Including Eye Photography Patents (Class 351/206)
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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
  • 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: 9924862
    Abstract: A scanning laser ophthalmoscope (SLO) for imaging the retina of an eye comprises a source (12) of collimated light, a scanning device (14, 16, 1328, 1319), a scan transfer device (20) and a detector (1310). The scan transfer device has a first focus (16) at which an apparent point source is provided and a second focus (24) at which an eye (524, 1324) may be accommodated. The scan transfer device transfers a two-dimensional collimated light scan from the apparent point source into the eye. An optical coherence tomography (OCT) system (900) is combined with the SLO, the OCT system providing OCT reference and sample beams. The OCT sample beam (902) propagates along the same optical path as of the SLO collimated light through the scan transfer device. An aberration compensator (1204, 1316) automatically compensates for systematic aberrations and/or changes in wavefront introduced by scanning elements and the scan transfer device as a function of scan angle.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: March 27, 2018
    Assignee: Optos PLC
    Inventors: William Brown, Michael E. Sullivan, Anthony Corcoran, Derek Swan
  • Patent number: 9928422
    Abstract: A user terminal apparatus and an iris recognition method thereof are provided. The user terminal apparatus includes an imaging unit configured to generate an image of a user, a display configured to display the generated image, and a controller configured to detect a user eye from the generated image, control the display to display a guide image in a position of the generated image in which the detected user eye is located, and perform iris recognition in response to a difference between a size of an iris included in the detected user eye and a size of the guide image being within a preset range.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: March 27, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-jun Son, Jin-woo Yoo, Sung-wook Baek, Hyun-geun Jo, Byeong-hoon Kwak
  • Patent number: 9918633
    Abstract: An apparatus for determining an orientation of anatomical cornea structures includes: a lighting device, configured to direct a first luminous radiation, polarized with an orientable polarization direction, towards a cornea, when the cornea is in an observation seat; a control device, configured to modify an orientation of the polarization direction; an image acquisition device, arranged so as to receive a second luminous radiation, transmitted through the cornea arranged in the observation seat and illuminated by the first luminous radiation; and an acquisition polarizing filter, arranged so as to intercept the second luminous radiation directed towards the image acquisition device.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: March 20, 2018
    Assignee: PHRONEMA S.R.L.
    Inventor: Eugenio Lipari
  • Patent number: 9918632
    Abstract: The present invention reduces a positional displacement of an acquired image attributable to a delay from the issuance of a drive instruction to a scanner to the scanner actually reaching an instructed drive position. An ophthalmologic apparatus has a light scanning unit which scans measuring light on an eye to be examined, an acquisition unit which receives light reflected from the eye to be examined and acquires a light receiving signal, and an instruction unit which instructs the drive position of the light scanning unit. The apparatus further includes a position detection unit which detects the current position of the light scanning unit and a measurement unit which measures the drive time delay from the issuance of an instruction by the instruction until the current position reaches the instructed drive position. The acquisition unit starts acquiring the light receiving signal at timing based on the drive time delay.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: March 20, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuki Shimozato, Wataru Sakagawa, Toshifumi Masaki, Yukio Sakagawa
  • Patent number: 9922250
    Abstract: Methods and apparatuses are provided for capturing an image in a portable terminal. An image is received at the portable terminal. An eye region is detected in the image. An eye center of the eye region is determined. It is determined whether a reflection region is detected in the eye region. When the reflection region is detected, a shape of the reflection region is determined, and guide information for preventing the reflection region is output based on the shape of the reflection region.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: March 20, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Byung-jun Son, Joo-young Son, Tae-hwa Hong
  • Patent number: 9918630
    Abstract: A method for detecting glaucoma in a subject based on spatial frequency analysis of the inner limiting membrane (ILM) as obtained from optical coherence tomography (OCT) image data is disclosed. Based on the spatial frequency content of the analyzed ILM profile, a quantity called the Retinal surface contour variability (RSCV) is calculated and the presence or absence of a glaucoma condition is determined based on the RSCV magnitude.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: March 20, 2018
    Inventors: Ou Tan, David Huang
  • Patent number: 9913581
    Abstract: To accurately position a past photography position and a photography position this time in follow up using polarization OCT images. In follow up, multiple polarization-sensitive tomographic images are positioned based on multiple polarization planar images of an object, corresponding to multiple polarization-sensitive tomographic images obtained by photographing the object at another time.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: March 13, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Iwase, Makoto Sato, Tomoyuki Makihira
  • Patent number: 9895057
    Abstract: Systems and methods for performing visual field testing using light field displays are described. The light field display (201, 202; 801; 504; 601-604; 704; 801), that can correct for the focus and cylindrical refractive error of the subject, can be used to perform a variety of visual field testing strategies by rendering visual stimuli to the eye (203). The light field display may be included near the subject's eye, or reimaged by a relay optical system (802). Several embodiments of head and arm mounted systems (711; 704) including a near eye light field display (704) are presented.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: February 20, 2018
    Assignee: CARL ZEISS MEDITEC, INC.
    Inventor: Alexandre R. Tumlinson
  • Patent number: 9898816
    Abstract: A diagnosis assisting apparatus includes a display, an imaging unit configured to image a subject, a line of sight detecting unit configured to detect a line of sight direction of the subject from a picked-up image imaged by the imaging unit, a point of view detecting unit configured to detect a point of view of the subject in a display region of the display based on the line of sight direction, and an output controller configured to display a diagnostic image including a natural image and a geometrical image, and the point of view detecting unit detects the point of view of the subject in a case where the diagnostic image is displayed.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: February 20, 2018
    Assignee: JVC KENWOOD Corporation
    Inventors: Shuji Hakoshima, Katsuyuki Shudo, Masaru Ninomiya, Makoto Kito
  • Patent number: 9888844
    Abstract: A control apparatus includes an irradiation unit configured to irradiate a measurement object with a measuring beam, a restriction unit configured to restrict the measuring beam from being incident on the measurement object and to reflect or scatter the measuring beam, and a polarization control unit configured to control, based on the measuring beam reflected or scattered by the restriction unit, polarization of the measuring beam.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: February 13, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tomoyuki Makihira, Yoshihiko Iwase, Makoto Sato, Kazuhide Miyata, Hiroyuki Shinbata, Ritsuya Tomita, Daisuke Kibe
  • Patent number: 9883796
    Abstract: An ophthalmologic system comprising and eye tracker and an OCT system. A method of operating the ophthalmologic system comprises: providing data representing a placement of a first B-scan performed on an eye relative to the eye; performing a measurement on the eye using the eye tracker; determining a placement of the eye relative to the ophthalmologic system based on the measurement using the eye tracker; placing the eye relative to a reference placement of the OCT system based on the provided data and the determined placement; performing A-scans on the eye at at least three A-scan positions; determining a placement of a second B-scan relative to the OCT system based on at least one of the at least three A-scans and the provided data such that the second B-scan and the first B-scan have a substantially same placement relative to the eye; and generating a representation of the second B-scan.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: February 6, 2018
    Assignee: CARL ZEISS MEDITEC AG
    Inventors: Günter Meckes, Konstantinos Filippatos, Thomas Schuhrke, Christoph Hauger, Abouzar Eslami, Stefan Gräber, Christine Kochwagner, Carolin Schiele, Christopher Käsbach
  • Patent number: 9877649
    Abstract: Systems and methods are provided for performing a photorefractive assessment. The system comprises a computing device including an image-capturing device, a display device, and a computer application that is executable on the computing device and operable to perform a method including receiving input specifying subject information, capturing an image using the image-capturing device containing eye pupils of a subject, and analyzing the image captured to determine a distance between the subject and the image-capturing device using the subject information and predetermined interpupilary distance information. A remediation action may be performed if the distance determined is not within an appropriate distance range for the photorefractive assessment. An illuminance level of the environment may be analyzed using the image captured to determine whether lighting conditions are appropriate for performing the photorefractive assessment.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: January 30, 2018
    Assignee: Gobiquity, Inc.
    Inventors: John Michael Tamkin, Peter-Patrick de Guzman
  • Patent number: 9872616
    Abstract: Disclosed herein is a pupillary response scanning device and methods for use in performing swinging flashlight test, brightness saturation test, color discrimination test, and color blindness test. The device may include: a housing configured to provide a first isolated eye enclosure for a first eye and a second isolated eye enclosure for a second eye of a patient; one or more visible light sources, one or more infrared light sources, one or more imaging devices in each isolated eye enclosure; and a control system that may be configured for manipulating the visible light sources, infrared light sources and the imaging devices.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: January 23, 2018
    Inventors: Ehsan Daneshi Kohan, Yaser Mohammadian Roshan, Amirhossein Vejdani, Farzad Hamidi
  • Patent number: 9867532
    Abstract: An optical parameter of an eye is detected using an image collection apparatus that collects an image presented by a fundus. An imaging apparatus adjusts an imaging parameter of an optical path between an eye and the image collection apparatus, wherein the image collection apparatus obtains a clearest image that satisfies a defined clarity criterion or condition. An image processing apparatus processes the clearest image to obtain an optical parameter of the eye. The image of the fundus is captured, and an imaging parameter known in the optical path when the clearest image is captured is found, so that a direction currently being watched by the eye and a distance between the eye and a focusing point can be obtained through optical calculation. Consequently, a position of the focusing point of the eye can be determined precisely for a wide range of concurrent applications for eye control interaction.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: January 16, 2018
    Assignee: BEIJING ZHIGU RUI TUO TECH CO., LTD
    Inventors: Lin Du, Hongjiang Zhang
  • Patent number: 9861277
    Abstract: Interferometry-based methods and apparatus are presented for analyzing one or more wavefronts from a sample, in which the sample wavefronts are interfered with two or more reference wavefronts to produce two or more interferograms in a sufficiently short time period for the interferograms to be captured in a single exposure of an image capture device such as a CCD array. Each interferogram has a unique carrier frequency dependent on the angle between a respective pair of sample and reference wavefronts. In certain embodiments multiple sample and/or reference wavefronts are generated using scanning mirrors, while in other embodiments utilizing multi-wavelength beams multiple sample and/or reference wavefronts are generated with wavelength dispersive elements. The methods and apparatus are suitable for measuring aberrations at one or more positions on the retina of an eye.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: January 9, 2018
    Inventors: Trevor Bruce Anderson, Steven James Frisken, Grant Andrew Frisken, Armin Georg Segref
  • Patent number: 9854971
    Abstract: A system for visualization of eye anatomy includes at least one camera having a view vector along a first axis when in a first position, a housing to which the camera is coupled, wherein the housing engages the head of a patient such that the camera is positioned adjacent an eye of the patient, and an actuator that moves the camera from the first position to a second position with a view vector along a second axis that is offset from the first axis. A method of visualization of eye anatomy includes engaging a patient's head with a housing, positioning at least one camera coupled to the housing adjacent an eye, wherein the camera has a view vector along a first axis when in a first position, and moving the camera to a second position with a view vector along a second axis that is offset from the first axis.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: January 2, 2018
    Assignee: Sanovas Intellectual Property, LLC
    Inventors: Lawrence J. Gerrans, Charles N. Wang
  • Patent number: 9848770
    Abstract: A surgical imaging system is provided. The surgical imaging system includes a surgical microscope and a telecentric optical coherence tomography scanning unit configured to scan a sample through at least one optical component associated with the surgical microscope.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: December 26, 2017
    Assignee: The Cleveland Clinic Foundation
    Inventors: Justis P. Ehlers, Yuankai K. Tao, Sunil K. Srivastava
  • Patent number: 9844316
    Abstract: A corneal endothelial cell analysis method includes: a step of displaying a photographed image including endothelial cells of a cornea of an examinee's eye on a monitor; a step of setting, based on an operation signal from a user interface, regions of the endothelial cells for each or more than one of the cells with respect to the photographed image displayed on the monitor, the setting step including setting the endothelial cell regions on the one photographed image by use of setting modes including at least a first setting mode of setting the endothelial cell regions and a second setting mode different from the first setting mode; and a step of obtaining an analysis result on the endothelial cells of the examinee's eye based on the endothelial cell regions set by the first setting mode and the endothelial cell regions set by the second setting mode.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: December 19, 2017
    Assignee: NIDEK CO., LTD.
    Inventor: Yusuke Sakashita
  • Patent number: 9844320
    Abstract: A method for creating a virtual 2D image of an object moving in a blood vessel includes the steps of: providing an imaging apparatus capable of acquiring 1D images. The imaging apparatus is communicatively coupled to a computer. Multiple 1D images of a substantially fixed footprint on a surface of an organ are acquired over a period of time. A virtual 2D image showing the object moving in the blood vessel is formed by combining by computer the multiple 1D images. The virtual 2D image can be displayed and/or saved to a non-volatile memory. A system to perform the method is also described. Another method for creating a virtual 1D image of an object moving in a blood vessel is also described.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: December 19, 2017
    Assignee: University of Rochester
    Inventor: Jesse Schallek
  • Patent number: 9844321
    Abstract: An ophthalmic surgical system comprises: a camera optically coupled to a surgical microscope; a virtual reality (VR) headset worn by a surgeon; and a VR data processing unit configured to communicate with the surgical microscope, the VR headset, and an ophthalmic surgical apparatus, wherein the VR data processing unit is configured to: project a real time video screen of video received from the camera into the VR headset; project a patient information screen into the VR headset to provide the patient information directly to the surgeon during ophthalmic surgery; project a surgical apparatus information screen into the VR headset; project a surgical apparatus input control screen into the VR headset to provide the surgeon with direct control over the surgical apparatus; and control which ones of the screens are visible in the VR headset based inputs indicating head movements of the surgeon as detected by the VR headset.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: December 19, 2017
    Assignee: Novartis AG
    Inventors: Johan Ekvall, Paul J. Essex, Kirk Todd
  • Patent number: 9844319
    Abstract: An epiretinal membrane (ERM) visualization system includes an OCT system operable to generate an OCT image of a region of a patient's eye, the region of the patient's eye including an ERM. The ERM visualization system further includes an image processing unit operable to process the OCT image to identify the ERM by differentiating the ERM from other structures within the region of the patient's eye and generate an ERM map depicting one or more characteristics (including at least a location of a portion of the ERM within the region of the patient's eye) of the identified ERM. The ERM visualization system further includes a display operable to display the ERM map.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: December 19, 2017
    Assignee: Novartis AG
    Inventors: Michael J. Papac, Hugang Ren, Lingfeng Yu
  • Patent number: 9839351
    Abstract: A method of generating a tomographic image using optical coherence tomography includes: a data obtaining step of obtaining a plurality of pieces of tomographic image data each indicating a tomogram at substantially the same position of an object; a removing step of removing an outlier from the plurality of pieces of tomographic image data; a computation step of computing a motion contrast value based on the plurality of pieces of tomographic image data from which the outlier is removed; and a generation step of generating a motion contrast image of the object based on the motion contrast value.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: December 12, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Goto
  • Patent number: 9833140
    Abstract: Portable corneal topographers and portable corneal topographer modules are disclosed. In one embodiment, a corneal topographer module comprises a housing having a first aperture and a second aperture formed therethrough; and a plurality of optical components disposed within the housing. The plurality of optical components are arranged to direct light generated by a light source through the first aperture to the cornea via a first optical channel when a cornea of a patient's eye is located adjacent to the first aperture; and direct reflected light from the cornea into the housing through the first aperture and to a light detector of a mobile device via a second optical channel when the corneal topographer module is mechanically coupled to the mobile device.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: December 5, 2017
    Assignee: SMART VISION LABS, INC.
    Inventor: Yaopeng Zhou
  • Patent number: 9827066
    Abstract: Methods and systems for performing an ophthalmic surgical procedure include pulsed illumination of target tissue. The systems may include an illumination instrument arranged to illuminate tissue at a surgical site during the ophthalmic surgical procedure. A light source provides illumination to the illumination instrument for emission from the illumination instrument toward the surgical site. A controller communicates with the light source and activates the light source to provide illumination pulses at a frequency above the flickering perception in humans and with enough light for cameral exposure and human light perception. The light source pulses to minimize phototoxicity.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: November 28, 2017
    Assignee: NOVARTIS AG
    Inventor: Niels Alexander Abt
  • Patent number: 9826901
    Abstract: The present invention relates to an adaptor for a slit lamp microscope. According to one embodiment of the present invention, the invention provides the advantages of: facilitating the maintenance/repair of a slit lamp microscope since a camera member used for the slit lamp microscope is simply attached or detached; simply and easily inspecting and photographing a subject's eye; and obtaining a high-resolution video or image for the subject's eye at low costs.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: November 28, 2017
    Inventors: Dong Kwan Kim, Dong Sik Kim
  • Patent number: 9820645
    Abstract: The present invention relates to an ophthalmologic apparatus for acquiring depth information of an eye including a light source; a measurement optical path guiding measurement light; a reference optical path generating reference light; and a detector generating a detection signal containing an interference signal of the measurement light via the measurement optical path and the reference light coming from the reference optical path; an actuator driving at least part of the interference optical system to vary an optical path length difference between the measurement optical path and the reference optical path; a standard optical system including optical members disposed corresponding to the optical path length differences in one of the measurement optical path and the reference optical path. Optical members guide part of the measurement light or the reference light to the detector.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: November 21, 2017
    Assignee: NIDEK CO., LTD.
    Inventors: Masakazu Endo, Masaaki Hanebuchi, Yasuhiro Furuuchi
  • Patent number: 9820646
    Abstract: An image processing apparatus converts an intensity distribution of at least one of a plurality of regions of a tomographic image of an eye by using an amount of conversion which is greater than an amount of conversion used to convert an intensity distribution of another one of the plurality of regions, the tomographic image being obtained by performing tomographic imaging on the eye by using optical interference.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: November 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Uchida, Yukio Sakagawa, Krzysztof Marek Piotrowski