMAGING SYSTEMS HAVING ADAPTABLE LENS SYSTEMS AND RELATED METHODS AND COMPUTER PROGRAM PRODUCTS - OCT imaging systems are provided for imaging a spherical-type eye including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path. The reference arm path has an associated reference arm path length. A sample is also provided having an associated sample arm path coupled to the source arm and reference arm paths. A lens having a focal power optimized for a diameter of the spherical-type eye is provided along with a reference arm path length adjustment module coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye diameter of the subject. | 10-29-2009 |
20090279052 | Ophthalmologic surgical microscope system having an OCT-measuring device - The invention is directed to an ophthalmologic surgical microscope system ( | 11-12-2009 |
20090323023 | Ophthalmologic Imager - An ophthalmologic imager comprises an illuminating optical system ( | 12-31-2009 |
20100033677 | IMAGE ACQUISITION SYSTEM - A system having a sensor and variable focus lens for iris image standoff acquisition. The sensor may capture a sequence of images at a high frame rate of a person for getting an eye or an iris in a window within the images. Even if the eye moves around in the image, the window may stay on the eye. During this capture, the focus of the lens may be changed, with a best focus situated somewhere in between the end focus positions of the lens. The sensor may be an infrared (IR) sensor and an IR illuminator or flash may provide light for the capture of images. An intensity variance indicator may be incorporated to select an in-focus image of the sequence. Processing of the images may be subsequent to the capture of images, thus not hindering the frame rate of the system. | 02-11-2010 |
20100053554 | OPHTHALMOLOGICAL EXAMINATION DEVICE - The invention relates to an opthalmological measuring instrument, e.g. for determining the corneal curvature, anterior chamber depth, axial length, or the like, comprising measuring systems for determining said variables. The measuring systems are connected to an evaluation unit which verifies whether quality parameters regarding the measurements are satisfied and generates a corresponding signal that indicates to the user that a proper measurement can be taken. | 03-04-2010 |
20100110377 | OPHTHALMOLOGIC APPARATUS FOR IMAGING AN EYE BY OPTICAL COHERENCE TOMOGRAPHY - An OCT appliance (optical coherence tomography appliance) comprises an OCT module and a camera for observing the fundus of an eye. By recognizing characteristic features (biometric features), the means defining the region observed by the OCT module, in particular the scanner of the OCT module, is adjusted so that a predefined region of interest is imaged by the OCT module. In preferred embodiments, the apparatus is apt to be operated by a patient himself, and the data are transferred to a clinical server so that a more frequent, hence closer observation of the eyes of the patient is possible. | 05-06-2010 |
20100110378 | ENABLING MEASUREMENT WITH A HANDHELD EYE IMAGING DEVICE - An apparatus and method is disclosed that enables an existing handheld eye imaging device to do direct measurement on images taken from the patient eye. In a preferred embodiment, a reticle is arranged in the handheld eye imaging device so that a reticle image is superimposed on the object image. In addition to allowing the user to make measurements, the reticle superimposed eye image can also be used to align the eye with the handheld eye imaging device, be used for registering images taken at different times, and also be used for finding previously recorded points on the images for comparison purposes. | 05-06-2010 |
20100123872 | OPHTHALMOLOGIC APPARATUS - An opthalmologic apparatus changes the wavelength of index light, which is projected on an eye to be examined, by selecting the light emission of a visible LED and an infrared LED, and changes the position of a split unit along an optical axis based on the selection. | 05-20-2010 |
20100165293 | DUAL SCHEIMPFLUG SYSTEM FOR THREE-DIMENSIONAL ANALYSIS OF AN EYE - An apparatus for imaging an eye can include a pair of Scheimpflug imaging systems. Each Scheimpflug imaging system can have respective video cameras and optics configured to direct light reflected from an eye into the video cameras. The apparatus can also have a movable platform configured to move the pair of Scheimpflug imaging systems in accordance with eye movement detected by an eye tracking imaging system. In some embodiments, the Scheimpflug imaging systems can rotate 90 degrees about an optical axis of an eye being examined. | 07-01-2010 |
20100182567 | FUNDUS OCULI OBSERVATION DEVICE AND PROGRAM CONTROLLING THE SAME - [Task] To provide a fundus oculi observation device capable of effectively performing dispersion compensation. | 07-22-2010 |
20100195050 | IMAGING CONTROL APPARATUS FOR CAPTURING TOMOGRAM OF FUNDUS, IMAGING APPARATUS, IMAGING CONTROL METHOD, PROGRAM, AND STORAGE MEDIUM - An imaging control apparatus which controls an imaging unit configured to capture a tomogram of the fundus of a target eye includes an acquisition unit configured to acquire information representing the direction of a fundus movement of the target eye, an analysis unit configured to analyze the direction of the fundus movement based on the information acquired by the acquisition unit, and a control unit configured to control the imaging unit so as to align the direction of imaging of the imaging unit with the direction of the fundus movement based on the analysis result of the analysis unit. | 08-05-2010 |
20100220289 | Optical Alignment Apparatus and Method Therefor - An optical measurement apparatus comprises an optical system ( | 09-02-2010 |
20100238404 | DIAGNOSIS OF OPTICALLY IDENTIFIABLE OPHTHALMIC CONDITIONS - An apparatus for performing multiple procedures involving the eye. The apparatus includes an imager for imaging at least a portion of an eye of a patient, a data collection apparatus for collecting a data set corresponding to at least a portion of an eye of a patient, and a data analysis module. The imager is configured to provide image data. The data collection apparatus is configured to provide data indicative of a neurological disorder. The data analysis module interrelates the image data and the data indicative of a neurological disorder to provide an interpretive result. | 09-23-2010 |
20100259724 | Reflection microscope and method - An apparatus and a method for operating an endothelium reflection microscope. The apparatus includes an optical head, which comprises: (i) an illuminating system, (ii) a frontal eye observation optical system along a central channel in which an alignment-use light spot is received and imaged by a camera having a digital optical sensor, and an enlarged-imaging optical system for enlarged observation or photographing of the subject part by the digital camera. The apparatus further comprises a motor for operating the optical head, and a CPU controller for automatically controlling the motor, the illuminating system and the frontal eye observation optical system. The method comprises an endothelium image acquisition procedure in which the grey level inside a check area of the camera sensor is checked constantly during advancement along the Z-axis; when the grey level reaches a predetermined threshold value, a delay time (Δt) is triggered; and when the delay time (Δt) lapses, acquisition by the digital camera of one or more images of the endothelium is enabled. | 10-14-2010 |
20100277692 | FUNDUS PHOTOGRAPHING APPARATUS - A fundus photographing apparatus includes a first photographing unit arranged to obtain a first fundus image and including a first illumination optical system including a first light source and a scanning unit, a first photographing optical system and a wavefront compensating unit including a wavefront sensor and a wavefront compensating device, a second photographing unit arranged to obtain a second fundus image of a wide area including a scanning area by the scanning unit and including a second illumination optical system and a second photographing optical system arranged to obtain the second fundus image with a wider view angle under lower magnification than the first fundus image, a monitor, and a control unit arranged to display on the monitor the first and second fundus images, and display an indicator on the second fundus image displayed on the monitor, the indicator indicating a photographed portion of the first fundus image. | 11-04-2010 |
20100296057 | OPHTHALMIC DEVICE - An ophthalmic device is provided with a photographing optical system that photographs an eye fundus; an illumination optical system that illuminate the eye fundus; a split target projection optical system that projects a split target for focusing the photographing optical system on the eye fundus; an alignment target projection optical system that projects an alignment target for aligning the photographing optical system with an examining eye; an observation optical system that displays optical images of the eye fundus; and a pseudo-target display processing unit that takes an observation video signal output by the observation optical system in, detects at least one of positions of the split target and the alignment target in the observation video signal, and displays a pseudo-target on the monitor in accordance with the detected position. | 11-25-2010 |
20110001928 | Systems for Imaging Structures of a Subject and Related Methods - Systems for imaging structures of a subject are provided. The subject has an optical axis, a pupil, and a nodal point. The system includes an image capture device; a first structure including a mount for the subject to be imaged by the image capture device, the first structure providing at least two rotational degrees of freedom; a second structure including a mount for the image capture device, the second structure providing at least two translational degrees of freedom; and a means for aligning the image capture device in relation to the optical axis, the pupil, and the nodal point of the subject. | 01-06-2011 |
20110001929 | Fundus photographing apparatus - A fundus photographing apparatus has an optical system including a movable focusing lens and photographing a fundus, an optical system photo-receiving by a first image pickup element a target from an alignment target projection optical system and detect an alignment state of the photographing optical system with respect to an eye based on a result by the first element, a detection optical system photo-receiving by a second image pickup element a target from a focus target projection optical system and detect a focus state adjusted by moving the lens based on a photo-receiving result by the second element, a unit controlling a light source to successively emit flash light at predetermined intervals in a predetermined period to perform fluorescent photographing, and a unit controlling movement of the photographing optical system with respect to the eye based on a result by the alignment detection optical system during the predetermined period. | 01-06-2011 |
20110007274 | OPHTHALMIC APPARATUS - When the fundus camera is positioned on the same side as the subject's eye relative to an appropriate position (front-focus state), the positioning index light source turned on in blue produces most-focused positioning index images. The positioning index light sources become more blurred in order of green and red. When the camera is positioned on the opposite side of the subject's eye relative to the appropriate position (rear-focus state), the positioning index light source turned on in red produces most-focused images. The positioning index light sources become more blurred in order of green and blue. Based on a degree of the blur of the individual positioning index images in red, green, and blue reflected by the cornea of the subject's eye, the calculation unit calculates whether to move the camera body closer to or farther away from the subject's eye and allows the display unit to display the information. | 01-13-2011 |
20110032481 | FUNDUS CAMERA - When a bright spot image A received by an imaging unit is extracted, in step S | 02-10-2011 |
20110043757 | METHOD AND APPARATUS FOR MEASURING MOTION OF A SUBJECT USING A SERIES OF PARTIAL IMAGES FROM AN IMAGING SYSTEM - A line scan imager is used to determine the motion of a subject. Each line of image data from the line scan imager is compared with a reference image. The location of a matching line in the reference image reveals the displacement of the subject. The current subject displacement can be determined based on each line of image data. The resulting displacement information can be used to correctly place other optical beams on the subject. The method can be applied to tracking the human eye to facilitate measurement, imaging, or treatment with a beam of optical radiation. | 02-24-2011 |
20110051089 | FUNDUS IMAGING APPARATUS AND METHOD THEREFOR - A fundus image is displayed, which enables accurate positioning and focusing to be easily performed with respect to an eye to be examined even on a small display unit by selecting a display magnification. At a first display magnification, an opening portion “m” of a mask specifying a predetermined angle of field of the fundus is displayed with no part missed in both of horizontal and vertical directions of a display unit | 03-03-2011 |
20110051090 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - An ophthalmologic photographing apparatus includes an optical system, a pedestal, an auxiliary lens configured to be able to be inserted into and retracted from the optical system, a focusing lens, a focusing lens driving unit configured to move the focusing lens along an optical axis, a pedestal position detection unit configured to detect that the pedestal is away from the subject's eye by a predetermined distance, an auxiliary lens insertion detection unit configured to detect that the auxiliary lens is inserted into the optical system, a storage unit configured to store a position of the focusing lens, and a control unit configured to cause the focusing lens driving unit to move the focusing lens to a predetermined position stored in the storage unit based on outputs from the pedestal position detection unit and the auxiliary lens insertion detection unit. | 03-03-2011 |
20110187995 | PURKINJIE IMAGE-BASED ALIGNMENT OF SUCTION RING IN OPHTHALMIC APPLICATIONS - An alignment device including means for releasably attaching a suction ring and means for applying a pattern of light to an eye of a patient. The alignment device further including means for detecting light reflected from the eye and determining whether the suction ring is aligned relative to the eye based on the detected light. | 08-04-2011 |
20110199579 | IMAGE CAPTURE APPARATUS AND METHOD - It has been very cumbersome to determine whether or not alignment is required before the fundus image is acquired after the tomographic image is acquired, causing the reduction in diagnostic efficiency. An ophthalmic apparatus is provided to solve this problem, which comprises an irradiation unit that irradiates an eye to be inspected with a first beam for acquiring a tomographic image of the eye and a second beam for acquiring a fundus image of the eye, the second beam having a beam diameter larger than the beam diameter of the first beam; and a determination unit that, based on information indicating a shift amount between an irradiation position of the first beam in the eye and an ocular axis of the eye, determines whether or not the irradiation position of the second beam falls within a range in which the fundus image can be acquired. | 08-18-2011 |
20110234978 | Multi-functional Adaptive Optics Retinal Imaging - An optical apparatus includes a system of optical components capable of operating in a scanning laser ophthalmoscope (SLO) mode and an optical coherence tomography (OCT) mode. The system of optical components includes a first optical module for the SLO mode, a second optical module for the OCT mode, and a first scanning device. The first optical module for the SLO mode includes a first source adapted to provide a first imaging beam for the SLO mode and a first detection device configured to receive a first signal associated with a first image of a retina of an eye. The second optical module for the OCT mode includes a second source adapted to provide a second imaging beam for the OCT mode and a second detection device configured to receive a second signal associated with a second image of the retina. The first scanning device is configured to move the first imaging beam along the retina in the slow axis of the SLO mode to acquire the first image and (ii) to move the second imaging beam along the retina in the fast axis of the OCT mode to acquire the second image. | 09-29-2011 |
20110242488 | OPHTHALMIC MEASUREMENT APPARATUS - Provided is an ophthalmic measurement apparatus capable of quickly transferring from measurement of ocular characteristics of one eye to measurement of ocular characteristics of the other eye. An ophthalmic measurement apparatus | 10-06-2011 |
20110292341 | METHOD AND APPARATUS FOR ENHANCED EYE MEASUREMENT - An imaging method according to some embodiments of the present invention includes obtaining working distance information from an optical coherence tomography system, the working distance being the working distance to the sample; obtaining information from one or more ocular systems; combining the information from said optical coherence tomography information and said ocular system; and displaying said combined information. | 12-01-2011 |
20110299037 | Ophthalmic photographing apparatus - A method for obtaining a tomographic image of a fundus by optical coherence tomography includes the steps of setting a line, based on which the fundus tomographic image is to be obtained, on a first front image of the fundus, the first front image being a still image, establishing a positional correspondence between a second front image of the fundus and the first front image by matching the first and second front images, specifying a line on the second front image based on positional information on the line set on the first front image, and the established positional correspondence, and obtaining the fundus tomographic image that corresponds to the lines on the first and second front images by scanning measurement light with the use of an optical scanner provided to an interference optical system. | 12-08-2011 |
20120002166 | OPHTHALMOLOGIC APPARATUS AND OPHTHALMOLOGIC SYSTEM - Provided are a fundus imaging apparatus and a fundus imaging method capable of alleviating loads on an operator and a patient in fundus imaging and of acquiring a high-resolution fundus image. The fundus imaging apparatus having a tracking function is configured to: determine whether or not a template is recorded based on specific information of an eye to be inspected ( | 01-05-2012 |
20120033180 | OPHTHALMIC DEVICE AND METHOD - An ophthalmic device and method actively correcting possible movement of the eye of a patient with respect to the correct positioning during the examination are described. An illumination light beam is provided, that passes through a cross-section of the anterior chamber of the eye to capture an image on the corneal vertex. | 02-09-2012 |
20120033181 | FUNDUS OBSERVATION APPARATUS - The fundus observation apparatus | 02-09-2012 |
20120038886 | OPHTHALMOLOGIC OBSERVATION AND PHOTOGRAPHING APPARATUS - An ophthalmologic observation and photographing apparatus capable of photographing a color image and a fluorescence image includes an illumination unit for illuminating a fundus of a subject's eye, an observation and photographing unit for observing and photographing a specified region of the illuminated subject's eye, a barrier filter insertably mounted to the observation and photographing unit and configured to transmit a fluorescence wavelength range and block excitation light, a color photographing unit including a tri-color separation filter and mounted in the observation and photographing unit, and an index projecting unit for projecting an index light to be photographed by superimposing on an image of the specified region of the subject's eye. The index light passes through the barrier filter, includes a wavelength range different from the fluorescence wavelength range, and can pass through a filter having a wavelength range different from a filter which transmits fluorescence through the most among the tri-color separation filter. | 02-16-2012 |
20120086911 | CORNEAL ENDOTHELIAL CELL PHOTOGRAPHING APPARATUS - An apparatus including: a main unit including a system for irradiating illumination light from a light source to a cornea of an eye from an oblique direction and a system for obtaining a corneal endothelial cell image by receiving reflection light from the cornea by a first imaging element; an anterior segment observation optical system including a second imaging element, the anterior segment observation optical system configured to pick up an anterior segment image of the eye by the second imaging element to observe the anterior segment image from front; a controller adapted to turn on the light source and obtain a plurality of picked-up images output from the first imaging element; and a unit adapted to detect an alignment state of the main unit with respect to the eye based on a picked-up image output from the second imaging element during obtaining of the picked-up images by the controller. | 04-12-2012 |
20120113389 | FUNDUS PHOTOGRAPHING APPARATUS - A fundus photographing apparatus includes a wavefront detecting optical system having a wavefront sensor for receiving reflection light from a fundus and measuring wavefront aberration of an eye, a wavefront compensating device for compensating the wavefront aberration, and a deviation detecting part for detecting deviation information corresponding to deviation between an effective region in which aberration compensation by the wavefront compensating device is effective, and a wavefront measuring region in which the wavefront aberration is measured by the wavefront detecting optical system, with respect to a direction perpendicular to an optical axial direction. | 05-10-2012 |
20120113390 | CONTROL METHOD OF A FUNDUS EXAMINATION APPARATUS - A control method of a fundus examination apparatus configured to examine a fundus of an examinee's eye, includes: processing an examination data obtained by one of fundus examination apparatuses, which are a perimeter configured to measure a visual field and an optical coherence tomography device configured to obtain a tomographic image of the fundus, to thereby obtain positional information relating to an abnormal site of the fundus; setting an examination position on the fundus in the other fundus examination apparatus which is the perimeter or the optical coherence tomography device based on the positional information; and examining the abnormal site of the fundus by controlling the other fundus examination apparatus based on the set examination position. | 05-10-2012 |
20120162602 | Imaging Accessory Frame for Integration with an Operating Microscope - Some embodiments of the present inventive concept provide an accessory frame including an optical coherence tomography (OCT) imaging head. The accessory frame includes a mounting plate including a microscope field lens attachment port and a microscope field plate anchor pin. The mounting plate is configured to receive an intermediate field lens in the microscope field lens attachment port such that the accessory frame shares the mounting plate in common with an intermediate field lens. | 06-28-2012 |
20120169996 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - An ophthalmologic photographing apparatus includes an optical system, a pedestal, an auxiliary lens configured to be able to be inserted into and retracted from the optical system, a focusing lens, a focusing lens driving unit configured to move the focusing lens along an optical axis, a pedestal position detection unit configured to detect that the pedestal is away from the subject's eye by a predetermined distance, an auxiliary lens insertion detection unit configured to detect that the auxiliary lens is inserted into the optical system, a storage unit configured to store a position of the focusing lens, and a control unit configured to cause the focusing lens driving unit to move the focusing lens to a predetermined position stored in the storage unit based on outputs from the pedestal position detection unit and the auxiliary lens insertion detection unit. | 07-05-2012 |
20120188510 | OPTICAL COHERENCE TOMOGRAPHIC IMAGING METHOD AND OPTICAL COHERENCE TOMOGRAPHIC IMAGING APPARATUS - In an OCT apparatus used in ophthalmology, if a working distance between an eye to be inspected and an objective lens varies, a shape of an obtained tomographic image is changed. This means that the OCT apparatus cannot be used for examining a variation of eyeball shapes. Provided is an optical coherence tomographic imaging method, including: acquiring a first distance between the eye to be inspected and the objective lens, corresponding to first tomographic image of the eye to be inspected; and correcting the first tomographic image to be second tomographic image corresponding to a second distance between the eye to be inspected and the objective lens, which is different from the first distance. | 07-26-2012 |
20120200825 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus comprises an optical measurement system that radiates measurement light to an eye to be examined, an imaging unit that takes a cross sectional image of the eye by using reflected light of the measurement light from the eye, and a controller that controls the optical measurement system and the imaging unit. When the optical measurement system is positioned at a measurement position, the controller obtains a two-dimensional cross sectional image by the imaging device. One axis of the two-dimensional cross sectional image extends in a vertical direction of the eye, and another axis of the two-dimensional cross sectional image extends in a depth direction of the eye. The controller determines whether the eye is in an examinable state or not based on the two-dimensional cross sectional image. | 08-09-2012 |
20120200826 | OPHTHALMIC MEASUREMENT DEVICE - Provided is a technique that makes it possible to carry out more accurately alignment of a device optical system by a simpler method in measuring an optical characteristic at an anterior ocular segment of an eye of examinee's by an ophthalmic measurement device. In measuring an optical characteristic at an anterior ocular segment of an eye (A) of examinee's, an adjustment of positional relationship between the eye (A) of examinee's and a measurement optical system is carried out by utilizing reflection lights (B, C, D), i.e., the light (B) generated by reflection of the irradiated light from the infrared L.E.D. ( | 08-09-2012 |
20120218518 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD THEREFOR - An ophthalmologic apparatus images a cross-section of the cornea of the eye to be examined based on return light from the eye illuminated with measurement light, measures a corneal thickness from a cornea cross-sectional image of the imaged eye, and corrects the corneal thickness based on the position of the cornea cross-sectional image on an imaging plane. | 08-30-2012 |
20120242955 | FUNDUS PHOTOGRAPHING APPARATUS - A fundus photographing apparatus for photographing a fundus of an examinee's eye includes: a photographing part including a photographing optical system for photographing the fundus; a mechanism for moving the photographing part; a presenting part for presenting a fixation target to the eye; an alignment detecting optical system including a light receiving element to detect an alignment state of the photographing part; and a setting part for setting an alignment completion position in a back and forth direction of the photographing part relative to the eye based on the detected alignment state. The alignment completion position includes a first alignment completion position information to be set when an optical axis of the photographing part is in a predetermined range relative to a corneal vertex of the eye and a second alignment completion position information to be set when the optical axis is apart from the predetermined range. | 09-27-2012 |
20120249961 | FUNDUS INSPECTION APPARATUS - In an OCT device, even if an alignment according to a pupil center and a position where a tomographic image can be photographed at a good position may be different according to a subject, automatic alignment is continued at a position where an image quality is good. In a fundus inspection apparatus, an initial adjustment target position on an obtained anterior ocular segment image and an optical axis of a measurement optical system are coincided with each other, and then initial position adjustment is performed. When an instruction for moving an initial adjustment target position is issued, the measurement optical system is moved by a moving amount corresponding to the instruction. At the same time, the initial adjustment target position on the anterior ocular segment image is changed to a position after the movement of the measurement optical system, and positional adjustment is performed again. | 10-04-2012 |
20120249962 | OPTICAL COHERENCE TOMOGRAPHY APPARATUS, IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM OF PROGRAM - An optical coherence tomography apparatus includes a generation unit configured, based on interfering light produced by interfering a return beam and a reference beam of light emitted toward the object to be measured, to generate tomographic images of an object to be measured, an image processing unit configured to perform image processing for increasing image quality to at least one of the tomographic images generated by the generation unit, and a display control unit configured to display one of the tomographic images generated by the generation unit and then display the image on which the image processing is performed by the image processing unit on a display unit. | 10-04-2012 |
20120249963 | OPHTHALMIC SYSTEM - An ophthalmic system including an ophthalmic apparatus for acquiring an image of an anterior portion of a subject's eye and a tomographic image of the subject's eye includes a display control unit configured to cause a display unit to display the image of the anterior eye portion and the tomographic image, and an instruction unit configured to, if a pointer which indicates a point on the display unit is on the image of the anterior eye portion, give an instruction to change a distance between the subject's eye and the ophthalmic apparatus, and if the pointer is on the tomographic image, give an instruction to change the position of a coherence gate. | 10-04-2012 |
20120257166 | PORTABLE SELF-RETINAL IMAGING DEVICE - A portable MEMS-based scanning laser ophthalmoscope (MSLO). In one example, the MSLO includes a laser illumination sub-assembly, a two-dimensional MEMS scanning mirror, a conic front objective, and a detector sub-assembly all disposed within a portable housing. A battery configured to provide power to components of the MSLO may also be included within the housing. In one example, the laser illumination sub-assembly includes at least one laser configured to generate in each of two orthogonal dimensions one or more illumination beams separated from one another by a predetermined angle of separation. The MEMS scanning minor and conic front objective are configured to produce a two-dimensional area of illumination from the illumination beam(s) in each dimension and to direct the illumination from the scanning minor to the eye to illuminate the retina. | 10-11-2012 |
20120274903 | Systems for Imaging Structures of a Subject and Related Methods - Systems for imaging structures of a subject are provided. The subject has an optical axis, a pupil, and a nodal point. The system includes an image capture device; a first structure including a mount for the subject to be imaged by the image capture device, the first structure providing at least two rotational degrees of freedom; a second structure including a mount for the image capture device, the second structure providing at least two translational degrees of freedom; and a means for aligning the image capture device in relation to the optical axis, the pupil, and the nodal point of the subject. | 11-01-2012 |
20120281185 | IMAGE-PROCESSOR-CONTROLLED MISALIGNMENT-REDUCTION FOR OPHTHALMIC SYSTEMS - An ophthalmic system is provided that includes an ophthalmic imaging device to generate an image of a portion of an imaged eye of a patient, an image processor to determine a misalignment of the imaged eye and the imaging device by processing the generated image, and to generate a control signal according to the determined misalignment, and a misalignment-reduction system to receive the control signal, and to generate a misalignment-reduction response. The misalignment-reduction system can include a fixation light system or a gantry. In some cases a locator light system may provide additional alignment information for the image processor. | 11-08-2012 |
20120320339 | OPHTHALMOLOGIC APPARATUS, OPHTHALMOLOGIC SYSTEM, CONTROLLING METHOD FOR OPHTHALMOLOGIC APPARATUS, AND PROGRAM FOR THE CONTROLLING METHOD - Provided is an image processing apparatus capable of solving a problem that a curvature of an acquired retina image varies in accordance with a working distance (WD) when the retina image is acquired by an OCT apparatus. The image processing apparatus includes: an image acquiring unit configured to acquire a tomographic image of a fundus of an eye to be inspected; a calculating unit configured to calculate a working distance, based on a predetermined layer of the tomographic image, a coherence gate position, and an axial length of the eye to be inspected, at a time when the tomographic image is acquired; and a correcting unit configured to correct the tomographic image based on the working distance. | 12-20-2012 |
20120320340 | SMART-PHONE ADAPTER FOR OPHTHALMOSCOPE - An adapter system connects a smart-phone or other camera to an ophthalmoscope or other viewing instrument at multiple locations with a single bracket. A fitting attached to the bracket connects the adapter to the viewing instrument in the region near its view port, close to the optical axis. A brace attached to the bracket connects the adapter to the viewing instrument in the region of the instrument's handle or other support structure, located away from the optical axis. The brace has a frame that holds the camera in place and aligns the camera lens with the optical axis of the instrument. The processor of the smart-phone or other mobile communications device can provide specific information related to the particular viewing instrument and can also be used in the operation and control of smart-scope instruments through a communications link. | 12-20-2012 |
20120327366 | FUNDUS CAMERA - An ophthalmologic apparatus including an index projection unit to project an index on a cornea of a subject's eye, an imaging unit to form an image on an imaging plane via an objective lens and capture an image of the index projected on the cornea, and a control unit to control a distance between the subject's eye and the object lens so that a size of the captured index becomes a predetermined size. | 12-27-2012 |
20130016320 | IMAGING CONTROL APPARATUS, OPHTHALMIC IMAGING APPARATUS, IMAGING CONTROL METHOD, AND PROGRAMAANM Naba; TakashiAACI Kawasaki-shiAACO JPAAGP Naba; Takashi Kawasaki-shi JP - An imaging control apparatus capable of causing a first imaging unit to capture a fundus image of a subject's eye and causing a second imaging unit to capture a tomographic image of the subject's eye includes a control unit configured to cause the first imaging unit to capture an image of the fundus of the subject's eye in a limited area smaller than the fundus image, a detection unit configured to detect a positional deviation of the fundus of the subject's eye based on an image of the area acquired according to the control, and a correction unit configured to correct an image capturing position of the tomographic image captured by the second imaging unit based on the detected positional deviation. | 01-17-2013 |
20130021577 | ANTERIOR SEGMENT MEASURING APPARATUS - An anterior segment measuring apparatus includes: a light projecting optical system for forming a light section on an anterior segment; a light receiving optical system for obtaining a cross-sectional image of the anterior segment by scattering of the light section at the anterior segment; a displacement detection unit for detecting displacement in a direction orthogonal to the light section between the position where the actual cross-sectional image is acquired and the position of the expected cross-sectional image; and a controller for forming the cross-sectional image of the anterior segment, processing the cross-sectional image to measure the anterior segment, and correcting a measurement result for the anterior segment based on a detection result by the displacement detection unit. | 01-24-2013 |
20130050649 | IMAGING-BASED GUIDANCE SYSTEM FOR OPHTHALMIC DOCKING USING A LOCATION-ORIENTATION ANALYSIS - An imaging-guided docking system can separate the tilt and location of an imaged ophthalmic target and present them in an intuitive manner for an ophthalmic surgeon. The docking system can include an ophthalmic imaging system to image a portion of an eye of a patient, an image processor to determine a location and an orientation of the imaged portion of the eye, and a guidance system, coupled to the ophthalmic imaging system, to guide an ophthalmic docking based on the determined location and orientation. In some implementations, the imaging system images an internal eye-structure to determine its orientation and a video-imaging system video-images a frontal eye-structure to determine a location of the frontal eye-structure. The determined orientation and location can be displayed for the surgeon. The alignment of ophthalmic procedures can also be assisted with this imaging capability, e.g. the placement and centration of IOLs into the lens capsule. | 02-28-2013 |
20130070203 | OPTICAL INSTRUMENT ALIGNMENT SYSTEM - An ophthalmic apparatus for precisely positioning an optical instrument, such as a wavefront aberrometer, in three dimensions with respect to a patient's eye. The ophthalmic apparatus may include an optical instrument directed in a first direction toward a target area to receive light therefrom and a camera directed in a second direction toward the target area to receive light therefrom, the first and second directions being non-parallel. The camera may include imaging optics to form an optical image on a photodetector array using light reflected from the target area. The ophthalmic apparatus may also include a processor configured to correlate a position of the optical image on the photodetector array with the distance between the optical instrument and the target area. | 03-21-2013 |
20130093998 | METHOD AND APPARATUS FOR DETERMINING EYE TOPOLOGY - A method and apparatus for measuring the topography of the corneal and scleral regions of the eye. The measurements provide surface contours that are useful in the manufacture of scleral contact lenses. | 04-18-2013 |
20130100407 | OPHTHALMOLOGIC APPARATUS AND OPHTHALMOLOGIC PHOTOGRAPHING METHOD - An ophthalmologic apparatus including a splitting unit configured to split, on a light path in an optical observation system of an anterior segment of a subject's eye, an anterior segment image into a plurality of light beams at a position conjugated with the anterior segment, and an imaging unit configured to capture the anterior segment image via an image forming unit configured to form an image of the light beams coming from the anterior segment, split by the splitting unit. | 04-25-2013 |
20130107212 | THREE-AXIS POSITIONING DEVICE AND METHOD FOR OPHTHALMIC EXAMINATION INSTRUMENT | 05-02-2013 |
20130107213 | OPHTHALMOLOGIC APPARATUS | 05-02-2013 |
20130162948 | SYSTEM AND METHOD FOR AUTO-RANGING IN OPTICAL COHERENCE TOMOGRAPHY - A system, in one embodiment, includes an optical coherence tomography (OCT) imaging system having a light source configured to emit light. The OCT imaging system further includes a beam splitter configured to receive the light from the light source, split the light into a first light portion directed along a sample arm comprising a sample and a second light portion directed along a reference arm comprising a reference mirror, receive a first reflected light portion from the sample arm and a second reflected light portion from the reference arm, combine the first and second reflected light portions to obtain an interference signal. Further, the OCT imaging system includes a controller having logic configured to perform an auto-ranging process to match the reference arm with the sample arm. | 06-27-2013 |
20130194548 | PORTABLE RETINAL IMAGING DEVICE - A portable MEMS-based scanning laser ophthalmoscope (MSLO). In one example the MSLO includes a laser illumination sub-assembly that generates a laser illumination beam, a two-dimensional MEMS scan mirror configured to receive and scan the laser illumination beam over at least a portion of the retina of an eye to be imaged, an optical system configured to direct the laser illumination beam from the scan mirror into the eye to illuminate the retina, and a detector sub-assembly configured to intercept optical radiation reflected from the eye to generate an image of the retina. The optical system includes a polarized beamsplitter positioned between the scan minor and the eye and configured to direct the laser illumination beam to into the eye and to direct the optical radiation reflected from the eye to the detector sub-assembly. | 08-01-2013 |
20130208242 | OPHTHALMIC APPARATUS, METHOD FOR CONTROLLING OPHTHALMIC APPARATUS, AND STORAGE MEDIUM - An ophthalmic apparatus comprising: an illumination optical system including a light source and configured to illuminate an eye to be examined; an imaging optical system including an image sensor and configured to image the eye illuminated by the illumination optical system; an optical member insertion/removal unit configured to insert/remove an optical member in/from at least one of optical paths in the illumination optical system and the imaging optical system; and a notification unit configured to notify an insertion/removal state of the optical member with respect to the optical path based on a signal output from the image sensor in synchronism with insertion/removal of the optical member in/from the optical path. | 08-15-2013 |
20130235346 | SYSTEM AND METHODS FOR DOCUMENTING AND RECORDING OF THE PUPILLARY RED REFLEX TEST AND CORNEAL LIGHT REFLEX SCREENING OF THE EYE IN INFANTS AND YOUNG CHILDREN - Systems and methods for documenting, recording, and interpreting the eccentric photorefraction, pupillary light reflex and the corneal light reflex eye screening tests in infants and young children. The system includes a computing device having an image capturing device, a light generating device, and a display. The system includes a computer application that is executable on the computing device and operative to utilize the computing device to perform eye screening tests. The system also includes a website that allows users to upload captured images from the computing device, so that the images may be processed, analyzed, and recorded. | 09-12-2013 |
20130250243 | RETINAL IMAGING DEVICE INCLUDING POSITION-SENSITIVE OPTICAL TRACKING SENSOR - A retinal imaging device is provided comprising an optical stage, one or more illumination sources, an optical system, a position-sensitive optical tracking sensor, a retinal image sensor, and a tracking controller. The illumination sources are configured to direct an illumination beam onto a cornea of an eye under examination where the illumination beam undergoes both specular and diffuse reflection. The position-sensitive optical tracking sensor comprises a non-image forming sensor configured to generate a signal indicative of the relative positioning of relatively low and high intensity portions of an optical signal incident on the sensor, in at least two dimensions. The optical system is configured to direct diffuse reflections from a cornea of an eye under examination to an input face of the position-sensitive optical tracking sensor and the tracking controller is configured to utilize an intensity distribution signal from the position-sensitive optical tracking sensor to control an optical alignment function of the optical stage, relative to a cornea of an eye under examination. | 09-26-2013 |
20130258286 | OPTICAL COHERENCE TOMOGRAPHY IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An optical coherence tomography imaging apparatus that captures a tomographic image of a subject's eye using interference light based on light from a wavelength-swept light source includes a region acquisition unit configured to acquire an imaging target region, a display control unit configured to display information about the acquired imaging target region, and an imaging unit configured to capture a tomographic image by scanning the imaging target region in the subject's eye using light from the wavelength-swept light source. | 10-03-2013 |
20130265547 | FUNDUS PHOTOGRAPHING APPARATUS - A fundus photographing apparatus includes a measurement unit including an optical coherence tomography system for obtaining a tomographic image of the fundus of an examinee's eye by detecting an interference state between measurement light from the fundus of the examinee's eye and reference light, a detection unit for detecting an alignment state perceived as a relative positional relationship between the measurement unit and the examinee's eye, and a controller for adjusting the optical coherence tomography system with respect to the fundus of the examinee's eye based on a detection result from the detection unit. The adjustment of the optical coherence tomography system includes at least one of an optical path length adjustment, which adjusts an optical path length difference between the measurement light and the reference light, and a focus adjustment. | 10-10-2013 |
20130278898 | CORNEA IMAGING APPARATUS AND CORNEA IMAGING METHOD - A cornea imaging apparatus including: a collimation axis holding mechanism; an imaging mechanism; a Z-direction actuating means; an X-direction actuating means and a Y-direction actuating means; an inclination angle changing means that changes an inclination angle of an imaging center axis of the imaging mechanism against a collimation axis of an eye under examination; an endothelial configuration computing means that determines a corneal endothelial configuration; and a normal vector computing means that determines a normal vector direction at a given imaging position of the corneal endothelial configuration, wherein at the imaging position, the inclination angle and positions in the Z and X directions are set adjusted so as to align the imaging center axis of the imaging mechanism with the normal vector direction determined by the normal vector computing means. | 10-24-2013 |
20130286350 | CORNEAL ENDOTHELIAL CELL PHOTOGRAPHING APPARATUS - A corneal endothelial cell photographing apparatus includes: a main unit that includes an illumination optical system, an imaging optical system, and a fixation optical system; a setting unit configured to preliminarily set illumination positions and an illumination order of the plurality of fixation lamps; a controller configured to obtain an endothelial image at a first fixation position, control the fixation optical system corresponding to a determination result for propriety of the endothelial image obtained at the first fixation position to light a fixation lamp corresponding to a second fixation position preliminarily set by the setting unit, and control the illumination optical system and the imaging optical system to obtain an endothelial image at the second fixation position; a monitor configured to display the endothelial image; and an operating unit configured to input a signal for operating at least the controller. | 10-31-2013 |
20130321771 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes a first light source configured to emit a first measuring beam, a second light source configured to emit a second measuring beam having a center wavelength longer than that of the first measuring beam, a third light source configured to emit a third measuring beam having a center wavelength shorter than that of the first measuring beam, a first acquisition unit configured to obtain a first image of the subject's eye by using the return beam of the second measuring beam from the subject's eye, aberration of which has been corrected by a correction unit, and a second acquisition unit configured to obtain an anterior eye portion image of the subject's eye to be used for alignment, by using a return beam of the third measuring beam from the subject's eye. | 12-05-2013 |
20130335704 | INTUITIVE TECHNIQUES AND APPARATUS FOR OPHTHALMIC IMAGING - Apparatus and techniques can include using one or more of a portable or fixed optical system to obtain images of a desired anatomical target, such as the fundus region of a human eye. The optical system can include one or more of a laser-based focusing target, a laser-based fixation target, or a removable or adjustable alignment assembly. Such an alignment assembly can provide or allow user alignment based on using anatomical landmarks other than the fundus being imaged. One or more of the apparatus or techniques can be implemented in an optical assembly included as a portion hand-held fundus camera, such as including or using a consumer or commercial digital camera to capture an image. | 12-19-2013 |
20140028976 | FUNDUS PHOTOGRAPHING APPARATUS - A fundus photographing apparatus includes: a photographing unit including a fundus illumination optical system to illuminate a fundus of a patient's eye and a fundus photographing optical system having a light receiving element to obtain a fundus image of the illuminated eye; and an alignment unit to position the photographing unit with the eye based on a predetermined alignment reference position. The alignment unit includes: an extracting part to extract, by image processing, an image region formed by reflection light from a portion other than the fundus from the fundus image obtained by the fundus photographing optical system; a gravity center calculating part to determine, by arithmetic processing, a gravity center position of the extracted image region; and a control part to perform alignment control of the photographing unit with the eye based on the calculated gravity center position and the alignment reference position. | 01-30-2014 |
20140028977 | OPHTHALMOLOGIC APPARATUS AND ALIGNMENT METHOD - Provided is an ophthalmologic apparatus capable of executing accurate automatic alignment even for an eye having an intraocular lens (IOL) implanted therein. The ophthalmologic apparatus includes: an optical system including a light beam projecting unit for projecting a light beam to an eye to be inspected, and a light receiving unit for receiving a reflection light beam from the eye to be inspected; a detecting unit for detecting a plurality of bright spot images from the reflection light beam received by the light receiving unit; and a calculating unit for calculating an alignment status between the eye to be inspected and the optical system based on the detected plurality of bright spot images. The ophthalmologic apparatus is further provided with a selection unit for selecting bright spot images to be used for the calculation by the calculating unit, from among the plurality of bright spot images. | 01-30-2014 |
20140028978 | OPHTHALMOLOGIC APPARATUS AND OPHTHALMOLOGIC METHOD - In order to automatically determine whether an eye to be inspected is an IOL eye by using bright spot images on a cornea for inspection at high accuracy, an ophthalmologic apparatus is provided with: a light beam projecting unit for projecting a light beam on the cornea of the eye to be inspected; a light receiving unit including an image pickup element for receiving a reflection light beam obtained by reflection of the light beam projected by the projecting unit to obtain cornea bright spot images from the cornea of the eye to be inspected; and an IOL eye determining unit for determining whether the eye to be inspected is the IOL eye based on the cornea bright spot images received by the light receiving unit. | 01-30-2014 |
20140063460 | OPHTHALMIC APPARATUS, METHOD OF CONTROLLING OPHTHALMIC APPARATUS AND STORAGE MEDIUM - An ophthalmic apparatus comprising: an acquisition unit configured to acquire a first fundus image of an eye and a second fundus image of the eye; a first generation unit configured to generate, by performing processing of enhancing contrast of a first, characteristic region of a part of the first fundus image, an image which corresponds to the first characteristic region; a second generation unit configured to generate, by performing processing of enhancing contrast of a second characteristic region of a part of the second fundus image which corresponds to the first characteristic region, an image which corresponds to the second characteristic region; and a correction unit configured to correct an acquisition position of a tomographic image of the eye based, on a positional displacement between the images which respectively correspond to the first and second characteristic regions. | 03-06-2014 |
20140111770 | OPHTHALMOLOGIC APPARATUS, AND OPHTHALMOLOGIC CONTROL METHOD AND PROGRAM - An ophthalmologic apparatus, when an output result of an imaging unit provided in an optical path of an imaging optical system satisfies a predetermined condition, stops controlling a driving unit in at least one direction based on a positional relationship of an image of the light flux, which has been reflected by a cornea of the subject's eye and regulated by a light flux regulation unit provided in the optical path of the imaging optical system, and maintains the control of the driving unit in the other directions. | 04-24-2014 |
20140118697 | OPHTHALMOLOGIC APPARATUS AND METHOD FOR CONTROLLING THE SAME - An adaptive optics (AO) optical system is used, to perform accurate alignment between the AO optical system and a subject's eye. An ophthalmologic apparatus according to the present invention includes a positional relationship change unit (e.g., a driving mechanism including a stage for moving the apparatus) configured to change a positional relationship between a subject's eye and an optical system including an aberration measurement unit (e.g., a Shack-Hartmann wavefront sensor) in a first irradiation state of the subject's eye with measurement light, and an irradiation state change unit (e.g., a mechanism for changing an irradiation position) configured to change an irradiation state of the subject's eye with the measurement light from the first irradiation state to a second irradiation state for correcting an aberration of the subject's eye based on a measurement result of the aberration measurement unit. | 05-01-2014 |
20140132922 | OPTICAL ANGULAR MEASUREMENT SYSTEM FOR OPHTHALMIC APPLICATIONS AND METHOD FOR POSITIONING OF A TORIC INTRAOCULAR LENS WITH INCREASED ACCURACY - An ophthalmic system for use in performing angular measurements in relation to a patient's eye. The ophthalmic system can include an optical angular measurement device that can provide angular indicia by, for example, projecting an image of an angular measurement reticle onto a patient's eye or by superimposing an image of an angular measurement reticle onto an image of the patient's eye. The ophthalmic system can include an optical refractive power measurement device for providing desired angular orientations for ocular implants or for incisions. The ophthalmic system can be used, for example, to align a toric intraocular lens to a desired angular orientation. | 05-15-2014 |
20140132923 | OPHTHALMIC IMAGING APPARATUS, CONTROL METHOD FOR OPHTHALMIC IMAGING APPARATUS, AND STORAGE MEDIUM - An ophthalmic imaging apparatus including an observation light source configured to emit observation light for observation of an eye to be examined and an imaging light source configured to emit imaging light for imaging the eye, the apparatus comprises a photometry unit configured to acquire a photometric value of an observation image of the eye illuminated by the observation light source; an alignment processing unit configured to perform alignment processing to match the eye with a target position; an imaging light amount adjusting unit configured to adjust a light amount of the imaging light source by using the photometric value before completion of the alignment processing; and an imaging processing unit configured to image the eye by using a light amount adjusted by the imaging light amount adjusting unit after completion of the alignment processing. | 05-15-2014 |
20140132924 | OPHTHALMIC APPARATUS AND ALIGNMENT DETERMINATION METHOD - An ophthalmic apparatus that determines whether alignment with a subject eye is complete using an observation image of an anterior ocular segment of the subject eye obtained through a split prism determines whether or not the alignment is a success or failure based on a position of a pupil image on respective lines of a line pair that are parallel to a boundary of the split prism and are equidistant from the boundary in the observation image. The ophthalmic apparatus determines the success or failure of alignment for a plurality of line pairs whose distances from the boundary are different, and determines whether or not the alignment is complete based on the obtained determination results. | 05-15-2014 |
20140132925 | OPHTHALMOLOGIC APPARATUS AND METHOD THEREOF - In order to detect a position alignment state between an apparatus and an eye to be inspected in a working distance direction with high precision at a high speed in the apparatus side, an ophthalmologic apparatus is disclosed. The position alignment state between the eye to be inspected and the apparatus in the working distance direction is detected by evaluating a contrast of an index image that is obtained as a reflection image of an index projected onto an anterior ocular segment, and a contrast of the index image is evaluated using a ratio or a difference between pixel numbers of the index image in at least two or more gray scale values. | 05-15-2014 |
20140132926 | OPHTHALMIC IMAGING APPARATUS, CONTROL METHOD FOR OPHTALMIC IMAGING APPARATUS, AND STORAGE MEDIUM - An ophthalmic imaging apparatus having an automatic transition function for transiting from an anterior ocular observation state to a fundus observation state, an autofocus function performed during fundus observation, and an automatic image capturing function performed when fundus alignment is complete, the apparatus comprising: a first control unit configured to control the automatic transition function, the autofocus function, and the automatic image capturing function to be deactivated in response to a first user operation; and a second control unit configured to control the deactivated automatic transition function, autofocus function, and automatic image capturing function to be reactivated in response to a second user operation. | 05-15-2014 |
20140132927 | OPHTHALMIC APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM - A ophthalmic apparatus includes: an imaging unit configured to obtain, through a photographing optical system, an image of an eye to be examined which is illuminated with illumination light from an observation light source of an illumination optical system; a display unit configured to display the image obtained by the imaging unit; and an image processing unit configured to display an image of the eye on the display unit at a display magnification corresponding to an observation portion of the eye or a display magnification corresponding to operation of the imaging unit. | 05-15-2014 |
20140132928 | OPHTHALMOLOGIC APPARATUS AND OPHTHALMOLOGIC IMAGING METHOD - In order to prevent inaccurate position detection caused by overlapping between a position alignment index and an optic papilla of a fundus in position alignment between an eye to be inspected and an apparatus when a fundus image is photographically captured, an ophthalmologic apparatus includes: a projection unit configured to project a plurality of alignment indices onto an eye to be inspected; an optic papilla position detection unit configured to detect an optic papilla position of the eye to be inspected; and an alignment detection unit configured to detect a positional relation between the eye to be inspected and an apparatus main body from a reflection image of the alignment index, wherein the alignment detection unit performs alignment detection by selecting a reflection image of at least one of the reflection images of the plurality of alignment indices depending on the optic papilla position. | 05-15-2014 |
20140160432 | Self-Aligning Unobtrusive Active Eye Interrogation - Methods and system for determining a physiological parameter of a subject through interrogation of an eye of the subject with an optical signal are described. Interrogation is performed unobtrusively. The gaze direction of the eye of the subject is determined and an interrogation signal source and/or response signal sensor are moved into alignment with the eye using an actuator to facilitate detection of the signal from the eye of the subject. | 06-12-2014 |
20140168604 | OPHTHALMOLOGY APPARATUS AND METHOD OF CONTROLLING OPHTHALMOLOGY APPARATUS - An ophthalmology apparatus includes: an aberration measuring unit configured to measure an aberration of an eye to be examined on the basis of returned light from the eye to be examined irradiated with measurement light, and a change unit configured to change a size of an irradiating area in the aberration measurement unit to be irradiated with the returned light. | 06-19-2014 |
20140185009 | Ophthalmological Apparatus, Alignment Method, and Non-Transitory Recording Medium - An ophthalmological apparatus includes an image acquisition unit configured to acquire images of different magnifications, a decision unit configured to decide, based on at least the acquired images or capture conditions of the acquired images, a method for capturing an image of an intermediate magnification that is between the magnifications of the acquired images, and an alignment unit configured to align the acquired images. | 07-03-2014 |
20140204341 | OPHTHALMIC IMAGING APPARATUS - There is provided an ophthalmic imaging apparatus including an optical coherence tomography (OCT) optical system for acquiring a tomographic image of a subject eye, an observation optical system configured to acquire a front image of the subject eye. The apparatus functions as an image generation unit which repeatedly generates the tomographic image based on an output signal from the OCT optical system, and repeatedly generates the front image based on an output signal from the observation optical system, a determination unit which detects a positional deviation between a reference front image and each of front images generated by the image generation unit, and determines consecutiveness of the front images whose positional deviation satisfies a permissible range, and a selection process unit which selects one of multiple tomographic images generated by the image generation unit, based on a determination result by the determination unit. | 07-24-2014 |
20140204342 | IMAGE PROCESSING APPARATUS - An image processing apparatus configured to process a tomographic image of an object to be examined, includes: a processor; and memory storing computer readable instructions, when executed by the processor, causing the image processing apparatus to: set a reference line, which is used as a reference for setting a cross sectional position, on a front image of the object, the cross sectional position being one of a position where a two-dimensional tomographic image is acquired from three-dimensional data of the object, and a position where measurement light for generating a tomographic image is scanned; and set the cross sectional position having a predetermined angle as an angle relative to the set reference line. | 07-24-2014 |
20140211162 | OPHTHALMOLOGIC APPARATUS AND METHOD FOR CONTROLLING THE SAME - An ophthalmologic apparatus includes an imaging unit for imaging the fundus image of a subject's eye, a displacement acquisition unit for acquiring the displacement of an imaging position by the imaging unit between fundus images captured by the imaging unit, and a display control unit for displaying the fundus image captured by the imaging unit and a region of interest on the display unit so that the region of interest is positioned at a predetermined position of the fundus image based on the displacement acquired by the displacement acquisition unit and displaying the region of interest on the display unit by changing a size of the region of interest according to an range where the fundus image is captured. | 07-31-2014 |
20140218688 | APPARATUS AND METHOD FOR IMAGING AN EYE - A slit lamp mounted eye imaging a slit lamp integrated, a handheld, OCT integrated, or attached to a separate chinrest-joystick assembly apparatus for producing a wide field and/or magnified views of the posterior or the anterior segments of an eye through an undilated or dilated pupil. The apparatus images sections and focal planes and utilizes an illumination system that uses one or more LEDs, shifting optical elements, flipping masks, and/or aperture stops where the light can be delivered into the optical system on optical axis or off axis from center of optical system and return imaging path from the eye, creating artifacts in different locations on the eye image. Image processing is employed to detect and eliminate artifacts and masks from images. The apparatus can be used in combination with an OCT, microscope and can be disposed in a hand-held housing for hand-held use. | 08-07-2014 |
20140240674 | AUTOMATIC ALIGNMENT OF AN IMAGER - Embodiments of automatically aligning imager are presented. In accordance with some embodiments, an imaging system includes an adjustment stage; an auto-alignment optics mounted on the adjustment stage and coupled to image an object, the auto-alignment optics including at least one video camera providing an image of the object; imaging scanning optics mounted on the adjustment stage and coupled to scan the object; an imager coupled to the imaging scanning optics; and a processor coupled to the adjustment stage and the auto-alignment optics, the processor executing instructions to receive the image of the object and adjust the adjustment stage to align the optics with the imaging scanning optics. | 08-28-2014 |
20140268053 | Eye Imaging Apparatus - An optical device combination with a portable electronic device utilizes a user's autonomic response to truth/false or beneficial/non-beneficial stimulus and provides immediate feedback to the user in the context of an applied kinesiology exam. Through measurements of the pupils dilation or constriction and processing of the measurements by the portable electronic device, the response is obtained and feedback is provided that reflects the pupillary response. The device and method effectively eliminate the subjective components of prior art muscle testing response from the hands of the testing user as well as providing a simple convenient and portable attachment to a user's smart phone. | 09-18-2014 |
20140293225 | DEVICES, SYSTEMS, AND METHODS FOR CALIBRATING AN OCT IMAGING SYSTEM IN A LASER SURGICAL SYSTEM - An adjustment system for an Optical Coherence Tomography (OCT) imaging system includes an OCT light source; a beam splitter, splitting the OCT light beam into an imaging beam to an imaging arm, and a reference beam to a reference arm; a probe, guiding the imaging beam onto a target and receiving a returned imaging beam from the target; the beam splitter generating an interference beam from the returned imaging beam and a returned reference beam from the reference arm; an imaging detector, detecting the interference beam; an imaging processor, generating an OCT image from the detected interference beam; and an adjustment device, removably coupled to the probe, the adjustment device comprising the target attached to a distal region of a target holder at a working distance from a distal end of the imaging probe, wherein an optical length of the reference arm is adjustable to improve a calibration of the OCT image. | 10-02-2014 |
20140300866 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus of an embodiment includes an examination part, moving mechanism, two or more imaging parts, extracting part and controller. The examination part includes an optical system for optically examining an eye. The moving mechanism moves the optical system. The two or more imaging parts obtain moving images of the eye from two or more different directions. The extracting part extracts a partial image from each of two or more images substantially simultaneously obtained by the two or more imaging parts. The controller carries out display control for displaying in real time two or more partial images extracted by the extracting part with an arrangement in accordance with the positional relationship thereof on a display means and movement control for controlling the moving mechanism based on an instruction input from an operation means. | 10-09-2014 |
20140307228 | OPHTHALMOLOGIC APPARATUS, METHOD FOR CONTROLLING OPHTHALMOLOGIC APPARATUS, AND PROGRAM - An ophthalmologic apparatus is configured to determine a direction in which a target that is used to adjust a working distance comes into focus based on an influence of astigmatism contained in a cornea reflection image of an eye to be examined. | 10-16-2014 |
20140313483 | OPTICAL SYSTEM AND MEASUREMENT METHOD THEREOF - An optical system for measuring an observed object includes an illuminant component, an imaging component, and an optical component. The illuminant component generates a measuring light. The optical component including a mirror and a beam splitter is located between the illuminant component and the imaging component. The mirror is located between the illuminant component and the observed object, the beam splitter is located between the mirror, the observed object, and the imaging component. The measuring light is projected to the observed object via the mirror and beam splitter, and an imaging light that has been generated from the illuminant component and reflected by the observed object is projected to the imaging component via the beam splitter, the imaging light and the measuring light intersect at the beam splitter. The present invention also provides a measurement method. | 10-23-2014 |
20140333895 | OCULAR AXIAL LENGTH MEASUREMENT APPARATUS - An ocular axial length measurement apparatus is provided with: a measurement section for obtaining the ocular axial length of an examinee's eye by using an optical interferometer; a drive mechanism for adjusting the relative positions of the measurement section and the examinee's eye; an operation section operated by an examiner; and a control unit. The ocular axial length measurement apparatus is equipped with an ultrasonic probe for obtaining length information in an axial direction of the examinee's eye in advance, or configured to mount the ultrasonic probe. The control unit, when measuring the eye using the ultrasonic probe, changes a setting at the time of measuring the eye using the ultrasonic probe based on an operation signal output from the operation section. | 11-13-2014 |
20140347631 | OPHTHALMOLOGIC IMAGING APPARATUS AND CONTROL METHOD THEREFOR - Provided is an ophthalmologic imaging apparatus capable of imaging with reduced imaging time based on a combination of an imaging type and a mydriatic state of an eye to be inspected. The ophthalmologic apparatus includes an acquiring unit configured to acquire information about a mydriatic state of a pupil of a person to be inspected, and a determining unit configured to determine an imaging order for imaging one of left and right eyes of the person to be inspected a plurality of times and imaging the other eye in accordance with the information about the mydriatic state acquired by the acquiring unit. | 11-27-2014 |
20150085252 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus which is capable of preferably executing position matching between an eye and optical system is provided. An ophthalmologic apparatus of an embodiment includes an examination optical system, supporting part, driver, two or more imaging parts, analyzer and controller. The examination optical system is used for an examination of the eye. The supporting part supports a face of a subject. The driver moves the examination optical system and the supporting part relatively and three-dimensionally. The two or more imaging parts substantially simultaneously photograph an anterior eye part of the eye from different directions. The analyzer obtains a three-dimensional position of the eye by analyzing two or more photograph images acquired by the two or more imaging parts substantially simultaneously. The controller controls the driver based on the three-dimensional position to relatively move the examination optical system and the supporting part. | 03-26-2015 |
20150085253 | OPTICAL COHERENCE TOMOGRAPHY-BASED OPHTHALMIC TESTING METHODS, DEVICES AND SYSTEMS - In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data | 03-26-2015 |
20150124219 | ULTRA WIDE-FIELD OPTICAL COHERENCE TOMOGRAPHY - Systems and methods for expanding the field-of-view of ophthalmic scanning devices are presented. An ophthalmic scanning device is designed such that the pivot point of the scanning optics is maintained at a fixed location in the pupil while the scanning optics are rotated about the eye to obtain imaging data over an increased field-of-view than can be achieved by the scanning optics alone. The rotation can be achieved using a singular rotational motion of the scanning optics about a rotational axes coincident with the scanning pivot point or can be achieved using a combination of rotational motion with a second motion either rotational or translational to maintain the scanning pivot point at the fixed location. Embodiments related to optical coherence tomography and scanning laser ophthalmoscopy are described. | 05-07-2015 |
20150305619 | SYSTEMS AND METHODS FOR REMOTE MEASUREMENT OF THE EYES AND DELIVERING OF SUNGLASSES AND EYEGLASSES - The present disclosure provides methods, devices, and systems for automated measured correction of the eyes and provision of sunglasses and eyeglasses for individuals, including individuals with a visual acuity of 20/20 or better. Methods, devices and systems for remote measurement of refraction by an examiner away from the measurement system are also disclosed. | 10-29-2015 |
20150313467 | FUNDUS IMAGING APPARATUS - A fundus imaging apparatus includes a scanning optical system, a control circuit, and an image forming unit. The scanning optical system scans a fundus of a subject's eye with light from a light source, and receives return light from the fundus by a light receiver. The control circuit controls the scanning optical system such that a scanning locus is formed by the light in the fundus. The image forming unit forms an image of the fundus based on a light receiving signal from the light receiver and a position of the scanning locus. The control circuit is capable of performing an alignment mode, in which the control circuit controls the scanning optical system to project an alignment indicator for aligning the scanning optical system with the subject's eye on the fundus based on the light from the light source. | 11-05-2015 |
20150313468 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus capable of performing suitable examination according to the state of the eye includes an examination optical system used to examine an eye, a drive part, two or more imaging parts, an analyzer, and a controller. The drive part moves the examination optical system. The two or more imaging parts substantially simultaneously photograph the anterior segment of the eye from different directions. The analyzer analyzes photographic images captured by the two or more imaging parts to obtain the three-dimensional position of the eye, and displacement information indicating the displacement direction and displacement amount of the eye due to eye movement. The controller performs a first alignment process of controlling the drive part based on the three-dimensional position to move the examination optical system and a second alignment process of controlling the drive part based on the displacement information to move the examination optical system. | 11-05-2015 |
20150313469 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD THEREFOR - An ophthalmologic apparatus wherein auto alignment and manual alignment can be selectively used to enhance alignment accuracy between an eye to be inspected and an ophthalmic part includes an ophthalmic part that detects an eye to be inspected, a fixing part, a movable part on which the ophthalmic part is placed and configured to be movable with respect to the fixing unit in a horizontal direction, a drive part that transmits electric drive force for horizontal movement of the movable part, an alignment detection unit that detects a relative position between the eye to be inspected and ophthalmic part, a controller that controls the movable part based on a detection result from the alignment detection unit, and a drive force transmit switching unit that switches whether or not to execute transmission of the drive force from the drive part to the movable part. | 11-05-2015 |
20150335234 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes an examination optical system, drive part, two or more imaging parts, analyzer, storage, position corrector, and controller. The examination optical system examines an eye. The drive part moves the examination optical system. The imaging parts substantially simultaneously photograph the anterior segment of the eye from different directions. The analyzer analyzes two or more photographic images captured substantially simultaneously by the imaging parts to obtain a three-dimensional position of the eye. The storage stores correction information in advance. The correction information is acquired based on optical properties of eyeballs, and used to correct the position of the eye in the optical axis direction of the examination optical system. The position corrector corrects the three-dimensional position obtained by the analyzer based on the correction information. The controller controls the drive part based on the three-dimensional position corrected to move the examination optical system. | 11-26-2015 |
20150335237 | OPHTHALMOLOGIC OBSERVATION APPARATUS - A measuring optical system of an ophthalmologic observation apparatus of an embodiment performs OCT of an eye. An image forming part forms an image based on information acquired by OCT. A preliminary operation performing part performs a plurality of preliminary operations for OCT. Storage stores, for at least one specific preliminary operation among the plurality of preliminary operations, operating condition information including a transferring condition for transferring to a different preliminary operation and a terminating condition for terminating a specific preliminary operation in advance. A controller controls the preliminary operation performing part to commence a specific preliminary operation, controls the preliminary operation performing part to commence a different preliminary operation when the transferring condition of this specific preliminary operation is satisfied, and controls the preliminary operation performing part to terminate this specific preliminary operation when the terminating condition of this specific preliminary operation is satisfied. | 11-26-2015 |
20150351631 | SYSTEMS AND METHODS FOR IMPROVED OPHTHALMIC IMAGING - Systems and methods for improving ophthalmic imaging by correlating the location of a measurement on the pupil of the eye with a quality of the measurement and further controlling subsequent measurements based on the quality are presented. Aspects of the invention include obtaining optical coherence tomography (OCT) measurements through cataracts or other media opacities, obtaining B-scans with minimized tilt, and automated OCT data acquisition of select structures in the eye. Embodiments of the invention directed towards imaging tissues with angle dependent layer contrast and mapping the size and location of cataracts in the eye are also described. | 12-10-2015 |
20160000318 | OPTICAL MEASUREMENT SYSTEM AND METHOD INCLUDING BLINK RATE MONITOR AND/OR TEAR FILM BREAKUP DETECTOR - An optical measurement system and method measure a characteristic of a subject's eye. The optical measurement system receives from an operator, via a user interface of the optical measurement instrument, a begin measurement instruction indicating the start of a measurement period for objectively measuring at least one characteristic of the subject's eye. Subsequent to receiving the begin measurement instruction, the optical measurement system determines whether a criterion associated with the tear film quality of the subject's eye is not satisfied. In response to determining that the criterion is not satisfied, the optical measurement instrument takes one or more corrective actions to measure the characteristic of the subject's eye under a condition wherein the criterion is satisfied. | 01-07-2016 |
20160007850 | EYE IMAGING APPARATUS WITH A WIDE FIELD OF VIEW AND RELATED METHODS | 01-14-2016 |
20160045109 | METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR POSITIONING PUPIL - A method, an apparatus and a computer program product for positioning pupil are provided. A pupil contour is obtained from a pupil image after the pupil image is obtained. And an ellipse feature is obtained according to curvature information of the pupil contour, and then a sight direction is determined according to the ellipse feature. | 02-18-2016 |
20160051138 | OPTICAL MEASURING DEVICE AND METHOD - An optical measuring device is provided. An actuator of a reference mirror set drives a reference mirror to move back and forth at a scan velocity. A first light source module transmits a first light beam to an optical coupling module transmitting two parts of the first light beam respectively to an examinee object and the reference mirror set. The first light beam then is reflected by the examinee object and reference mirror set and then transmitted to the optical coupling module and the processing unit. The second light source module transmits a second light beam to the examinee object. Then the second light beam is reflected and then transmitted to the second sensing unit. The second sensing unit provides a sensing signal to the processing unit which accordingly provides a value of the relative velocity. The thickness is calculated according to the relative velocity and the scan velocity. | 02-25-2016 |
20160051139 | OPTICAL COHERENCE TOMOGRAPHIC IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An optical coherence tomographic imaging apparatus includes a movement amount acquisition unit configured to acquire the amount of subject's eye movement based on a plurality of images of the subject's eye acquired at different times, a determination unit configured to determine whether the amount of subject's eye movement before a scan by the scanning unit exceeds a threshold value, and a control unit configured to, in a case the amount of subject's eye movement before the scan is equal to or smaller than the threshold value, control the scanning unit to perform scanning position correction between a scan and the next scan based on the amount of movement. | 02-25-2016 |
20160081548 | Ophthalmoscope Device - An ophthalmoscope device includes a support structure, an image capture device, and a display device. The support structure is configured to be worn by a subject. The image capture device is configured to capture images of the eye fundus of the subject. The display device is configured to overlay images in the field of view of the subject. The overlaid images are used to align the pupil/fovea orientation axis with the optical axis of the image capture device. | 03-24-2016 |
20160095514 | OPHTHALMOLOGIC SYSTEM AND METHOD OF OPERATING THE SAME - An ophthalmologic system comprising and eye tracker and an OCT system. A method of operating the ophthalmologic system comprises: providing data representing a placement of a first B-scan performed on an eye relative to the eye; performing a measurement on the eye using the eye tracker; determining a placement of the eye relative to the ophthalmologic system based on the measurement using the eye tracker; placing the eye relative to a reference placement of the OCT system based on the provided data and the determined placement; performing A-scans on the eye at at least three A-scan positions; determining a placement of a second B-scan relative to the OCT system based on at least one of the at least three A-scans and the provided data such that the second B-scan and the first B-scan have a substantially same placement relative to the eye; and generating a representation of the second B-scan. | 04-07-2016 |
20160100754 | OPHTHALMIC APPARATUS AND OPHTHALMIC APPARATUS CONTROL METHOD - An ophthalmic apparatus includes a display control unit configured to cause a display unit to display a fundus image of an eye to be inspected, which is obtained by photographing an image of a fundus of the eye to be inspected by using a photographing optical system, an input unit configured to input whether to store the displayed fundus image, and a selecting unit configured to select, if it is input that the display fundus image is not to be stored, whether to execute rephotograph after automatically controlling a driving unit for driving at least one of a focusing portion formed in the photographing optical system and a photographing unit including the photographing optical system, or to execute rephotograph after manually controlling the driving unit. | 04-14-2016 |
20160106316 | OPHTHALMOLOGIC IMAGING APPARATUS - An ophthalmologic imaging apparatus includes a housing configured to include an optical system that irradiates a subject's eye with measurement light and receives returning light returned from the subject's eye irradiated with the measurement light, a rotation unit configured to rotate the housing by making a predetermined position on an optical axis of the optical system as a rotation center, a position changing unit configured to change a position of the rotation center on the optical axis of the optical system, and a holding unit configured to hold a positional relationship between the housing and the subject's eye when the position of the rotation center on the optical axis of the optical system is changed. | 04-21-2016 |
20160120405 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus of an embodiment includes a focusing indicator projector, a fundus imaging unit, a driver, and a focusing controller. The focusing indicator projector is configured to irradiate light fluxes for projecting a pair of focusing indicators onto a fundus of an eye. The fundus imaging unit is configured to capture an image of the fundus. The driver is configured to move an optical system including the focusing indicator projector, the fundus imaging unit, and a focusing lens. The focusing controller is configured to move the focusing lens based on projection images of the focusing indicators captured by the fundus imaging unit, wherein the projection images are captured along with movement of the optical system by the driver. | 05-05-2016 |
20160128564 | Ophthalmic Apparatus - An ophthalmic apparatus which photographs an endothelial cell and measures a coat thickness of a cornea of an eye to be examined in a non-contact manner; comprising an image pickup unit ( | 05-12-2016 |
20160143529 | OPHTHALMOLOGICAL APPARATUS - An ophthalmological apparatus includes an optical system, a display device, a subject's eye position acquisition processor, and a control processor that acquires information on positional displacement of the optical system for inspection with respect to the subject's eye on the basis of the three-dimensional position to allow an alignment index image for performing alignment of the optical system for inspection with respect to the subject's eye in accordance with the information on positional displacement to be displayed in a screen of the display device in a pseudo manner, where the control processor has a plurality of display modes, in each of which the alignment index image is displayed in a different display form to allow the alignment index image to be displayed in the screen of the display device in a display mode selected from the plurality of display modes in a pseudo manner. | 05-26-2016 |
20160166140 | DEVICE FOR AND METHOD OF CORNEAL IMAGING | 06-16-2016 |
20160183788 | SYSTEMS AND METHODS FOR ALIGNMENT OF THE EYE FOR OCULAR IMAGING - An ocular alignment system for aligning a subject's eye with an optical axis of an ocular imaging device comprising one or more guide light and one or more baffle configured to mask the one or more guide light from view of the subject such that the one or more guide light is only visible to the subject when the eye of the subject is aligned with the optical axis of an ocular imaging system. | 06-30-2016 |
20160183789 | USER INITIATED AND FEEDBACK CONTROLLED SYSTEM FOR DETECTION OF BIOMOLECULES THROUGH THE EYE - A system for detecting biomolecules in a user's eye having a head and tracking system positioned a comfortable distance from the user that provides positioning cues for the user, an optical system for providing scans of the user's eye, and a controller that operates the head and tracking system and the optical system and perform a risk analysis based on data from the scans. | 06-30-2016 |
20160198947 | Portable Wavefront Aberrometer with Open Field Alignment Channel | 07-14-2016 |
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20180020915 | System and Method for Eye Tracking During Retinal Imaging | 01-25-2018 |