Objective Type Patents (Class 351/205)
  • Patent number: 12029485
    Abstract: An ophthalmic microscope including an observation optical system having a first focal point in front of an eye; an objective auxiliary lens positionable on the eye side of an objective lens in the observation optical system or releasable therefrom, a focal point when the objective auxiliary lens is positioned to a second focal point on an anterior ocular eye position; and a front lens positionable further toward the eye side than the first focal point or releasable from the position, a focal point through the eye's crystalline lens when the front lens is set to a third focal point and a posterior ocular segment position of the eye, the objective auxiliary lens set and the front lens released during anterior ocular segment observation, the front lens set and the objective auxiliary lens released during posterior ocular segment observation, without changing a positional relationship between the objective lens and eye.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: July 9, 2024
    Assignee: TOPCON CORPORATION
    Inventors: Yasufumi Fukuma, Kazuhiro Oomori
  • Patent number: 12029490
    Abstract: The present invention relates to systems for low-energy (e.g., 1.0 nJ-7.0 nJ) photoacoustic microscopy and methods for employing such systems. In certain embodiments, such systems employ a low-energy nanosecond pulsed laser beam (NPLB), at least two amplifiers, and a data acquisition system with at least three channels to generate at least three digital signals (e.g., which are averaged and normalized to the energy of the NPLB). In other embodiments, provided herein are systems for combined use of photoacoustic microscopy, dye-based microscopy (e.g., with fluorescein), and optical coherence tomography.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: July 9, 2024
    Assignee: The Regents of the University of Michigan
    Inventors: Wei Zhang, Xueding Wang, Yannis Paulus
  • Patent number: 12025859
    Abstract: Optical apparatuses for enhancing scotopic vision. The optical apparatuses include a lens. In some instances, the optical apparatuses include a frame. The lens has an optical power adapted to focus light specifically under scotopic vision conditions in a user's eye. In some examples, the optical apparatuses include a spectral filter adapted to allow transmission of selected wavelengths of light through the spectral filter.
    Type: Grant
    Filed: July 19, 2023
    Date of Patent: July 2, 2024
    Inventor: Robert Bush
  • Patent number: 11998487
    Abstract: An ophthalmological device and system is described that allows the simultaneous imaging of an eye using both scanning laser ophthalmoscopy (SLO) and optical coherence tomography (OCT). Further the device and system is capable of targeting and delivering a femtosecond treatment laser for treatment of an eye condition. The system further includes a machine learning algorithm to provide a suggested treatment procedure.
    Type: Grant
    Filed: September 27, 2023
    Date of Patent: June 4, 2024
    Assignee: PulseMedica Corp.
    Inventors: Nir Katchinskiy, Abdulhakem Elezzabi
  • Patent number: 11977279
    Abstract: Provided is a colored contact lens having: a lens; and a colored region formed in the lens, at least a part of the colored region is arranged at a position overlapping an iris of a wearer when the colored contact lens is worn, and the colored region has infrared transparency.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: May 7, 2024
    Assignee: NEC CORPORATION
    Inventor: Mamoru Inoue
  • Patent number: 11974807
    Abstract: An OCT system for measuring a retina as part of an eye health monitoring and diagnosis system. The OCT system includes an OCT interferometer, where the interferometer comprises a light source or measurement beam and a scanner for moving the beam on the retina of a patient's eye, and a processor configured to execute instructions to cause the scanner to move the measurement beam on the retina in a scan pattern. Measurement data may be processed using a decurving process to enhance the resolution of the ILM layer and provide improved determinations of retinal thickness.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: May 7, 2024
    Assignee: ACUCELA INC.
    Inventors: Ryo Kubota, Stephan Wyder, Philip M. Buscemi, Matthias Pfister, Cyril Stoller
  • Patent number: 11953667
    Abstract: A device by which the magnification stages of a magnification selector based on Galilean telescope systems can be adjusted by a motor. The magnification selector has a sensor that transmits the currently magnification stage to a control unit; in the control unit, an assignment of the magnification stages present on the magnification selector to a sequence of the magnification stages, organized based on size, is stored. For the user, there are operating elements connected to the control unit for selecting a magnification stage. In order to set the magnification stage selected by the user via the operating elements, the magnification selector has an actuator, which is connected to the control unit to receive appropriate control signals. Although provided in particular for slit lamps and surgical microscopes having eyepieces, the solution can also be applied in other ophthalmological devices or devices from other technical fields.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 9, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: David Golz, Dietrich Martin, Ingo Koschmieder
  • Patent number: 11955240
    Abstract: A neural-network-based-implemented ophthalmologic intelligent consultation method includes: performing correction filtering on a consultation voice of a patient, framing the voice into a consultation voice frame sequence, generating a consultation text corresponding to the consultation voice frame sequence based on phoneme recognition and phoneme transcoding, and extracting an ophthalmologically-described disease; performing gray-level filtering, primary picture segmentation, and size equalization operation on an eye picture set of the to-be-diagnosed patient to acquire a standard eyeball picture group; extracting eye white features, pupil features and blood vessel features from the standard eyeball picture group, performing lesion feature analysis on the eye white features, the pupil features and the blood vessel features to acquire an ophthalmologically-observed disease, and based on the ophthalmologically-observed disease and the ophthalmologically-described disease, generating a consultation result.
    Type: Grant
    Filed: September 12, 2023
    Date of Patent: April 9, 2024
    Assignee: Renmin Hospital of Wuhan University (Hubei General Hospital)
    Inventors: Xuan Xiao, Xiang Gao, Ting Chen, Ting Su, Xuejie Li
  • Patent number: 11944383
    Abstract: Apparatuses and methods for determining a refractive error of an eye are disclosed. A series of images of light coming from an eye are captured with varying optical powers, and the refractive error is then calculated based directly on the series of images used as approximate point spread functions. The calculation includes determining a modulation transfer area as a function of meridian angle and optical power in an angle range from 0° to 180° based on the series of images, and to calculate the refractive error based on the modulation transfer area as a function of angle and optical power.
    Type: Grant
    Filed: August 15, 2023
    Date of Patent: April 2, 2024
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Nikolai Suchkov, Alexander Leube, Siegfried Wahl
  • Patent number: 11931104
    Abstract: A system and method of assessing vision quality of an eye is presented, with a controller having a processor and tangible, non-transitory memory on which instructions are recorded. The controller is configured to selectively execute at least one machine learning model. Execution of the instructions by the processor causes the controller to: receive wavefront aberration data of the eye and express the wavefront aberration data as a collection of Zernike polynomials. The controller is configured to obtain a plurality of input factors based on the collection of Zernike polynomials. The plurality of input factors is fed into the at least one machine learning model, which is trained to analyze the plurality of input factors. The machine learning model generates at least one vision correction factor based in part on the plurality of input factors.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: March 19, 2024
    Assignee: Alcon Inc.
    Inventors: Ramesh Sarangapani, Mark VonTress
  • Patent number: 11918382
    Abstract: Systems and techniques that facilitate background monitoring of eye health are provided. In various embodiments, a system can comprise a sensor component of a device. In various aspects, the sensor component can detect one or more physical characteristics associated with an entity. In various embodiments, the system can further comprise a diagnostic component of the device. In various instances, the diagnostic component can estimate in a background of the device a health condition of an eye of the entity based on the one or more physical characteristics. In various cases, estimating the health condition in the background of the device can facilitate real-time monitoring of the eye health of the entity without interrupting the entity's normal use of the device.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: March 5, 2024
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Raghav Batta, Elnatan Mataev, Heidi E. Fritz
  • Patent number: 11894125
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for training a fundus image processing machine learning models that is configured to process one or more fundus images captured by a fundus camera to generate a predicted label. One of the methods includes generating training data, comprising: receiving sets of one or more training fundus images captured by a fundus camera; receiving, for each of the sets, a ground truth label assigned to a different image of the eye of the patient corresponding to the set that has been captured using a different imaging modality; and generating, for each set of training fundus images, a training example that includes the set of training fundus images in association with the ground truth label assigned to the different image of the patients eye; and training the machine learning model on the training examples in the training data.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: February 6, 2024
    Assignee: Google LLC
    Inventors: Lily Hao Yi Peng, Dale R. Webster, Avinash Vaidyanathan Varadarajan, Pinal Bavishi
  • Patent number: 11883104
    Abstract: A display system can include a head-mounted display configured to project light to an eye of a user to display virtual image content at different amounts of divergence and collimation. The display system can include an inward-facing imaging system images the user's eye and processing electronics that are in communication with the inward-facing imaging system and that are configured to obtain an estimate of a center of rotation of the user's eye. The display system may render virtual image content with a render camera positioned at the determined position of the center of rotation of said eye.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: January 30, 2024
    Assignee: Magic Leap, Inc.
    Inventors: Samuel A. Miller, Lomesh Agarwal, Lionel Ernest Edwin, Ivan Li Chuen Yeoh, Daniel Farmer, Sergey Fyodorovich Prokushkin, Yonatan Munk, Edwin Joseph Selker, Bradley Vincent Stuart, Jeffrey Scott Sommers
  • Patent number: 11871993
    Abstract: Techniques are disclosed for systems and methods to provide dry eye and/or tear film hydration monitoring in the context of ocular aberrometry. An ocular aberrometry system includes a wavefront sensor configured to provide wavefront sensor data associated with an optical target monitored by the ocular aberrometry system and a logic device configured to communicate with the wavefront sensor. The logic device is configured to receive ocular aberrometry output data including at least the wavefront sensor data provided by the wavefront sensor, determine a tear film hydration state associated with the optical target based, at least in part, on the received ocular aberrometry output data, and generate user feedback corresponding to the determined tear film hydration state based, at least in part, on the received aberrometry output data and/or the determined tear film hydration state.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: January 16, 2024
    Assignee: Alcon Inc.
    Inventors: Max Hall, Thomas Padrick, Edwin Jay Sarver
  • Patent number: 11867984
    Abstract: A method for determining a near point and a near point distance of a person is disclosed, as well as methods for determining a spherical refractive power. In one implementation, optotypes are displayed on a mobile terminal and the person is asked to move the mobile terminal to the near point of the person. The position of the mobile terminal is determined on the basis of images of the surroundings and measurements of an acceleration of the mobile terminal. The near point distance can then be determined from the position of the mobile terminal at the near point and a position of the eyes of the person. Corresponding computer programs and corresponding mobile terminals are also disclosed.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: January 9, 2024
    Assignee: Carl Zeiss Vision International GmbH
    Inventor: Claudius Weimann
  • Patent number: 11857261
    Abstract: A prism array light redistribution apparatus for an eye imaging system including light transmitting fibers, light receiving fibers, and a micro prism array optically coupled to bridge the light transmitting fibers and the light receiving fibers, configured to receive light having a bell-shaped angular distribution from the light transmitting fibers and refract light emitted by the light transmitting fibers to enter the light receiving fibers.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: January 2, 2024
    Inventors: Yan Zhou, Willem Crone, John Allison
  • Patent number: 11839430
    Abstract: In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: December 12, 2023
    Assignee: Doheny Eye Institute
    Inventors: Alexander C. Walsh, Paul G. Updike, Srinivas R. Sadda
  • Patent number: 11826102
    Abstract: A scan area setting unit of an exemplary ophthalmic apparatus sets a scan area in a region passing through an iris outer edge. A first scan controller controls an OCT optical system to apply an OCT scan to the scan area. An image quality evaluating unit calculates an image quality evaluation value of an image from the OCT scan. A corner angle image detecting unit analyzes the image to detect a corner angle image. A position judging unit judges whether the corner angle image is located within a first area in an image frame. A second scan controller controls the OCT optical system to apply an OCT scan of a predetermined pattern to the anterior segment, if the image quality evaluation value is equal to or greater than a threshold and the corner angle image is located within the first area.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: November 28, 2023
    Assignee: TOPCON CORPORATION
    Inventor: Yusuke Ono
  • Patent number: 11822714
    Abstract: An electronic device is configured to obtain an eye image in which an eye that looks at a display is captured. The electronic device includes at least one memory storing instructions; and at least one processor which executes the stored instructions causing the at least one processor to: perform line-of-sight detection, based on the obtained eye image; and provide, based on at least one of a position of a pupil image in the eye image and a number of corneal reflection images in the eye image, a predetermined notification regarding a method of adjusting a viewing state in which the display is visually perceived.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: November 21, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Yamasaki, Hiroshi Kudo
  • Patent number: 11813022
    Abstract: An ophthalmic apparatus of an exemplary aspect performs the first and second OCT scans on a subject's eye. The first OCT scan is performed on the first region including the first site of the subject's eye, and the second OCT scan is performed on the second region including the second site. The ophthalmic apparatus acquires the first deviation information of the subject's eye prior to the first OCT scan and performs alignment, and also acquires the second deviation information of the subject's eye prior to the second OCT scan and performs alignment. The ophthalmic apparatus calculates the distance between the first site and the second site based on the first data acquired through the first OCT scan and second data acquired through the second OCT scan.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: November 14, 2023
    Assignee: TOPCON CORPORATION
    Inventors: Yasufumi Fukuma, Takefumi Hayashi, Yoko Tatara
  • Patent number: 11804304
    Abstract: Neurological abnormalities are often discovered through observation by health care providers, and/or parent report. Many neurodevelopmental disorders such as ASD are purely identified through behavioral analysis, and cannot be screened for using a biomarker or quantitative stimulus-response test. Current screening tools contain subjective components based on parent report and clinician observation, vary in consistency of use across providers, and demands resources, knowledge, and access to skilled expertise. As a result, the only tests used today require lengthy and subjective behavioral analysis and often, miss or misidentify neurodevelopmental disorders contributing to a delayed diagnosis. The technology disclosed herein allow for a solution to this systemic problem.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: October 31, 2023
    Assignee: WASHINGTON STATE UNIVERSITY
    Inventors: Georgina T. F. Lynch, Lars Erik Neuenschwander
  • Patent number: 11786119
    Abstract: Systems and methods for initializing and calibrating an eye tracking system include an eye tracker configured to capture a first image of an eye from a first location and a second image of the eye from a second location, and a control processor configured to detect a first plurality of eye characteristics from the first image, the eye characteristics having first corresponding image coordinates, detect a second plurality of eye characteristics from the second image, the eye characteristics having second corresponding image coordinates, and determine a calibration offset and a calibration gain. The control processor may be further configured to determine an eye fixation position and orientation relative to an optical axis of the eye tracker based at least in part on the first corresponding image coordinates and/or the second corresponding image coordinates.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: October 17, 2023
    Assignee: Alcon Inc.
    Inventor: Martin Gründig
  • Patent number: 11779212
    Abstract: A binocular scanning laser ophthalmoscope (SLO) is used to track the fixational eye movement of each of the eyes of a subject. The binocular SLO may include right eye optics for imaging a portion of the retina of the right eye and left eye optics for imaging a portion of the retina of the left eye. Shifts in the imaged portion of the retina with respect to a reference image of the retina may be used to measure and track eye movement. The right eye optics and left eye optics may be separate imaging paths, each with its own bi-directional MEMS scanning mirror and Keplerian telescope. The use of the MEMS scanning mirrors minimizes the size and weight of the binocular SLO.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: October 10, 2023
    Assignee: C. Light Technologies, Inc.
    Inventors: Christy Sheehy, Zachary Helft, Andrew Norton, Taylor Page, Michael Simonsen, Yun Hui Ni
  • Patent number: 11779205
    Abstract: In classifying images by machine learning, provided are an image classification method, device, and program for classifying the image from which the feature difference is hardly detected, in particular, classifying the interference fringe image of tear fluid layer by the dry eye types. The method includes a step of acquiring a feature value from an interference fringe image of tear fluid layer for learning, a step of constructing a model for classifying an image from the feature value acquired from the interference fringe image of tear fluid layer for learning, a step of acquiring the feature value from an interference fringe image of tear fluid layer for testing, and a step of performing classification processing for classifying the interference fringe image of tear fluid layer for testing by types of dry eye using the model and the feature value acquired from the interference fringe image of tear fluid layer.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: October 10, 2023
    Assignee: KOWA COMPANY, LTD.
    Inventors: Reiko Arita, Katsumi Yabusaki
  • Patent number: 11779203
    Abstract: Illusionary motion-in-depth for vision therapy or entertainment is provided by altering the positional disparity by relative speed of movement and/or delay of movement of images of an image pair in motion which are viewed on a digital display device by stereoscopic means.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: October 10, 2023
    Inventor: Albert John Hofeldt
  • Patent number: 11730357
    Abstract: The exemplified systems and methods disclosed herein involve the contemporaneous and concurrent stimulation of both eyes of a patient with dissimilar visual scenes that substantially span an expected or normal visual field of both eyes. During an assessment via the exemplified system and methods, a test eye (i.e., eye being assessed) is presented a visual scene that is rich in contours (e.g., a scene with rich texture patterns) that substantially span an expected or normal visual field of a person while the non-tested eye is presented an impoverished visual scene (e.g., a contour-free or non-distinguishing-contour scene, e.g., with a homogeneous color, with respect to the contour-rich scene). Defects in the visual field can be detected by assessing for breaks or discontinuity in the observation of the contour-rich scene by the person.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: August 22, 2023
    Assignee: Ohio State Innovation Foundation
    Inventors: Teng Leng Ooi, Chao Han
  • Patent number: 11733029
    Abstract: The invention relates to a method and a computer program for estimating shape parameters of an image data set (1) of a fovea (100), comprising the steps of: Acquiring an image data set (1) of a macula (50), comprising a foveal pit (101) and a foveal rim (102) at least partially, Estimating the center of the foveal pit (101) from the image data set (1), Estimating from the center of the foveal pit (101), radially extending height profiles (c) of the fovea (100), For each height profile (c), fitting a model-function to the height profile (c), Estimating for each height profile (c) a set of fit parameters from the fitted model-function, Determining from the sets of estimated fit parameters at least one shape parameter of the fovea (100), particularly of the foveal pit (101). Determining at least one shape feature of at least a part of the fovea.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: August 22, 2023
    Assignee: CHARITÉ UNIVERSITÄTSMEDIZIN BERLIN
    Inventors: Alexander Brandt, Ella Maria Kadas, Sunil Yumar Yadav, Seyedamirhosein Motamedi, Paul Friedemann
  • Patent number: 11717152
    Abstract: A method, a computer program and a device for evaluating a tear fluid layer non-invasively. The method, computer program, and device include a step of detecting a time when color information in a predetermined region in a tear fluid layer interference fringe image changes by a threshold value or more as an eyelid opening time, a step of extracting an image at the time when the predetermined time has passed from the eyelid opening time as an extracted image from the tear fluid interference fringe images, a determination value calculation step of calculating a determination value from the color information in a pixel in a local region by scanning a predetermined target region, a step of detecting a corresponding pixel by comparing the calculated determination value and a threshold value, and an evaluation step of evaluating tear fluid layer breakdown by comparing the detected pixel and a threshold value.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: August 8, 2023
    Assignee: KOWA COMPANY, LTD.
    Inventor: Katsumi Yabusaki
  • Patent number: 11715231
    Abstract: Head pose information may be determined using information describing a fixed gaze and image data corresponding to a user's eyes. The head pose information may be determined in a manner that is disregards facial features with the exception of the user's eyes. The head pose information may be usable to interact with a user device.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: August 1, 2023
    Assignee: Tobii AB
    Inventor: Mårten Skogö
  • Patent number: 11707194
    Abstract: An instrument includes a housing with a lower hand-held portion having a user-input button and a display for displaying an MPOD score for the user. The instrument further includes a viewing tube coupled to the hand-held portion. The viewing tube terminates in an eye cup. The viewing tube is transverse to the lower hand-held portion and transmits light from a light source in a direction toward the macula. The light source is an LED and provides two colored lights alternating at an initial frequency that is not perceptible by the user. The frequency decreases from the initial frequency until the user activates the user-input button in response to a frequency at which the user perceives a flicker of the two colored lights. The frequency at the perceived flicker relates to the MPOD score of the user. The MPOD score correlates to the amount of macular pigment.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: July 25, 2023
    Assignee: ZeaVision LLC
    Inventor: Joshua J. Park
  • Patent number: 11700999
    Abstract: Accommodating ophthalmic devices including an ambient light sensor and an accommodation sensor and related methods of use are described. In an example, the accommodation sensor is configured to measure a biological accommodation signal of an eye on or in which the accommodating ophthalmic device is mounted. In an embodiment, the accommodating ophthalmic device is configured to measure the biological accommodation signals based on ambient light, such as based on an intensity or amount of ambient light, incident on the accommodating ophthalmic device. Such ambient light may be measured with the ambient light sensor.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: July 18, 2023
    Inventor: Georges Goetz
  • Patent number: 11694574
    Abstract: In one aspect, a device includes at least one processor and storage accessible to the at least one processor. The storage includes instructions executable by the at least one processor to receive input from at least one sensor, identify a characteristic of a user based on the input from the at least one sensor, and alter at least one setting of the device based on the identification of the characteristic. The at least one setting is related to presentation of content using the device.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: July 4, 2023
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: John Carl Mese, Arnold S. Weksler, Mark Patrick Delaney, Nathan J. Peterson, Russell Speight VanBlon
  • Patent number: 11684429
    Abstract: A system and method for providing image guidance for placement of one or more medical devices at a target location. The system can be used to determine one or more affected regions corresponding to the operation of one or more medical devices and display at least a portion of the one or more affected regions. The affected regions can correspond to predicted affected regions and/or dynamic affected regions and can be based at least in part on a variance parameter of the medical device.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: June 27, 2023
    Assignee: InnerOptic Technology, Inc.
    Inventors: Andrei State, Luv Kohli, Sharif Razzaque, Brian Heaney
  • Patent number: 11672420
    Abstract: Detecting position information related to a face, and more particularly to an eyeball in a face, using a detection and ranging system, such as a Radio Detection And Ranging (“RADAR”) system, or a Light Detection And Ranging (“LIDAR”) system. The position information may include a location of the eyeball, translational motion information related to the eyeball (e.g., displacement, velocity, acceleration, jerk, etc.), rotational motion information related to the eyeball (e.g., rotational displacement, rotational velocity, rotational acceleration, etc.) as the eyeball rotates within its socket.
    Type: Grant
    Filed: October 4, 2020
    Date of Patent: June 13, 2023
    Assignee: Aeva, Inc.
    Inventors: Richard L. Sebastian, Kendall L. Belsley
  • Patent number: 11672419
    Abstract: An ophthalmic measurement and laser surgery system includes: a laser source; a corneal topography subsystem; an axis determining subsystem; a ranging subsystem comprising an Optical Coherence Tomographer (OCT); and a refractive index determining subsystem. All of the subsystems are under the operative control of a controller. The controller is configure to: operate the corneal topography subsystem to obtain corneal surface information; operate the axis determining subsystem to identify one or more ophthalmic axes of the eye; operate the OCT to sequentially scan the eye in a plurality of OCT scan patterns, the plurality of scan patterns configured to determine an axial length of the eye; operate the refractive index determining subsystem so to determine an index of refraction of one or more ophthalmic tissues, wherein at least one of the corneal surface information, ophthalmic axis information, and axial length is modified based on the determined index of refraction.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: June 13, 2023
    Assignee: AMO Development, LLC
    Inventors: David A. Dewey, Javier G. Gonzalez, Georg Schuele, David D. Scott
  • Patent number: 11675197
    Abstract: Systems and methods for auto-calibrating a virtual reality (VR) or augmented reality (AR) head-mounted display to a given user with a refractive condition without adding corrective lenses to optical elements of the head-mounted display and without requiring subjective refraction procedures. A method comprises projecting a grid onto an eye of a user using a light source of a head-mounted display worn by the user, capturing the grid as-reflected from the eye using a camera of the head-mounted display, determining a pattern of a reflection of the grid based on the grid as-reflected, generating an aberration map based on a difference between the pattern as-reflected and the grid as-projected, and determining a correction to apply to at least one viewing lens of the head-mounted display worn by the user based on the aberration map.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: June 13, 2023
    Assignee: United Services Automobile Association (USAA)
    Inventor: Amanda D. Fernandez
  • Patent number: 11622680
    Abstract: Systems and methods for allowing a user with no prior training to receive automated vision measurements without assistance of another individual by using subjective inputs from a user, which may be supplemented by a predictive method. The predictive method comprising artificial intelligence, patient data, user inputs, automated inputs from cameras and the like. The system may make use of a specific algorithm, decision tree, set of instructions, programming instructions, and the like, in order to provide vision measurements. The system combines programming instructions executed by a processor, output devices, input controls, and a plurality of corrective lenses to find a patient or user's vision measurements.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: April 11, 2023
    Inventors: Ryan R. Merriam, Matthew A. Phares
  • Patent number: 11617509
    Abstract: An ophthalmic device including an illumination module which scans light across a region of the retina of an eye when the pupil is disposed at a focal point of the illumination module. The ophthalmic device further comprises components (2, 3-1, 4-1) for: aligning the pupil with the focal point; monitoring a position of the pupil relative to the focal point and maintaining the alignment based on the monitored position; aligning a scan location of the illumination module on the retina to a target scan location while the alignment of the pupil with the focal point is being maintained, wherein the illumination module performs a scan at the target scan location. The ophthalmic device further maintains the scan location at the target scan location while the alignment of the pupil with the focal point is being maintained, using scan location correction information based on retinal feature information.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: April 4, 2023
    Assignee: OPTOS PLC
    Inventors: Alan Anderson, Iain Gourlay, Praveen Ashok
  • Patent number: 11617683
    Abstract: An ophthalmic laser system for generating a first beam at a first wavelength on a first beam path and a second beam at a second wavelength on a second beam path, and directing optics to selectively direct the first beam or the second beam to a treatment beam path. The ophthalmic laser system incorporates a reflex coaxial illuminator comprising a reflex mirror movable on an axis from a position out of the treatment beam path to a position in the treatment beam path to direct illumination into an illumination path coaxial with the treatment beam path. The reflex mirror is adapted to transmit a beam that follows the second beam path.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: April 4, 2023
    Assignee: ELLEX MEDICAL PTY LTD
    Inventors: Bradley Barrett, David Haarhoff, Timothy Dixon
  • Patent number: 11559198
    Abstract: A mask for performing an eye exam of a subject includes one or more optically transparent sections for transmitting an incident light beam therethrough and incident on the subject's eye. In some embodiments, the one or more optically transparent sections are coated with an anti-reflective coating configured to reduce reflection of the incident light beam by the one or more optically transparent sections. In some embodiments, the one or more optically transparent sections may have a portion thereof that is tilted with respect to the incident light beam when the mask is optically interfaced with the docking portion of an ophthalmic instrument, such that the incident light beam forms a finite angle of incidence with respect to the corresponding portion of the optically transparent sections.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: January 24, 2023
    Assignee: Envision Diagnostics, Inc.
    Inventors: Alexander C. Walsh, Paul G. Updike, Richard Castro
  • Patent number: 11547294
    Abstract: An ophthalmic apparatus of an exemplary aspect performs the first and second OCT scans on a subject's eye. The first OCT scan is performed on the first region including the first site of the subject's eye, and the second OCT scan is performed on the second region including the second site. The ophthalmic apparatus acquires the first deviation information of the subject's eye prior to the first OCT scan and performs alignment, and also acquires the second deviation information of the subject's eye prior to the second OCT scan and performs alignment. The ophthalmic apparatus calculates the distance between the first site and the second site based on the first data acquired through the first OCT scan and second data acquired through the second OCT scan.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: January 10, 2023
    Assignee: TOPCON CORPORATION
    Inventors: Yasufumi Fukuma, Takefumi Hayashi, Yoko Tatara
  • Patent number: 11547296
    Abstract: A prism array light redistribution apparatus for an eye imaging system including light transmitting fibers, light receiving fibers, and a micro prism array optically coupled to bridge the light transmitting fibers and the light receiving fibers. The array may be further configured to receive light having a bell-shaped angular distribution from the light transmitting fibers and refract the received light to enter the light receiving fibers such that a square-shaped angular distribution of light emits from a light emitting end of the light receiving fibers.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: January 10, 2023
    Inventors: Yan Zhou, Willem Crone, John Allison
  • Patent number: 11540710
    Abstract: Systems and methods according to present principles use touchscreen-based devices such as tablet computers or other computers incorporating touchscreens to both run the test and to receive input/output. It will be understood that any such device may be employed, so long as a display, means for user input, and means for eye tracking, are provided, and so long as its display screen is large enough to effectively test visual field.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: January 3, 2023
    Inventor: Jeffrey Goldberg
  • Patent number: 11534339
    Abstract: During a process of refractive index modification of an intraocular lens (IOL) using an ophthalmic laser system, optical position monitoring of the IOL is performed by a video camera system viewing the top surface of the IOL. Fiducials are incorporated into the IOL at manufacture, or created in-vivo with laser. The monitoring method employs a defined area of interest (AOI) to limit the number of pixels to be analyzed, to achieve adequately high acquisition speed. In one example, the AOI contains 5 camera scan line segments, each line segment having sufficient pixels to create a stable amplitude signature. Successive frames of the AOI are analyzed to detect movement of the fiducial and/or to determine whether the fiducial has been lost.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: December 27, 2022
    Assignee: AMO Development, LLC
    Inventors: David A. Dewey, Michael Wiltberger, Phillip Gooding, Georg Schuele
  • Patent number: 11534338
    Abstract: The invention relates to a system for laser photocoagulation of the retina, comprising: a photocoagulation laser (1); an optical path (5) connecting the upstream photocoagulation laser (1) to a downstream laser outlet opening (6) intended to be positioned in front of the retina; an adaptive optical element (9) positioned in the optical path and configured to modify the wavefront of the laser beam being propagated in the optical path, in order to compensate for aberrations of the eye that occur as far as the retina; a position control loop (10) controlling a first actuator (14) positioned in the optical path downstream of the adaptive optical element in order to control the position of the laser outlet opening relative to the retina to be treated; and at least one imaging device (8) configured to obtain an image of the retina diverted from the optical path.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: December 27, 2022
    Assignees: QUANTEL MEDICAL, OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES (ONERA)
    Inventors: Christian Chabrier, Serge Meimon, Patrice Gayot, Cyril Petit, Pedro Baracal De Mece, Benjamin Wassmer
  • Patent number: 11523046
    Abstract: A computer implemented system and method for generating a focus corrected image of a sample disposed on a sample holder of an imaging system is disclosed. The imaging system includes an image sensor and a lens moveable relative to the image sensor between a first position and a second position. A characteristic map of the lens is developed that associates coordinates of each pixel of an image generated by the imaging sensor with one of a first plurality of locations of the lens between the first position and the second position. An image generator develops an output pixel of a focus-corrected image of a sample from a plurality of images of the sample acquired when the lens is positioned at a corresponding one of a second plurality of locations of the lens between the first position and the second position.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: December 6, 2022
    Assignee: Molecular Devices, LLC
    Inventors: Dihui Hong, Stephen Rhein, Avrum Cohen, Steve Luke
  • Patent number: 11500225
    Abstract: The present disclosure relates to eyeglass and a method for adjusting incident light into eyes. The eyeglass include: a crystalline lens condition acquisition member configured to acquire a condition of a crystalline lens of a user who wears the eyeglass; a lens of eyeglass including an electrowetting dual-liquid zoom lens assembly, the electrowetting dual-liquid zoom lens assembly including insulating liquid and conductive liquid which are encapsulated and driving electrodes configured to apply a voltage to the insulating liquid and the conductive liquid; and a driving device coupled to the crystalline lens condition acquisition member and the driving electrodes and configured to adjust the voltage of the driving electrodes in the case where the crystalline lens is in a tightened condition so as to convert light transmitted through the eyeglass to parallel light.
    Type: Grant
    Filed: December 25, 2019
    Date of Patent: November 15, 2022
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Yang Wang, Liangliang Li, Zheng Liu
  • Patent number: 11497397
    Abstract: An ophthalmologic apparatus includes an objective lens, a refractive power measurement optical system, an inspection optical system, and a corneal shape measurement optical system. The refractive power measurement optical system projects light onto a subject's eye via the objective lens and detects returning light from the subject's eye. The inspection optical system includes an optical scanner. The inspection optical system deflects light from a light source, projects the light deflected by the optical scanner onto the subject's eye via the objective lens, and detects returning light from the subject's eye. The corneal shape measurement optical system projects an arc-like or circumferential measurement pattern from an outer edge side of the objective lens onto the subject's eye and detects returning light from a cornea of the subject's eye.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 15, 2022
    Assignee: TOPCON CORPORATION
    Inventors: Yoko Tatara, Michiko Nakanishi, Shunichi Morishima
  • Patent number: 11501427
    Abstract: A medical imaging apparatus (1) and method for imaging a light-sensitive object (2), such as tissue (3) of the eye (4), displays the object (2) in spectral bands (30) of the visible light range (37) in which the object is sensitive and cannot be illuminated. The apparatus (1) has a camera (8) for capturing input images (10) in which a spectral signature (36) of the object is represented by an input set (15) of spectral bands (16). The apparatus generates output images (22) in which the spectral signature (60) in the visible light range (37) is represented by an output set (29) of spectral bands (30). Replacing at least one input-only spectral band (38) in the input set (15) by at least one output-only spectral band (39) in the output set (29) enables capture of input images (10) in spectral bands (16) where the object (2) has less sensitivity, such as in the non-visible light-range (18), and display of the object (2) in spectral bands (30) where the object would be too sensitive for illumination (40).
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: November 15, 2022
    Assignee: LEICA INSTRUMENTS (SINGAPORE) PTE. LTD.
    Inventor: George Themelis
  • Patent number: 11478147
    Abstract: An optometry system for examining a subject eye of an examinee includes an optometry device for examining the subject eye, an imaging unit that captures an image of an examination room including the examinee and the optometry device, and a remote operation unit that includes a display unit which displays an operation screen for operating the optometry device and an captured image captured by the imaging unit, and a display control unit which controls display of the display unit to display the operation screen and the captured image on the display unit. The remote operation unit enables an examiner to observe the captured image displayed on the display unit to guide the examinee to an examination position.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 25, 2022
    Assignee: NIDEK CO., LTD.
    Inventor: Yukihiro Higuchi