Including Eye Photography Patents (Class 351/206)
-
Patent number: 11347052Abstract: There is provided a display control apparatus capable of displaying a high-quality image while inhibiting a load at the time of displaying the image in front of a user. There is provided a display control apparatus including a signal processing unit that performs signal processing in which a first mode and a second mode are switchable at a first region in a screen and a region other than the first region in the screen, display being performed at a first resolution in the first mode, display being performed at a second resolution in the second mode, in which the signal processing unit performs display while reducing a resolution in the second mode toward an outer periphery of the screen.Type: GrantFiled: September 3, 2018Date of Patent: May 31, 2022Assignee: SONY CORPORATIONInventor: Yusuke Onoyama
-
Patent number: 11337607Abstract: An ophthalmic imaging apparatus comprising: an illumination light source and an optical assembly for directing light from the light source into an eye of a subject; a photosensor array comprising a plurality of photosensors positioned for acquiring images of portions of a fundus of the eye; an objective lens positioned along an imaging axis intersecting a point on the fundus of the eye wherein the objective lens is positioned for refracting light that has been reflected by the fundus to form an image of the fund us on an image plane of the objective lens such that the image plane is positioned away from the photosensor array; and a microlens array comprising a plurality of microlenses wherein the microlens array is spaced away from and positioned behind the image plane and wherein the microlens array is positioned in between the image plane and the photosensor array such that each microlens in the array projects a different view of the image formed at the image plane thereby forming an array of elemental imagType: GrantFiled: March 29, 2018Date of Patent: May 24, 2022Assignee: Integral Scopes Pty Ltd.Inventors: Anjali Jaiprakash, Douglas Palmer, Donald Gilbert Dansereau, Thomas Coppin, Krishan Rana, Jonathan Roberts, Ross Crawford
-
Patent number: 11337604Abstract: A method to image an in vivo object in an eye includes illuminating an object in the eye by a light source; configuring one or more detectors to receive light from a conjugate plane behind a confocal plane of the object, the conjugate plane acting as a light screen; receiving at the one or more detectors a backscattered light from the light source which has been refracted at least in part by the object before being backscattered from the light screen to provide a detector data; and processing the detector data over a time period by a computer to generate information about the object.Type: GrantFiled: October 22, 2019Date of Patent: May 24, 2022Assignee: University of RochesterInventors: Raul Andres Guevara-Torres, Jesse Schallek, Aby Joseph
-
Patent number: 11333901Abstract: Disclosed is a method for determining the position of the eye rotation center of a subject's eye including: providing a geometric model of an eye, the eye being modeled with one sphere for the sclera and one ellipsoid for the cornea of the eye, the position of the eye rotation center being the distance between a center of the sclera and an apex of the cornea and being determined based on a set of personal parameters including a first geometric dimension of the eye, each personal parameter distinct from the position of the eye rotation center; determining a value of each personal parameter; and determining a first approximate value of eye position rotation center based on the geometric model using the personal parameters. Also disclosed is a method for calculating a personalized ophthalmic lens for the eye using such center, as well as a device implementing this method.Type: GrantFiled: June 29, 2018Date of Patent: May 17, 2022Assignee: Essilor InternationalInventor: Didier Grand-Clement
-
Patent number: 11324398Abstract: A method is provided for observing structure and function of individual cells in a living human eye, comprising: using an adaptive optics optical coherence tomography (AO-OCT) system to image a volume of a retinal patch including numerous cells of different types, as for example, ganglion cells; using 3D subcellular image registration to correct for eye motion, including digitally dissecting the imaged volume; and using organelle motility inside the cell to increase cell contrast and to measure cell temporal dynamics.Type: GrantFiled: July 25, 2019Date of Patent: May 10, 2022Assignee: Indiana University Research and Technology CorporationInventors: Donald Thomas Miller, Zhuolin Liu, Kazuhiro Suzuki, Furu Zhang
-
Patent number: 11307330Abstract: A variable focal length optical system includes: an imaging lens configured to condense a parallel beam of light from an objective lens to form an intermediate image; a relay system including, in sequence from an object side, a first relay lens and a second relay lens and configured to relay the intermediate image to infinity; and a lens system of a liquid resonant type which is located between the first relay lens and the second relay lens. A front principal point of the lens system is located to be conjugated with an exit pupil of the objective lens and an expression, 1.90?fTube/fR1?2.15, is satisfied. In the expression, fTube denotes a focal length of the imaging lens and fR1 denote a focal length of the first relay lens.Type: GrantFiled: January 14, 2021Date of Patent: April 19, 2022Assignee: MITUTOYO CORPORATIONInventors: Koji Kubo, Yuko Shishido
-
Patent number: 11298019Abstract: An ophthalmologic apparatus includes an acquisition unit and a controller. The acquisition unit includes an optical scanner capable of deflecting light in a predetermined deflection angle range. The acquisition unit is configured to acquire data of a subject's eye by performing A-scan on the subject's eye using optical coherence tomography by measurement light deflected by the optical scanner. The controller is configured to cause the acquisition unit to perform A-scan based on a deflection operation state of the optical scanner.Type: GrantFiled: December 18, 2019Date of Patent: April 12, 2022Assignee: TOPCON CORPORATIONInventors: Ryoichi Hirose, Tatsuo Yamaguchi
-
Patent number: 11291363Abstract: An automatic strabismus detection mechanism includes a housing and an eyepiece arranged on the housing. A lens mechanism located on a same axis as the eyepiece is arranged in the housing. The lens mechanism is provided with a rotating mechanism for adjusting an angle of refraction. The automatic strabismus detection mechanism includes technical effects of being composed of the lens mechanism and automatically controlled to generate 0 to 50 prism degrees; the volume is small and the weight is light, which is lighter than that of a triangular prism block made of ordinary glass; and the manufacturing cost is low, which is about one fifth of the price of a lens row. Therefore, with the automatic strabismus detection mechanism, a variety of equipment and instruments based on the principle of triangular prism spectroscopic detection or dispersion is greatly improved, and development of related instruments and equipment is facilitated.Type: GrantFiled: November 29, 2018Date of Patent: April 5, 2022Inventor: Dongguang Liu
-
Patent number: 11294174Abstract: The present application provides a virtual image display apparatus. The virtual image display apparatus includes an image source configured to produce imaging illumination; an optical relay configured to receive the imaging illumination from the image source, and configured to transmit a detection light having an aberrated wavefront representing imaging distortion in a virtual image displayed by the virtual image display apparatus; a wavefront sensor configured to receive the detection light, and configured to detect wavefront aberration information from the detection light; and a wavefront correction processor configured to receive the wavefront aberration information from the wavefront sensor, and configured to adjust in real time the imaging illumination produced by the image source to reduce the imaging distortion in real time.Type: GrantFiled: June 8, 2018Date of Patent: April 5, 2022Assignee: BOE Technology Group Co., Ltd.Inventor: Yanjun Chen
-
Patent number: 11295128Abstract: An example embodiment includes: a determination unit that, based on an image including an eye of a recognition subject, determines whether or not a colored contact lens is worn; and a matching unit that, when it is determined by the determination unit that the colored contact lens is worn, performs matching of the iris by using a feature amount extracted from a region excluding a predetermined range including an outer circumference of the iris out of a region of the iris included in the image.Type: GrantFiled: August 30, 2018Date of Patent: April 5, 2022Assignee: NEC CORPORATIONInventors: Mamoru Inoue, Jinit Bhatt
-
Patent number: 11283975Abstract: An imaging device includes a housing having a surface that can engage the face of a patient. A cavity is at least partially defined by the surface. An anterior imaging system includes an optical lens barrel positioned inside the cavity, and the optical lens barrel includes a variable focus lens at one end and an image sensor array at an opposite end. One or more illumination LEDs are positioned around the periphery of the optical lens barrel at opposite sides of the variable focus lens, and are configured to illuminate the cavity to capture images of an anterior of the eye.Type: GrantFiled: December 21, 2018Date of Patent: March 22, 2022Assignee: Welch Allyn, Inc.Inventors: Thomas A. Myers, Christian H. Reinke, Carlos A. Suarez, Ynjiun P. Wang
-
Patent number: 11259700Abstract: Ocular surface interferometry devices, systems, and methods are disclosed for imaging an ocular tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image, wherein the specularly reflected light may be produced from various portions of the ocular tear film by obliquely illuminating various portions of the ocular tear film with a multi-wavelength light source, such as in a tiling pattern(s). The imaging device can also be focused on the lipid layer to capture a second image containing the background signal(s) present in the first image. The second image can be subtracted from the first image to reduce and/or eliminate the background signal(s) in the first image to produce a resulting image, which can used to measure a tear film layer thickness.Type: GrantFiled: February 5, 2020Date of Patent: March 1, 2022Assignee: TearScience IncInventors: Donald R. Korb, William L. Weber, Randal B. Chinnock, Benjamin T. Gravely, Stephen M. Grenon
-
Patent number: 11262184Abstract: An optical coherence tomography (OCT) system for profilometry measurements of a specimen with a lateral resolution across the profilometry measurements is provided. The OCT system includes a line-field generator, an interferometer, and a spectrometer. The line-field generator includes a filter arranged in a focal plane of a lens for spatially filtering extended line-field light into a line-field light of a width equal to the lateral resolution. The interferometer is configured to interfere the line-field light reflected from the specimen illuminated with a line-shaped focus with a reference signal of the line-field light to produce an interference pattern. The spectrometer configured to analyze spectral components of the interference pattern in a digital domain to produce the profilometry measurements of the specimen.Type: GrantFiled: October 28, 2020Date of Patent: March 1, 2022Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: David Millar, Celalettin Yurdakul, Pu Wang, Kieran Parsons
-
Patent number: 11253151Abstract: A multispectral or hyperspectral ocular surface evaluating device is disclosed, comprising an illumination projector, which comprises a broadband illumination source panel and a polarizing structure to illuminate an ocular surface and adjacent structures of an eye and project a pattern on the ocular surface; an imaging system to form images; a detection system to record the images with a plurality of spectral channels in visible and near infrared spectra; and a computer to display and analyze the images. Also disclosed is a method of evaluating ocular surface health using a multispectral or hyperspectral ocular surface evaluating device, which comprises illuminating an ocular surface and adjacent structures of an eye with polarized light from an illumination projector; forming images with the imaging system; recording images formed on the detection system; digitally processing the recorded images; and analyzing the recorded images to evaluate ocular surface health with the computer.Type: GrantFiled: September 8, 2019Date of Patent: February 22, 2022Inventor: Aizhong Zhang
-
Patent number: 11253198Abstract: The present invention is a Miniature Vein Enhancer that includes a Miniature Projection Head. The Miniature Projection Head may be operated in one of three modes, AFM, DBM and RTM. The Miniature Projection Head of the present invention projects an image of the veins of a patient which aids the practitioner in pinpointing a vein for an intravenous drip, blood test, and the like. The Miniature projection head may have a cavity for a power source or it may have a power source located in a body portion of the Miniature Vein Enhancer. The Miniature Vein Enhancer may be attached to one of several improved needle protectors, or the Miniature Vein Enhancer may be attached to a body similar to a flashlight for hand held use. The Miniature Vein Enhancer of the present invention may also be attached to a magnifying glass, a flat panel display, and the like.Type: GrantFiled: November 16, 2017Date of Patent: February 22, 2022Assignee: AccuVein, Inc.Inventors: Fred Wood, Ron Goldman, Stephen P. Conlon, Vincent Luciano
-
Patent number: 11246481Abstract: The present disclosure provides systems and methods for characterizing thin films, such as, for example, diagnosis of dry eye syndrome, thin-film optical metrology testing, etc. The present disclosure may be embodied as a tearscope, which is sometimes referred to herein as a Macroscopic Imaging Ellipsometer (MIE) because it may be considered to be an imaging ellipsometer with, for example, a field-of-view on the order of tens of millimeters or more (i.e., macroscopic), compared with conventional imaging ellipsometers, which usually employ microscope objectives and have fields-of-view of up to several hundred microns.Type: GrantFiled: May 29, 2019Date of Patent: February 15, 2022Assignee: University of RochesterInventors: James M. Zavislan, Aizhong Zhang
-
Patent number: 11238279Abstract: According to various embodiments, an electronic device may include a first light emitter comprising first light emitting circuitry configured to output light of a first wave bandwidth, a second light emitter comprising second light emitting circuitry configured to output light of a second wave bandwidth, a camera including an image sensor configured to arrange one or more first pixels for sensing the light corresponding to the first wave bandwidth and the second wave bandwidth and one or more second pixels for sensing the light corresponding to the second wave bandwidth, and a processor. The processor may be configured to control the electronic device to output the first wave bandwidth light using a first light source and the second wave bandwidth light using a second light source, and a control circuit electrically coupled to the image sensor and connected to an application processor through a designated interface.Type: GrantFiled: March 1, 2019Date of Patent: February 1, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Woontahk Sung, Hwayong Kang, Jongsun Kim, Kihuk Lee, Bongchan Kim
-
Patent number: 11224342Abstract: The invention relates to a device and a method for examining the retinal vascular endothelial function of the vessels of the retina at the fundus (F) of a patient's eye. Using a fundus camera, the vessels of the retina are stimulated with flicker light during a stimulation phase and sequences of images of areas of the fundus (F) are recorded, from which vascular parameters are derived which describe the retinal vascular endothelial function of the vessels. By imaging a macula stop (MB), which covers the macula, onto the fundus (F), the fundus (F) can be illuminated with a higher light intensity, which improves the stimulation effect and the image quality and/or reduces the strain on the patient.Type: GrantFiled: July 26, 2018Date of Patent: January 18, 2022Assignee: IMEDOS SYSTEMS GMBHInventors: Walthard Vilser, Jens Haueisen, Sascha Klee, Dietmar Link, Thomas Riemer, Martin Skorsetz
-
Patent number: 11219366Abstract: According to an embodiment of the present disclosure, there is provided a retina photographing apparatus including: a body unit including a case providing an outer appearance of the retina photographing apparatus, and a holder connected to the case and being mountable on an examinee's head; a retina photographing unit installed inside the case, and configured to irradiate light onto a retina of the examinee's left or right eye and to detect the light reflected from the retina to acquire an image of the retina; and a driving unit configured to move a position of the retina photographing unit inside the case in order to photograph both of the examinee's eyes.Type: GrantFiled: January 30, 2018Date of Patent: January 11, 2022Assignee: ROOTEEHEALTH, INC.Inventors: Kyung Min Kook, Su Ryeon Kim
-
Patent number: 11219365Abstract: The present subject matter relates to an ophthalmologic imaging apparatus, which can capture reflex-free retinal images of a subject's eye. The imaging apparatus comprises light sources arranged on an illumination axis. A first shield placed at a distance from a first condenser lens, which is placed in front of a photographic light source on the illumination axis. The first shield has a central opaque portion on which an observation light source is mounted, and an outer pair of coaxial annular transparent regions. A diffuser is placed in front of the observation light source. A second shield has a central opening portion and mounted on the diffuser. The imaging apparatus further comprises a porosity mirror mounted on a porosity tube.Type: GrantFiled: September 4, 2017Date of Patent: January 11, 2022Assignee: REMIDIO INNOVATIVE SOLUTIONS PVT. LTD.Inventors: Shanmuganathan Nagarajan, Anand Sivaraman
-
Patent number: 11222187Abstract: A scanner is provided having an integrated or retrofitted amber filter placed in front of white illumination LEDs. When an object/item is placed within a field of view of a lens of the scanner, the white illumination LEDs are illuminated and pass through the amber filter, which filters out light in the light spectrum of approximately 340-500 nm. The object/item is illuminated with light approximately above 500 nm and reflected back through a portion of the lens that covers an imaging sensor resulting in an object/item image in the light spectrum approximately above 500 nm, which improves the user experience by removing the glaring blue light component of the white LEDs illumination while not impacting the performance of the object/item recognition when processed for a transaction being conducted at a transaction terminal that is interfaced to the scanner.Type: GrantFiled: June 29, 2020Date of Patent: January 11, 2022Assignee: NCR CorporationInventor: Frank Shearer
-
Patent number: 11213208Abstract: A multispectral imaging device in accordance with one embodiment comprises: an illumination unit for emitting LED lighting to the skin for skin illumination; and a detection unit for causing light reflected from the skin to be incident on a camera, wherein the illumination unit is arranged on the outer side of the detection unit, so that a path of the LED lighting emitted from the illumination unit is formed on the outer side of the detection unit, and a path of the light reflected from the skin is formed on the inner side of the detection unit.Type: GrantFiled: March 7, 2017Date of Patent: January 4, 2022Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jae Youn Hwang, Jae Eun Jang, Man Jae Kim
-
Patent number: 11213202Abstract: An ophthalmologic apparatus includes an SLO system, a projection system, a first image former, a second image former, a displacement processor, and a controller. The SLO system is configured to scan a target eye with first light deflected by an first optical scanner. The projection system is configured to project second light deflected by an second optical scanner onto the target eye. The first image former is configured to form a first image of the target eye based on a scan result of a first scan region using the first optical scanner. The second image former is configured to form a second image of the target eye based on a scan result of a second scan region using the first optical scanner, the second scan region being narrower than the first scan region. The displacement processor is configured to calculate a displacement between a partial image in the first image and the second image, the partial image corresponding to the second image.Type: GrantFiled: September 26, 2019Date of Patent: January 4, 2022Assignee: TOPCON CORPORATIONInventors: Masahiro Shibutani, Tatsuo Yamaguchi, Toshihiro Mino, Ryoichi Hirose
-
Patent number: 11206978Abstract: Meta-lens based ocular imaging, near-eye display, and eye-tracking systems are described. The systems can include a single focusing optic and an integrated circuit that provides illumination light and includes an imaging array. The focusing optic includes meta-atoms formed on a substrate. The systems may have no moving parts and achieve imaging or image-projection fields-of-view approaching or exceeding 180 degrees. Because of their low part count, the systems can be robust and have a very small form factor.Type: GrantFiled: February 1, 2021Date of Patent: December 28, 2021Assignee: Massachusetts Institute of TechnologyInventors: Juejun Hu, Tian Gu, Mikhail Shalaginov, Fan Yang
-
Patent number: 11191429Abstract: A device to determine a state of the lacrimal layer of the eye includes at least one light source arranged to form a pattern of source points for projecting a plurality of light rays onto a cornea surface; a lens-camera system arranged to receive a respective plurality of reflected light rays reflected on the cornea surface, thereby forming a pattern of image points; and a computational unit arranged to determine on the basis of the image points the state of the lacrimal layer of the eye and/or to determine on the basis of the image points data representative for the state of the lacrimal layer of the eye and to provide the data representative for the state of the lacrimal layer of the eye to a user.Type: GrantFiled: February 23, 2018Date of Patent: December 7, 2021Assignee: Cassini Technologies B.V.Inventors: Maarten Pieter Huijbregtse, Haaije Rimmer De Vries
-
Label-free contrast enhancement for translucent cell imaging by purposefully displacing the detector
Patent number: 11185222Abstract: A method for imaging vertebrate translucent retinal structures includes: imaging a translucent retinal structure at a first imaging plane in the retina with a light source focused at such first imaging plane, and detecting reflected light with a non-confocal off-axis detector, wherein the detector is axially displaced from a plane conjugate to the first imaging plane to a plane conjugate to a reflective layer deeper in the retina along a path of illumination from the light source.Type: GrantFiled: November 30, 2018Date of Patent: November 30, 2021Assignee: University of RochesterInventors: Raul Andres Guevara-Torres, Jesse Schallek -
Patent number: 11185221Abstract: An ophthalmologic apparatus includes an OCT measurement unit, a corneal shape measurement unit, an eyeball model generator, and a site specifying unit. The OCT measurement unit is configured to acquire data of a subject's eye by deflecting measurement light using an optical scanner to project onto the subject's eye and detecting interference light between returning light of the measurement light from the subject's eye and reference light. The corneal shape measurement unit is configured to obtain curvature radius distribution on a cornea by detecting returning light of a measurement pattern projected onto a cornea of the subject's eye. The eyeball model generator is configured to generate an eyeball model using the curvature radius distribution on the cornea.Type: GrantFiled: August 14, 2019Date of Patent: November 30, 2021Assignee: TOPCON CORPORATIONInventors: Makoto Saika, Tsutomu Kikawa
-
Patent number: 11164313Abstract: The present invention relates to a method of assisting in diagnosis of a target heart disease using a retinal image, the method including: obtaining a target retinal image which is obtained by imaging a retina of a testee; on the basis of the target retinal image, obtaining heart disease diagnosis assistance information of the testee according to the target retinal image, via a heart disease diagnosis assistance neural network model which obtains diagnosis assistance information that is used for diagnosis of the target heart disease according to the retinal image; and outputting the heart disease diagnosis assistance information of the testee.Type: GrantFiled: March 3, 2020Date of Patent: November 2, 2021Assignee: MEDI WHALE INC.Inventors: Tae Geun Choi, Geun Yeong Lee, Hyung Taek Rim
-
Patent number: 11164322Abstract: Disclosed is an eyeball movement analysis system. The eyeball movement analysis system includes an image capturing unit configured to acquire a first image of an eyeball at a reference location and acquire a second image of the eyeball at a moved location, and an eyeball movement analyzing unit configured to calculate a rotational angle of the eyeball and a translational distance of the eyeball in a process of moving the eyeball from the reference location to the moved location through comparison of the first image and the second image.Type: GrantFiled: September 4, 2019Date of Patent: November 2, 2021Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Han Woong Lim, Won June Lee, Yumi Song
-
Patent number: 11160449Abstract: A method of imaging an interior of an eye includes illuminating the interior of the eye with one or more beams of light from a light source, and said illuminating is configured to trigger a change to a pupil of the eye. An image sensor captures a sequence of images of light reflected by the interior of the eye during an expected timeframe when a width of the pupil is changing in response to said illuminating. A processing apparatus combines images in the sequence of images to form a composite image having a larger depth of field than a depth of field of each of the images in the sequence of images. The depth of field for each of the images corresponds to the width of the pupil when each of the images is captured.Type: GrantFiled: July 26, 2018Date of Patent: November 2, 2021Assignee: Verily Life Sciences LLCInventors: Dhruv Lamba, Sam Kavusi
-
Patent number: 11150469Abstract: In one implementation, a method includes emitting light with modulating intensity from a plurality of light sources towards an eye of a user. The method includes receiving light intensity data indicative of an intensity of the plurality of glints reflected by the eye of the user in the form of a plurality of glints and determining an eye tracking characteristic of the user based on the light intensity data. In one implementation, a method includes generating, using an event camera comprising a plurality of light sensors at a plurality of respective locations, a plurality of event messages, each of the plurality of event messages being generated in response to a particular light sensor detecting a change in intensity of light and indicating a particular location of the particular light sensor. The method includes determining an eye tracking characteristic of a user based on the plurality of event messages.Type: GrantFiled: September 27, 2018Date of Patent: October 19, 2021Inventors: Branko Petljanski, Raffi A. Bedikian, Daniel Kurz, Thomas Gebauer, Li Jia
-
Patent number: 11147489Abstract: Various embodiments provide systems and methods for identifying impairment using measurement devices.Type: GrantFiled: March 17, 2020Date of Patent: October 19, 2021Assignee: BI IncorporatedInventors: Duke Hanson, Jr., Dustin Pettit, Joseph P. Newell
-
Patent number: 11147446Abstract: An information processing apparatus including an acquisition unit configured to acquire a first three-dimensional optical coherence tomography (OCT) image of a target eye, and a display control unit configured to display, on a display unit, the first three-dimensional OCT image and an interface configured to receive an instruction for acquiring a second three-dimensional OCT image of the target eye, which is an image captured with a fixation target position the same as a fixation target position used in capturing the first three-dimensional OCT image and is to be combined with the first three-dimensional OCT image.Type: GrantFiled: August 31, 2018Date of Patent: October 19, 2021Assignee: Canon Kabushiki KaishaInventor: Hiroshi Imamura
-
Patent number: 11138305Abstract: Users can be authenticated based on pupil dilation response to a challenge prompt. In response to an authentication request, a registered challenge prompt and an expected pupil dilation response can be retrieved. The challenge prompt can include one or more images or a video designed to cause a pupil dilation response in a user. The challenge prompt is displayed to the user and the user's pupil dilation response is captured. The user's pupil dilation response is compared to the expected pupil dilation response. The user is authenticated based on the pupil dilation response and the expected pupil dilation response being substantially similar.Type: GrantFiled: May 28, 2020Date of Patent: October 5, 2021Assignee: WELLS FARGO BANK, N.A.Inventors: Noah L. Hughes, John Ervin Eisenhauer
-
Patent number: 11131539Abstract: A system and method for acquiring imaging data of an object. The system includes a beam splitter for directing a derivative sample beam towards the object and a derivative reference beam towards a reflective element; a detector for detecting at least one of the returned reference beam and the returned sample beam; a mode switching module for selecting an operating mode between an optical coherence tomography (OCT) mode and a hyperspectral imaging (HSI) mode; and a computing module for receiving the detection from the detector and the mode from the mode switching module, wherein in the OCT mode, the computing device generates OCT imaging data by determining an interference pattern produced by a superposition of the returned reference beam and the returned sample beam, and wherein in the HSI mode, the computing module generating hyperspectral imaging data by determining hyperspectral information of the returned sample beam.Type: GrantFiled: June 12, 2018Date of Patent: September 28, 2021Assignee: SIGHTLINE INNOVATION INC.Inventors: Wallace Trenholm, Lorenzo Pons
-
Patent number: 11129529Abstract: An ophthalmologic apparatus includes a refractometry optical system, an OCT optical system, a fixation projection system, and a controller. The refractometry optical system is configured to project light onto a subject's eye and to detect returning light from the subject's eye. The OCT optical system is configured to split light from an OCT light source into measurement light and reference light, to project the measurement light onto the subject's eye, and to detect interference light between returning light of the measurement light from the subject's eye and the reference light. The fixation projection system is configured to simultaneously project a first fixation target and a second fixation target onto the subject's eye, a visual angle of the second fixation target being narrower than a visual angle of the first fixation target. The controller is configured to control the refractometry optical system and the OCT optical system to simultaneously perform a refractometry and an OCT measurement.Type: GrantFiled: June 6, 2019Date of Patent: September 28, 2021Assignee: TOPCON CORPORATIONInventor: Yoko Tatara
-
Patent number: 11116394Abstract: Apparatus and methods are described for performing tear film structure measurement on a tear film of an eye of a subject. A broadband light source (100) is configured to generate broadband light. A spectrometer (250) is configured to measure a spectrum of light of the broadband light that is reflected from at least one spot on the tear film, the spot having a diameter of between 100 microns and 240 microns. A computer processor (28) is coupled to the spectrometer and configured to determine a characteristic of the tear film based upon the spectrum of light measured by the spectrometer. Other applications are also described.Type: GrantFiled: August 2, 2017Date of Patent: September 14, 2021Assignee: AdOM, ADVANCED OPTICAL TECHNOLOGIES LTD.Inventors: Yoel Arieli, Yoel Cohen, Shlomi Epstein, Dror Arbel, Ra'anan Gefen
-
Patent number: 11118894Abstract: In some embodiments, systems, methods, and media for multiple reference arm spectral domain optical coherence tomography are provided which, in some embodiments, includes: a sample arm coupled to a light source; a first reference arm having a first path length; a second reference arm having a longer second path length; a first optical coupler that combines light from the sample arm and the first reference arm; a second coupler that combines light from the sample arm and the second reference arm; and an optical switch comprising: a first input port coupled to the first optical coupler; a second input coupled to the second coupler via an optical waveguide that induces a delay at least equal to an acquisition time of an image sensor; and an output coupled to the image sensor.Type: GrantFiled: October 12, 2018Date of Patent: September 14, 2021Assignee: THE GENERAL HOSPITAL CORPORATIONInventors: Guillermo J. Tearney, Yogesh Verma, David Odeke Otuya, Romain Luu
-
Patent number: 11107214Abstract: A method and device for evaluating the dynamics of a tear fluid layer to objectively and accurately evaluate breakdown of the tear fluid layer, which is a core mechanism of dry eye, are provided. The method includes a step of acquiring color information of each pixel in a predetermined region of a tear fluid layer interference fringe image, which is a moving image or a plurality of static images, a step of calculating a numerical value indicating the diversity of color from the acquired color information, a step of calculating the average value of the color information, and a step of calculating a coefficient of variation on the basis of the calculated numerical value indicating the diversity of color and the calculated average value of the color information. The coefficient of variation is used as an index for evaluating the dynamics of the tear fluid layer.Type: GrantFiled: April 27, 2018Date of Patent: August 31, 2021Assignees: KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION, KOWA COMPANY, LTD.Inventors: Norihiko Yokoi, Katsumi Yabusaki
-
Patent number: 11108977Abstract: An eye is illuminated with a first non-visible light wavelength and a second non-visible light wavelength. A first ocular image is captured from first reflected light having the first non-visible light wavelength and a second ocular image is captured from second reflected light having the second non-visible light wavelength.Type: GrantFiled: February 20, 2020Date of Patent: August 31, 2021Assignee: Facebook Technologies, LLCInventors: Robin Sharma, Andrew John Ouderkirk, Qi Zhang, Christopher Yuan-Ting Liao, Karol Constantine Hatzilias
-
Patent number: 11096826Abstract: An ophthalmological apparatus comprises a laser source for producing a pulsed laser beam, a scanner system for deflecting the pulsed laser beam at a treatment speed in the eye tissue along a scanning treatment line, a first scanning apparatus connected upstream of the scanner system for deflecting the pulsed laser beam and for producing a first scanning movement component superposed on the scanning treatment line in a first scanning direction at a first scanning speed that is higher as compared to the treatment speed, and a second scanning apparatus connected upstream of the scanner system for deflecting the pulsed laser beam and for producing a second scanning movement component, which is superposed on the first scanning movement component in a second scanning direction, which is at an angle to the first scanning direction, at a second scanning speed that is higher as compared to the first scanning speed.Type: GrantFiled: December 19, 2018Date of Patent: August 24, 2021Assignee: Ziemer Ophthalmic Systems AGInventor: Christian Rathjen
-
Patent number: 11079491Abstract: Systems and methods are provided for provided for determining the presence of an object within a region of interest. A broadband laser is projected at a selected location in the region of interest. Reflected light from the selected location in the region of interest is received at a receiver. The received light is dispersed by wavelength across a first axis at a dispersive element. The received light is dispersed by return angle across a second axis at a defocuser. The received light is imaged to provide an image, and a metric representing a correlation between the wavelength and the return angle is measured in the image to determine the presence of the object.Type: GrantFiled: August 13, 2018Date of Patent: August 3, 2021Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventor: Alan Heins
-
Patent number: 11080850Abstract: Disclosed herein are a glaucoma diagnosis method using a fundus image and an apparatus for the same. The glaucoma diagnosis method includes performing data amplification of generating multiple transformed images for an original fundus image based on a preprocessed image of the original fundus image, allowing multiple individual learning models of different types to be learned based on the multiple transformed images and generating a glaucoma determination model based on respective outputs of the learned multiple individual learning models, and diagnosing a class of glaucoma for the original fundus image based on the glaucoma determination model.Type: GrantFiled: January 11, 2019Date of Patent: August 3, 2021Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Konyang University Industry-Academic Cooperation FoundationInventors: Hyeon-Sung Cho, Jae-Hoon Jeong, Jong-Yeup Kim, Ji-Sang Park
-
Patent number: 11064879Abstract: A method for holoscopic, optical coherence tomography for an object, wherein the method includes providing source radiation and splitting the source radiation into illumination radiation and reference radiation, illuminating an illumination field on the object with illumination radiation, said illumination field having an areal extent transverse to the direction of incidence, collecting illumination radiation scattered back from the object as measurement radiation, separating the measurement radiation collected from the object from the illumination radiation, and overlaying the measurement radiation with reference radiation and detecting an interference signal of the overlaid radiations with at least one areal detector with a two-dimensional extent, wherein the object in the illumination field is simultaneously illuminated by more than one spatial radiation mode, wherein the radiation modes of the illumination in the illumination field are spatially and temporally coherent with one another but have a fixed phType: GrantFiled: June 13, 2019Date of Patent: July 20, 2021Assignee: Carl Zeiss Meditec AGInventor: Daniel Bublitz
-
Patent number: 11058298Abstract: Disclosed is a polarization fundus camera including: an illumination unit emitting light; a diffusion lens; an illumination lens irradiating the light introduced from the diffusion lens; a mirror reflecting light introduced from the illumination lens; a polarization beam splitter; an objective lens enlarging an image of a fundus formed by the light introduced from the polarization beam splitter; a short-range eyepiece lens reducing an image of the fundus enlarged by the objective lens; a linear polarization filter; a narrowband optical filter; and an imaging device.Type: GrantFiled: July 6, 2018Date of Patent: July 13, 2021Assignee: AIINSIGHT INC.Inventors: Han Jo Kwon, Keun Heung Park
-
Patent number: 11058295Abstract: An ophthalmic measurement device and measurement system include a projection unit projecting an image on tear fluid accumulated at an edge of an eyelid and a surface of a cornea and conjunctiva; an imager takes a picture of the tear fluid accumulated at an edge of an eyelid and the surface of a cornea and conjunctiva; and a calculator determines a physical quantity of the tear fluid accumulated at an edge of an eyelid. The calculator acquires a physical quantity of a first reflection of the image projected on the tear fluid accumulated at an edge of an eyelid, and calculates a curvature radius of the surface of the tear fluid, from a distance between the projection unit and the surface of the tear fluid obtained by distance measurement, a physical quantity of the image, and the physical quantity of the first reflection.Type: GrantFiled: August 2, 2018Date of Patent: July 13, 2021Assignee: ELRISE CORPORATIONInventors: Yoshiro Okazaki, Mamoru Iwabuchi, Toshiyuki Ookubo, Tatsuki Takenaga, Taku Miyake, Norihiko Yokoi
-
Patent number: 11058293Abstract: An image processing apparatus includes an identification unit configured to identify periodicity of a fundus image obtained by capturing an image of a fundus of an eye, and an information acquisition unit configured to acquire information indicating an imaging state of photoreceptor cells in the fundus image based on the periodicity.Type: GrantFiled: February 27, 2019Date of Patent: July 13, 2021Assignee: Canon Kabushiki KaishaInventors: Keiko Yonezawa, Kazuhide Miyata
-
Patent number: 11062444Abstract: The invention relates to an artificial intelligence cataract analysis system, including a pattern recognition module for recognizing a photo mode of an input eye image, wherein the photo mode is divided according to the slit width of the illuminating slit during photographing of the eye image and/or whether a mydriatic treatment is carried out; a preliminary analysis module used for selecting a corresponding deep learning model for eye different photo modes, analyzing the characteristics of lens in the eye image by using a deep learning model, and further performing classification in combination with cause and severity degree of a disease. The invention can perform cataract intelligent analysis on eye images with different photo modes by using deep learning models, so that the analysis accuracy is improved.Type: GrantFiled: August 8, 2019Date of Patent: July 13, 2021Assignee: ZHONGSHAN OPHTHALMIC CENTER OF SUN YAT-SEN UNIVERSITYInventors: Haotian Lin, Xiaohang Wu, Weiyi Lai
-
Patent number: 11058296Abstract: A storage device of an ophthalmologic image display device of an embodiment stores a three dimensional data set acquired by scanning a subject's eye using OCT. An image processor forms, based on the three dimensional data set, a B-mode image, front images, and composite front image obtained from the front images. A display controller displays the B-mode image, front images and composite front image in a predetermined layout. The display controller displays distinguishment color information for distinguishment between the front images by colors and slice area information that indicates a partial region of the B-mode image corresponding to a slice area of the three dimensional data set represented by each front image in a color according to the distinguishment color information, and displays a composite front image based on the front images, each of which is expressed by a color according to the distinguishment color information.Type: GrantFiled: October 25, 2016Date of Patent: July 13, 2021Assignee: TOPCON CORPORATIONInventors: Taiki Aimi, Masahiro Akiba, Atsushi Kubota
-
Patent number: RE49023Abstract: A fundus observation apparatus that is capable of assisting an examiner in judging the presence or absence of abnormality in an examinee's eye based on a fundus tomographic image. The fundus observation apparatus includes an optical coherence tomography device that has an optical scanner for setting an image pickup position on a fundus of an examinee's eye, and is arranged to obtain a tomographic image of the fundus, and an information display unit that is arranged to display on a monitor the tomographic image obtained by the optical coherence tomography device and assisting information for assisting an examiner in performing judgment on the tomographic image, and the information display unit is arranged to change the assisting information based on image pickup information on the tomographic image.Type: GrantFiled: April 8, 2015Date of Patent: April 12, 2022Assignee: NIDEK CO., LTD.Inventors: Naoki Isogai, Toshio Murata