Including Eye Photography Patents (Class 351/206)
  • Patent number: 10076243
    Abstract: An ophthalmic imaging device for capturing a tomographic image of an eye, includes: an OCT optical system detecting interference of reference light and measurement light; a measurement optical system including an optical scanner and an objective optical system, the optical scanner being configured to deflect the measurement light to perform scanning with the measurement light; a driver configured to displace a relative position of the optical scanner with respect to the objective optical system in an optical axis direction; and a controller configured to control the driver to adjust a turning position of the measurement light in the optical axis direction. The controller changes the turning position between a first position corresponding to a first depth band of the eye and a second position corresponding to a second depth band of the eye which is different from the first depth band.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: September 18, 2018
    Assignee: NIDEK CO., LTD.
    Inventors: Keiji Murata, Masaaki Hanebuchi, Masakazu Endo
  • Patent number: 10078782
    Abstract: A method for identifying and/or authenticating an individual by a system including a storage device storing at least one binary code of a reference iris and a binary code of an associated reference mask: acquisition of an image of an eye of the individual, segmentation of the acquired image to isolate a region containing the texture of the iris and determine an associated mask, division of the region and the mask into N2 concentric rings, normalization of the region, determination of a binary iris code IC and a binary code of mask IM matching at least one ring of the iris with a ring of the reference iris to minimize a matching distance between the acquired image and the reference image, computation of the minimized matching distance, identification and/or authentication of the individual if the minimized matching distance is less than a predetermined threshold.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: September 18, 2018
    Assignee: MORPHO
    Inventors: Emine Krichen, Pierre Gacon, Stephane Gentric
  • Patent number: 10078226
    Abstract: An ophthalmoscope includes an illumination assembly having a light source disposed along an illumination axis and an imaging assembly configured for delivering an image to an imaging device. Each of the imaging and illumination assemblies are disposed in an instrument housing, the ophthalmoscope being configured for attachment to an electronic imaging device and in which the imaging assembly produces a field of view of about 40 degrees to permit more comprehensive eye examinations to be reliably conducted. In at least one version, a portable electronic device, such as a smart device, can be coupled to the instrument or configured to wirelessly receive images therefrom.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: September 18, 2018
    Assignee: Welch Allyn, Inc.
    Inventors: Ervin Goldfain, Raymond A. Lia
  • Patent number: 10078783
    Abstract: A method and system for authenticating a user. A first digital representation of an iris of an eye of at least one authentic user is obtained. A second digital representation of at least one authentic overlay pattern is obtained. A third digital representation of a captured image of an iris of a user to be authenticated is obtained, where the iris of the user has been overlaid with a contact lens including a further overlay pattern thereby creating an image composed of the iris of the user and the further overlay pattern. An expected digital representation of an iris of at least one authentic user is generated, by combining the first and second digital representations. Authenticating the user is attempted by comparing the third digital representation with the expected digital representation. An authentication signal indicative of whether authentication of the user has been successful is generated based on the comparing.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: September 18, 2018
    Assignee: International Business Machines Corporation
    Inventors: Hamish C. Hunt, Ashley Shea
  • Patent number: 10070780
    Abstract: An ophthalmologic photographing apparatus includes: a photographing optical system that includes a scanning unit for scanning an examinee's eye with measurement light to obtain a tomographic image of the examinee's eye; an observing optical system that includes a light-receiving device for receiving reflected light from the examinee's eye to obtain a moving image of a front image of the examinee's eye based on a light-receiving signal from the light-receiving device; a display controller for displaying the front image acquired by the observing optical system in a still state on a monitor as well as enabling setting of a capturing position of the tomographic image, the setting using the front image; and a drive controller for controlling the scanning unit to acquire the tomographic image in accordance with the capturing position.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: September 11, 2018
    Assignee: NIDEK CO., LTD.
    Inventors: Yuji Murase, Yukihiro Higuchi, Norimasa Satake
  • Patent number: 10070782
    Abstract: The present disclosure provides an adaptive optical retina imaging apparatus and method. The adaptive optical retina imaging apparatus comprises an optical processing unit, an adaptive optical unit, a two-dimensional scanning unit and a primary aberration correcting unit, in which an imaging unit included in the optical processing unit is imaging based on the signal after high order aberration compensation and low order aberration compensation.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: September 11, 2018
    Assignee: The Institute of Optics and Electronics, The Chinese Academy of Sciences
    Inventors: Yi He, Guohua Shi, Jinsheng Yang, Ling Wei, Xiqi Li, Zhibin Wang, Yudong Zhang
  • Patent number: 10070785
    Abstract: An eye examination apparatus comprises an illuminator adapted to project a light beam on an optical illumination path along a first optical axis to illuminate the retina of an eye, said illuminator comprising a light source and a projection diaphragm adapted to shape the light beam, during the operation of said examination apparatus said projection diaphragm being optically conjugated with the retina. Acquisition means receive light reflected by the retina and acquire images of the retina. Scanning means move the light beam projected on the surface of the retina along a scanning direction. Separation means of the beams separate the light projected by said illuminator from the light reflected by the retina. The projection diaphragm comprises a projection opening having an elongated shape and variable width, said projection opening comprising a portion having a width larger than the width of said projection opening at the first optical axis.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: September 11, 2018
    Assignee: Centervue S.p.A.
    Inventors: Andrei Plaian, Irene Mogentale
  • Patent number: 10064549
    Abstract: Binocular en face OCT imaging during ophthalmic surgery may be performed with an OCT scanning controller that interfaces to an OCT scanner used with a surgical microscope. The OCT scanner may generate left and right sample beams, and receive left and right measurement beams, respectively, to generate left and right scan data. The OCT scanning controller may process the left and right scan data to generate left and right en face images for respective viewing from binoculars in the surgical microscope to obtain an intraoperative stereoscopic en face view of interior portions of the eye.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: September 4, 2018
    Assignee: Novartis AG
    Inventor: Steven T. Charles
  • Patent number: 10067346
    Abstract: A display device includes an optical sensor configured to image a user eye, an image source configured to provide image light, a holographic film including a plurality of holograms, and a controller. Each hologram is recorded with a same reference beam but recorded differently so as to differently diffract image light received from the light source. The controller is configured to determine, via the optical sensor, a position of the user eye, and adjust, based on the determined position of the user eye, a state of the holographic film such that a particular hologram of the plurality of holograms diffracts image light to the position of the user eye.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: September 4, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventor: Adrian Travis
  • Patent number: 10058242
    Abstract: An embodiment provides a new technique of ophthalmologic diagnostic imaging. An ophthalmologic imaging apparatus of an embodiment includes: an acquiring part configured to acquire three-dimensional image data of an eye by using optical coherence tomography; a designating part configured for designating partial image data that is a part of the three-dimensional image data corresponding to a specific site of the eye; a deforming part configured to deform the three-dimensional image data such that the partial image data is deformed into a predetermined shape to create new three-dimensional image data; a forming part configured to form cross-sectional image data based on the new three-dimensional image data; and a display controller configured to display an image based on the cross-sectional image data on a display means.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: August 28, 2018
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Fumi Gomi, Masahiro Akiba, Tsutomu Kikawa
  • Patent number: 10058241
    Abstract: Systems and methods for performing a visual field test of a patient are described. One example method for performing the visual field test of the patient using a visual field testing device having a refractive correction element, a patient support, and a motor operably attached to one of the refractive correction element or the patient support includes positioning the patient's head relative to the device using the patient support. An image showing the position of the eye relative to the refractive correction element is collected. The relative displacement of the eye with respect to the refractive correction element is determined based on the collected image. The motor is actuated in a manner to reduce the determined displacement. A series of test stimuli is displayed to the patient's eye and responses to the test stimuli are received from the patient. The responses are analyzed to make an assessment of the patient's visual field.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: August 28, 2018
    Assignee: CARL ZEISS MEDITEC, INC.
    Inventors: Vincent Michael Patella, Jeffrey Donald Stevens
  • Patent number: 10061109
    Abstract: A microscope system includes: a microscope main body including an objective lens arranged in such a manner that an optical axis of the objective lens is aligned with an observation light path of the microscope main body; and an automatic focus unit including a light source, a dichroic mirror arranged so as to be inserted on or to be deviated from the observation light path and configured to reflect light emitted from the light source in a direction of the optical axis of the objective lens, and a dichroic mirror moving mechanism. The microscope main body further includes a controller having a dichroic mirror movement control unit configured to control the dichroic mirror moving mechanism to move the dichroic mirror to an arrangement position of the dichroic mirror on the observation light path, the arrangement position being correlated to the objective lens in advance.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: August 28, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Shinsuke Kaneki
  • Patent number: 10052018
    Abstract: A method, a controller, and a non-transitory medium for controlling an optical-image pickup apparatus. Receiving quality data representative of quality of wavefront data. Comparing the quality data to a threshold. Performing normal adaptive optics feedback if the wavefront data is of sufficient quality. Performing an initial adjustment if the wavefront data is not of sufficient quality. The initial adjustment comprising sending control information to modify the optical path in which light is radiated onto a subject. After the initial adjustment, receiving new quality data that is based on new wavefront data after the optical path has been modified. Performing the normal adaptive optics feedback if the quality information indicates that the wavefront data is of sufficient quality. Re-performing the initial adjustment if the new quality information indicates that the wavefront data is not of sufficient quality.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: August 21, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koji Nozato
  • Patent number: 10048479
    Abstract: Provided is a laser scanning microscope including a scanning unit that scans laser light emitted from a light source two-dimensionally across a specimen, a light-detecting unit that detects light coming from the specimen, an information-acquiring unit that acquires information about an observation mode, and a control unit that controls the scanning unit based on the information acquired by the information-acquiring unit. The scanning unit includes a galvanometer scanner and a resonant scanner that are alternately operable. The control unit controls the scanning unit to deactivate the resonant scanner if the information acquired by the information-acquiring unit indicates an observation mode in which the galvanometer scanner is used alone and to maintain the resonant scanner in an active state if the information acquired by the information-acquiring unit indicates an observation mode in which the galvanometer scanner and the resonant scanner are alternately used.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: August 14, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Katsuyuki Hashimoto
  • Patent number: 10045691
    Abstract: 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.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: August 14, 2018
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Hiroaki Okada, Taisaku Kogawa, Takashi Fujimura, Kohta Fujii
  • Patent number: 10048057
    Abstract: An optical coherence tomography (OCT) system including a source of broadband optical radiation and a beamsplitter coupled to the source is provided. The beamsplitter divides the source radiation into a reference path and a sample path. The reference path includes an optical switch to switch the reference path between a first path having a first reference reflection at a first reference optical path length and a second path having a second reference reflection at a second reference optical path length. The system further includes a beam combiner that mixes source radiation reflected from a subject in the sample path with source radiation returned from the first reference reflection and the second reference reflection. A detection system detects a first wavelength dependent interferogram during the first time interval and a second wavelength dependent interferogram during the second time interval. A processor preconditions the first and second wavelength dependent interferograms.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 14, 2018
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Al-Hafeez Z. Dhalla, Nestor O. Farmiga, Mehran Ghofrani, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Patent number: 10041833
    Abstract: Provided is a system and method for active multispectral imaging having a transmitter that uses narrowband optical radiation to dynamically illuminate an object with modulated structured light in multiple spectral bands, and a receiver that includes an independent panchromatic imager. The transmitter and receiver can be operated in a bistatic decoupled configuration to enable passive multispectral synthesis, illumination-invariant sensing, optical communications, and the ability for the transmitter to emit a sequence of spectral bands in an order that is unknown to the receiver, and the receiver is able to passively decode the spectral identity from a band identifier embedded in the modulated structured light. The receiver passively decodes embedded high-bandwidth simplex communications while reconstructing calibrated multispectral images at video frame rates.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: August 7, 2018
    Assignee: The United States of America as Represented by the Adminstrator of the NASA
    Inventor: Ved Chirayath
  • Patent number: 10039448
    Abstract: An ophthalmic apparatus capable of suppressing ghost, and securing a necessary amount of working distance even when an eye to be inspected has a diopter on a myopia side, includes: a large area image acquisition unit acquiring a large area image of a fundus of the eye to be inspected at a low resolution based on return light of first measuring light from the fundus; a small area image acquisition unit acquiring a small area image of the fundus at a high resolution based on return light of second measuring light from the fundus; and a dichroic prism combining the first measuring light and the second measuring light, and dividing the return light, in which the large area image acquisition unit includes an optical member having a positive optical power, which is arranged at a position opposite to the eye to be inspected with respect to the dichroic prism.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: August 7, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Sudo
  • Patent number: 10036902
    Abstract: A method of determining at least one behavioral parameter of a wearer for designing an ophthalmic eyeglass lens includes: a) acquiring a first data set from a first representation of the head of the wearer in three dimensions; b) determining the relative position in space of at least three particular points of the head based on the data set; c) acquiring a second data set from a second representation of the head in a natural posture, including at least one image of each of the three particular points; d) identifying the image of each of the particular points from step b) on the representation of step c); e) deducing information relating to the position and/or to the orientation of the head of the wearer during the determination of the second representation from this identification; and f) determining the behavioral parameter of the wearer based on the information from step e).
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: July 31, 2018
    Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventors: Konogan Baranton, Guilhem Escalier, Sebastien Gayat
  • Patent number: 10031351
    Abstract: Systems and methods for creating fully custom products from scratch without exclusive use of off-the-shelf or pre-specified components. A system for creating custom products includes an image capture device for capturing image data and/or measurement data of a user. A computer is communicatively coupled with the image capture device and configured to construct an anatomic model of the user based on the captured image data and/or measurement data. The computer provides a configurable product model and enables preview and automatic or user-guided customization of the product model. A display is communicatively coupled with the computer and displays the custom product model superimposed on the anatomic model or image data of the user. The computer is further configured to provide the customized product model to a manufacturer for manufacturing eyewear for the user in accordance with the customized product model.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: July 24, 2018
    Assignee: Bespoke, Inc.
    Inventors: Timothy A. Fonte, Eric J. Varady
  • Patent number: 10028655
    Abstract: An optical system of an ophthalmologic imaging apparatus of embodiment splits light from a first light source into measurement light and reference light and detects interference light of returned light of measurement light from an eye and reference light. An image forming part forms an image based on detection result from the optical system. The optical unit includes a lens and joining member. The lens is locatable in an optical path of measurement light and used for changing a focus position of measurement light from a first site of the eye to second site. The joining member joins an optical path from a second light source to the optical path of measurement light. The optical unit converges light from the second light source having been guided into the optical path of measurement light by the joining member on an eye fundus via the lens.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: July 24, 2018
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Kouta Fujii, Kenji Miyashita
  • Patent number: 10024649
    Abstract: An apparatus for optical coherence tomography (OCT) comprises a light source, a first arm, a second arm, and a processing unit. The first arm has a first dispersive optical assembly that induces a first amount of dispersion into light from the light source and traversing the first arm, where the first arm is one of a sample arm and a reference arm of an interferometer. The second arm has a second dispersive optical assembly that induces a second amount of dispersion into light from the light source and traversing the second arm, where the second arm is the other of the sample arm and reference arm. The second amount of dispersion is larger than the first amount of dispersion. The processing unit processes an interferometry signal to perform OCT, where the interferometry signal represents a superposition of the light from the first arm and the light from the second arm.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: July 17, 2018
    Assignee: Wavelight GmbH
    Inventors: Ole Massow, Johannes Loerner
  • Patent number: 10016127
    Abstract: The present invention relates to an eye testing and image capture device for testing and examination of an eye comprising an image display device to display an image for viewing by an eye to be tested; an image capture device to capture an image of the eye; a beam splitter positioned to split light between the image capture device and the image display device; and a lighting array for illuminating the eye wherein the lighting array comprises a first array positioned at a first angle to the eye and a second array positioned at a second angle to the eye and the first array and second array comprise two or more different light types. The present invention also relates to a method of obtaining eye test data and one or more image of an eye as well as to a system and method of screening a patient using the device and method.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: July 10, 2018
    Assignee: INGENEUS PTY LTD
    Inventors: Richard Gordon Walmsley, David James Lockwood, Michael Andrew Coote
  • Patent number: 10016126
    Abstract: A macular health measurement and storage system comprises a plurality of macular-pigment measurement machine for measuring macular pigment density in humans, a plurality of computers each of which is associated with a corresponding one the macular-pigment measuring machines, and a central host. The plurality of macular-pigment measurement machines include a device for receiving macular pigment data from a patient, at least one data transfer port, and at least one processor that enables the transfer of the macular pigment data from the transfer port. The plurality of computers include a first port coupled to the data transfer port of the corresponding macular-pigment measurement machine for receiving the macular pigment data. Each of the computers includes a second port for transferring patient data. The central host is coupled to the second ports on each of the plurality of computers. The central host includes a storage device for storing the patient data.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: July 10, 2018
    Assignee: ZeaVision LLC
    Inventors: Dennis L. Gierhart, Terry B. Hatfield
  • Patent number: 10013749
    Abstract: Resolution enhancement of OCT images during ophthalmic surgery may be performed with an OCT scanning controller that interfaces to an OCT scanner used with a surgical microscope. Real-time OCT images may be acquired by the OCT scanner, while previously acquired high resolution OCT images are accessed by the OCT scanning controller. The high resolution OCT images may be morphed based on the real-time OCT images to match a deformation of the eye. The morphed high resolution OCT images may be displayed during surgery.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: July 3, 2018
    Assignee: NOVARTIS AG
    Inventor: Steven T. Charles
  • Patent number: 10004395
    Abstract: The technology described in this document can be embodied in systems and computer-implemented methods for determining a score representing an amount of staining of the cornea. The methods include obtaining a digital image of the cornea stained with a tracer material, receiving a selection of a portion of the image, and processing, by a processing device, the selection to exclude areas with one or more artifacts to define an evaluation area. For each of a plurality of pixels within the evaluation area, a plurality of Cartesian color components are determined and a hue value in a polar coordinate based color space is calculated from the components. An amount of staining of the cornea is then determined as a function of the hue value. The methods also include assigning a score to the evaluation area based on the amount of staining calculated for the plurality of pixels.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: June 26, 2018
    Assignee: Massachusetts Eye and Ear Infirmary
    Inventors: Reza Dana, Francisco L. Amparo Pulido, Haobing Wang
  • Patent number: 10004396
    Abstract: 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: Grant
    Filed: May 30, 2017
    Date of Patent: June 26, 2018
    Assignee: TearScience, Inc.
    Inventors: Donald R. Korb, William L. Weber, Randal B. Chinnock, Benjamin T. Gravely, Stephen M. Grenon
  • Patent number: 9999346
    Abstract: Background reduction apparatuses and methods of Ocular Surface Interferometry (OSI) employing polarization are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT) and can be used to evaluate and potentially diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the 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 at least one image. The at least one image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT).
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: June 19, 2018
    Assignee: TearScience, Inc.
    Inventors: Donald R. Korb, William L. Weber, Randal B. Chinnock, Benjamin T. Gravely, Stephen M. Grenon
  • Patent number: 9993151
    Abstract: Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including the lipid layer thickness (LLT) and/or the aqueous layer thickness (ALT). The TFLT can be used to diagnose dry eye syndrome (DES). Certain embodiments also include ocular topography devices, systems and methods for deducing corneal shape by capturing an image of a target reflecting from the surface of the cornea. The image of the target contains topography information that is reviewable by a clinician to diagnose the health of the patient's eye by detecting corneal aberrations and/or abnormalities in corneal shape. Certain embodiments also include a combination of the OSI and ocular topography devices, systems and methods to provide imaging that can be used to yield a combined diagnosis of the patient's tear film and corneal shape.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: June 12, 2018
    Assignee: TearScience, Inc.
    Inventors: Stephen M. Grenon, Donald R. Korb
  • Patent number: 9993149
    Abstract: Certain embodiments pertain to Fourier ptychographic retinal imaging methods and systems that focus on a retina of an eye to acquire a sequence of raw retinal images, construct a full-resolution, complex retinal image from the sequence of raw retinal image and correct the aberration in the full-resolution, complex retinal image to generate a substantially aberration-free retinal image.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: June 12, 2018
    Assignee: California Institute of Technology
    Inventors: Jaebum Chung, Roarke W. Horstmeyer, Changhuei Yang
  • Patent number: 9993153
    Abstract: An optical coherence tomography (OCT) system using partial mirrors is generally described. In an example, the OCT system includes a swept light source. The system further includes an interferometer into which light from the light source is directed and a detector configured to produce an imaging sample signal based on light received from the interferometer. The system also includes a partial mirror disposed over an aperture, wherein the partial mirror is configured to transmit light within a first wavelength range and reflect light within a second wavelength range.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: June 12, 2018
    Assignee: SANTEC CORPORATION
    Inventor: Changho Chong
  • Patent number: 9986909
    Abstract: An image processing apparatus includes an identification unit configured to identify a retinal blood vessel based on a retinal image, a measurement unit configured to measure blood flow information for the blood vessel based on the retinal image, and a display control unit configured to display the measured blood flow information by at least one selected from a depth of the identified blood vessel, a size of the identified blood vessel, and a combination of both.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: June 5, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroshi Imamura
  • Patent number: 9990717
    Abstract: Described is a hemoglobin and hematocrit analyzer, and an analyzing method thereof. The method includes: scanning and taking an image signal of the palpebral conjunctiva of a subject by a scanning unit; receiving the image signal by an analyzing unit connected to the scanning unit; providing a default colorimetric scale by a database connected to the analyzing unit; inputting a clinical test result into the analyzing unit through an input unit connected to the analyzing unit. The image signal is transformed by the analyzing unit to a measured color value. The measured color value is compared with the default colorimetric scale to obtain a test result. The measured color value and the clinical test result are provided as feedback to the database.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: June 5, 2018
    Assignee: Pingtung Christian Hospital
    Inventor: Po-Ping Liu
  • Patent number: 9989351
    Abstract: The tomographic image capturing device of the present invention comprises a display means (18) configured to: split light from a light source (11) into measurement light and reference light and cause the measurement light and the reference light to be incident to an object (E) and a reference object (49), respectively; capture tomographic images of the object (E) on the basis of interference light generated by superposition of the measurement light reflected from the object (E) and the reference light reflected from the reference object (49); and display tomographic pictures of the object generated on the basis of the captured tomographic images. The tomographic image capturing device has a first image capturing mode and a second image capturing mode. The first image capturing mode is a mode in which the measurement light is two-dimensionally scanned by raster scan to be incident to the object (E) and the tomographic images of the object (E) are captured.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: June 5, 2018
    Assignee: KOWA COMPANY, LTD.
    Inventors: Naoki Kobayashi, Toshiaki Nakagawa
  • Patent number: 9983667
    Abstract: A method and an apparatus are provided for display control. In the method, the electronic device acquires an image including one or more observed objects. The electronic device determines whether an observed object is clearly visible for a user according to vision information of the user. When determining that the observed object is not clearly visible for the user, the electronic device displays an enlarged image including at least a portion of the observed object.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: May 29, 2018
    Assignee: Xiaomi Inc.
    Inventors: Mingyong Tang, Huayijun Liu, Tao Chen
  • Patent number: 9974436
    Abstract: The present invention relates to an ophthalmic apparatus and to a treatment site measuring method for the apparatus. The ophthalmic apparatus according to the present invention comprises: a first image unit for capturing the lower region of a retina so as to generate an image of the captured retina; a second image unit for capturing the local region of the retina indicated by a surgical operator so as to generate an image of the captured local region of the retina; and a control unit for mapping the image of the local region of the retina generated by the second image unit to the image of the retina generated by the first image unit based on the image of the retina generated by the first image unit.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: May 22, 2018
    Assignee: LUTRONIC VISION INC
    Inventors: Tae Ho Ha, Ki Chan Kim
  • Patent number: 9968252
    Abstract: An apparatus for diagnosing and/or quantifying the degree of strabismus is disclosed. The apparatus includes a beam that supports at least two targets, a video camera, a light source for generating Purkinje reflexes, and a computer. The patient gazes at the targets while the video camera captures the patient's eyes. The frames of the video are then analyzed as described herein to determine the location of the pupil and the first Purkinje reflex. With this information, strabismus can be diagnosed, as well as the angle of deviation, which is useful for surgically correcting the strabismus. Methods of analyzing the frames are also discussed herein.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: May 15, 2018
    Assignee: University Hospitals of Cleveland
    Inventors: Jeffrey Bloom, Kevin White, Andreas Inmann, Ryan Peters
  • Patent number: 9962074
    Abstract: An ophthalmic imaging device that captures an image of a test eye, the device includes: an OCT optical system configured to acquire an OCT signal by scanning a tissue of the test eye with measurement light, the ophthalmic imaging device configured to execute: receiving a designation of a wide area which is wider than a unit area which is an acquisition unit for acquiring motion contrast data indicating a motion of the tissue; acquiring a plurality of OCT signals for the same position at different timing in each of a plurality of unit areas, the plurality of unit areas being positioned in the designated wide area and being not completely overlapped with each other; and acquiring the motion contrast data of each of the plurality of unit areas by processing the plurality of OCT signals acquired for the same position.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: May 8, 2018
    Assignee: NIDEK CO., LTD.
    Inventors: Norimasa Satake, Ai Takaya
  • Patent number: 9965697
    Abstract: An object that has attracted a viewer's interest is determined using head pose and distance information. In one example a viewer's head is detected at a camera of a computing system. A distance from the head to the camera is determined. A pose of the head is determined as a yaw angle of the head. A location is determined using the distance and the yaw angle, and an object of attention is determined using the location.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: May 8, 2018
    Assignee: INTEL CORPORATION
    Inventor: Yen Hsiang Chew
  • Patent number: 9962073
    Abstract: A tomographic image capturing apparatus includes a fixation lamp configured to guide a line of sight of a subject's eye, and a control unit configured to control a projection position of measuring light according to a predetermined position on a fundus of the subject's eye and a projection position of the fixation lamp.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: May 8, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukio Sakagawa
  • Patent number: 9959635
    Abstract: A state determination device includes a calculator that receives multiple eye region images captured at different timings in a time interval from when a person opening eyes closes the eyes to when the person opens the eyes next and calculates a luminance value relating to multiple pixels included in each of the eye region images and a determiner, wherein the determiner calculates a time interval from a first time point when the luminance value relating to the pixels reaches a predetermined first luminance value for the first time to a second time point when the luminance value relating to the pixels reaches a second luminance value after the first time point; if a time interval from the first time point to the second time point is a first time interval, the determiner determines that the person is in a first state; if the time interval from the first time point to the second time point is a second time interval which is shorter than the first time interval, the determiner determines that the person is in a se
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: May 1, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Wataru Nakai
  • Patent number: 9955865
    Abstract: A method to determine an ophthalmic tissue structure comprises measuring image data for a range of depths corresponding to a target point in an eye with an axial scanner with a probe; determining an image information by an imaging processor from the image data; identifying a tissue pathology corresponding to the target point by the processor from the image information; and signaling a user by a user indicator based on the identified tissue pathology. A corresponding apparatus comprises an axial scanner with a probe to measure image data for a range of depths corresponding to a target point in an eye; a processor to determine an image information from the image data, and to identify a tissue pathology corresponding to the target point from the image information; and a user indicator to signal a user based on the identified tissue pathology.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: May 1, 2018
    Assignee: Novartis AG
    Inventors: Steven T. Charles, Michael James Papac, Michael Yadlowsky
  • Patent number: 9955863
    Abstract: Methods and apparatus are presented for obtaining high-resolution 3-D images of a sample over a range of wavelengths, optionally with polarization-sensitive detection. In preferred embodiments a spectral domain OCT apparatus is used to sample the complex field of light reflected or scattered from a sample, providing full range imaging. In certain embodiments structured illumination is utilized to provide enhanced lateral resolution. In certain embodiments the resolution or depth of field of images is enhanced by digital refocusing or digital correction of aberrations in the sample. Individual sample volumes are imaged using single shot techniques, and larger volumes can be imaged by stitching together images of adjacent volumes.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: May 1, 2018
    Inventors: Steven James Frisken, Trevor Bruce Anderson, Armin Georg Segref, Grant Andrew Frisken
  • Patent number: 9949635
    Abstract: An ophthalmic surgical apparatus includes an observation optical system, an illumination optical system, an interference optical system, and an image forming unit. The observation optical system is configured to observe an eye through an objective lens. The illumination optical system is configured to illuminate the eye through the objective lens. The interference optical system includes a reference optical path and a signal optical path which leads to the eye through the deflecting member located between the objective lens and the eye, and is configured to detect interference light based on light having passed through the signal optical path and returning from the eye and the reference light having passed through the reference optical path. The image forming unit forms an image of the eye based on a detection result obtained by the interference optical system.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: April 24, 2018
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Michiko Nakanishi, Takefumi Hayashi, Hiroshi Akiyama, Masahiro Akiba, Makoto Fujino
  • Patent number: 9952666
    Abstract: Methods and systems to facilitate eye tracking control on mobile devices are provided. An image of a portion of a user is received at an eye tracking device, where the image includes reflections caused by light emitted on the user from one or more light sources located within the eye tracking device. One or more eye features associated with an eye of the user is detected using the reflections. Point of regard information is determined using the one or more eye features, where the point of regard information indicates a location on a display of a computing device coupled to the eye tracking device at which the user was looking when the image of the portion of the user was taken. The point of regard information is sent to an application capable of performing a subsequent operation using the point of regard information.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: April 24, 2018
    Assignee: Facebook, Inc.
    Inventors: Sebastian Sztuk, Martin Henrik Tall, Javier San Agustin Lopez
  • Patent number: 9952664
    Abstract: Aspects of the present invention relate to methods and systems for imaging, recognizing, and tracking of a user's eye that is wearing a HWC. Aspects further relate to the processing of images reflected from the user's eye and controlling displayed content in accordance therewith. Aspects further relate to determining health conditions of the user based on eye imaging technologies.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: April 24, 2018
    Assignee: Osterhout Group, Inc.
    Inventors: John N. Border, John Haddick, Joseph Bietry
  • Patent number: 9949634
    Abstract: Optical coherence tomography (OCT) imaging systems are provided including a source of broadband optical radiation coupled to a sample arm of the OCT imaging system; a beam shaping optical assembly in the sample arm, the beam shaping optical assembly being configured to receive optical radiation from the source as a beam of optical radiation and to shape the spatial profile of the beam of optical radiation; a scan mirror assembly coupled to the beam shaping optical assembly; and objective lens assembly coupled to the beam shaping optical assembly. The beam shaping optical assembly includes a lens assembly configured to change a NA of the OCT system without changing a focus; to change a focus of the OCT system without changing a NA of the system; or to change both the NA and the focus of the OCT system responsive to a control input.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: April 24, 2018
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Andrew Murnan, Nestor O. Farmiga, Robert H. Hart, Christopher Saxer
  • Patent number: 9936869
    Abstract: An ocular fundus camera system and an associated methodology. The system includes (a) an image sensor disposed along a fundus-image reflection path adjacent that path's downstream end, and in optical communication with light carried in this path, (b) an aperture centered on the reflection path's long axis, operatively associated with, and stationary with respect to, the sensor at a location which is upstream from the sensor, and (c), for accomplishing (1) precision fundus-image focusing on the sensor, and additionally (2) autorefraction, optical, light-content shifting structure, operable selectively for producing, within that portion of the reflection path which is disposed downstream from the shifting structure, relative trans-axial displacement solely of any non-collimated light carried in that portion of the main path which is disposed upstream from the shifting structure.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 10, 2018
    Assignee: Brien Holden Vision Institute
    Inventors: Tom N. Cornsweet, Paul R. Peterson
  • Patent number: 9931171
    Abstract: An integral laser imaging and treatment apparatus, and associated systems and methods that allow a physician (e.g., a surgeon) to perform laser surgical procedures on an eye structure or a body surface with an integral laser imaging and treatment apparatus disposed at a first (i.e. local) location from a control system disposed at a second (i.e. remote) location, e.g., a physician's office. In some embodiments, communication between the integral laser imaging and treatment apparatus and control system is achieved via the Internet®. Also, in some embodiments, the laser imaging and treatment apparatus is further configured to provide photodynamic therapy to a patient.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: April 3, 2018
    Inventor: Gholam A. Peyman
  • Patent number: 9931033
    Abstract: A system, method, medium, controller, or ophthalmoscope for imaging a fundus of a subject. Estimating a first illumination center position for an illumination beam relative to a center position of a pupil of the subject. The first illumination center position may be offset from the center position of the pupil. Sending instructions to an ophthalmoscope to shift a center position of the illumination beam to the first illumination center position.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: April 3, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoaki Kawakami, Koji Nozato, Norihiko Utsunomiya