Including Projected Target Image Patents (Class 351/211)
  • Patent number: 10413172
    Abstract: Systems and methods for assessing the visual acuity of person using a computerized consumer device are described.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: September 17, 2019
    Assignee: 1-800 CONTACTS, INC.
    Inventors: Brent Jensen, Tighe Racicot, Chad Allen, Scott Stromberg, Dustin Hurst, Rico Lujan
  • Patent number: 10398304
    Abstract: The present disclosure relates generally to systems and method for testing and determining corrective lens prescription for a patient. In an example embodiment, a method includes using a hand-portable first electronic device, a second electronic device with a computerized screen, and a server to conduct a vision test for a person. The vision test includes determining, an axis prescription, a cylinder prescription, and a sphere prescription for each eye of the person. A corrective lens prescription is provided for the person based, at least in part, on the determined axis, cylinder, and sphere prescription for each eye of the person.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: September 3, 2019
    Assignee: Visibly, Inc.
    Inventor: Steven P. Lee
  • Patent number: 10379351
    Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: August 13, 2019
    Assignee: Magic Leap, Inc.
    Inventors: Nicole Elizabeth Samec, John Graham Macnamara, Christopher M. Harrises, Brian T. Schowengerdt, Rony Abovitz, Mark Baerenrodt
  • Patent number: 10357150
    Abstract: A method of determining a geometrical measurement of a retina of an eye, comprising obtaining a two dimensional representation of at least a portion of the retina of the eye (34), deriving a geometrical remapping which converts the two dimensional representation of the retinal portion to a three dimensional representation of the retinal portion (36), using one or more coordinates of the two dimensional representation of the retinal portion to define the geometrical measurement to be taken of the retina on the two dimensional representation (38), using the geometrical remapping to convert the or each coordinate of the two dimensional representation of the retinal portion to an equivalent coordinate of the three dimensional representation of the retinal portion (40), and using the or each equivalent coordinate of the three dimensional representation of the retinal portion to determine the geometrical measurement of the retina of the eye (42).
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: July 23, 2019
    Assignee: OPTOS PLC
    Inventors: Jano Van Hemert, Michael Verhoek
  • Patent number: 10285582
    Abstract: An imaging device for imaging an eye includes an eyepiece, an illumination system, an imaging system, and a controller. The illumination system includes a light source that emits illumination light along an illumination path through the eyepiece to the eye to produce a retinal diffuse reflection and a corneal specular reflection. The imaging system includes a first camera that captures a retinal image based on the retinal diffuse reflection and a first set of optical elements, a second camera that captures a corneal specular reflection image based on the corneal specular reflection and a second set of optical elements. The first camera captures at least some residual corneal specular reflection in the retinal image. The controller subtracts the residual corneal specular reflection from the retinal image based on the corneal specular reflection image.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: May 14, 2019
    Assignee: Verily Life Sciences LLC
    Inventors: Sam Kavusi, Charles M. Santori, Seung Ah Lee, Scott Ettinger
  • Patent number: 10219687
    Abstract: Disclosed herein are methods and apparatus for making a determination about an eye in ambient lighting conditions comprising detecting ambient light reflected out of an eye of a subject from a retina of the eye of the subject and making a determination about the eye of the subject based upon the reflected ambient light.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 5, 2019
    Assignee: Ohio State Innovation Foundation
    Inventor: Melissa D. Bailey
  • Patent number: 10098783
    Abstract: Embodiments of the present invention provide methods and systems for determining an ablation treatment for an eye of a patient. The systems and method may involve determining an ellipsoid shape corresponding to an anterior corneal surface of the patient's eye. The ellipsoid shape may include an anterior portion, a major axis, and an apex, where the major axis intersects the anterior portion at the apex. The systems and method may also involve determining a tilted orientation of the eye, such as when the patient fixates on a target during a laser ablation procedure. The systems and method may further involve determining the ablation treatment based on the ellipsoid shape and/or the tilted orientation.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: October 16, 2018
    Assignee: AMO Development, LLC
    Inventors: Dimitri Chernyak, Anatoly Fabrikant
  • Patent number: 10095927
    Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining a first image of an eye including a view of the white of the eye. The method may further include determining metrics for the first image, including a first metric for reflecting an extent of one or more connected structures in the first image that represents a morphology of eye vasculature and a second metric for comparing the extent of eye vasculature detected across different color components in the first image. A quality score may be determined based on the metrics for the first image. The first image may be rejected or accepted based on the quality score.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: October 9, 2018
    Assignee: Eye Verify LLC
    Inventors: Reza R. Derakhshani, Vikas Gottemukkula
  • Patent number: 10070788
    Abstract: A parallel detecting optical coherence tomography (OCT) setup and method, in which the light paths of the illumination of the sample and of the detection of the backscattered light do not use the same apertures. The separation of illumination and detection apertures filters these disturbing reflexes from the backscattered light of the sample and significantly increases image quality.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: September 11, 2018
    Assignee: THORLABS GMBH
    Inventors: Dierck Hillmann, Gereon Hüttmann, Gesa Lilith Franke, Helge Sudkamp, Laura Hinkel, Peter Koch, Jörn Wollenzin
  • Patent number: 10048750
    Abstract: This application discloses a content projection system and a content projection method. The system comprises: a gaze point detection apparatus, configured to detect a gaze point location of an eye; an image generating apparatus, configured to generate a virtual image according to visual information and the gaze point location; and a virtual image projection apparatus, configured to project the virtual image to the fundus according to the gaze point location. According to the system and method in the embodiments of the present application, the gaze point location of a user is detected in real time, an imaging parameter corresponding to the visual information is obtained with respect to the gaze point location, and therefore, the virtual image is generated and projected to the fundus, so that virtual graphic information is better fused with reality information, and the user obtains a better sense of immersion.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: August 14, 2018
    Assignee: BEIJING ZHIGU RUI TUO TECH CO., LTD
    Inventors: Lin Du, Hongjiang Zhang
  • Patent number: 10034796
    Abstract: An ophthalmic treatment system of an embodiment is used for performing therapy on target tissue in a patient's eye. The ophthalmic treatment system comprises, a light source, a delivery system, an obtaining means, a setting means and control electronics. The light source is configured to produce treatment light. The delivery system is configured to deliver the treatment light to the patient's eye. The obtaining means is configured to obtain information acquired by capturing the patient's eye. The setting means is used for setting a position in the patient's eye by using the information obtained by the obtaining means. The control electronics is configured to control the delivery system based on the position set by the setting means.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: July 31, 2018
    Assignee: TOPCON MEDICAL LASER SYSTEMS INC.
    Inventor: Steven Thomas Charles
  • Patent number: 9936867
    Abstract: Described herein is a light directing assembly for use in an object analysis system. The light directing assembly includes a plurality of optical relay assemblies. Each optical relay assembly includes at least one optical element configured to relay an interrogation beam from a light transmission system to an object and relay a return beam from the object to the light transmission system, the return beam being generated by reflection or back scattering of the interrogation beam by the object. Each optical relay assembly defines an interrogation angle at which the interrogation beam relayed by the optical relay assembly reaches the object, and an optical path length being the distance from the light transmission system to the object traveled by an interrogation beam via the optical relay assembly.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: April 10, 2018
    Assignee: Brien Holden Vision Institute
    Inventors: Klaus Ehrmann, Darrin Mark Falk, Cathleen Fedtke
  • Patent number: 9916690
    Abstract: This invention solves the problem that objects in the field of view of reading glasses using multifocal lenses for correcting ocular refractive errors such as presbyopia appear distorted. This image display device is provided with the following: a distance computation unit that computes the distance to a subject in a field-of-view image; a visual-acuity-information acquisition unit that stores visual-acuity information for the user in advance; a corrected-image generation unit that generates and outputs a corrected image on the basis of the field-of-view image and an eye image generated from the field-of-view image, the distance information, and the visual-acuity information; and a display unit that displays the corrected image by superimposing same onto the user's field of view. Since the corrected image is superimposed without the use of lenses, lenses being the cause of the abovementioned distortion, the user can see close objects clearly.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: March 13, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kunio Nobori, Ayako Maruyama, Yumiko Kato, Tsuyoshi Inoue
  • Patent number: 9873378
    Abstract: A display system has a control apparatus and a display unit that can be worn on the head of a vehicle user. The control apparatus has an input interface for accepting a piece of traffic-relevant information, a transducer for producing an image signal for the display unit taking account of the piece of traffic-relevant information and an output interface for outputting an image signal. The display system is prepared to display the piece of traffic-relevant information by the display unit in a marginal region of a field of vision of the vehicle user. A vehicle has the display system.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: January 23, 2018
    Assignee: AUDI AG
    Inventor: Marcus Kuehne
  • Patent number: 9727946
    Abstract: A method for customizing an electronic image display device having at least one display parameter of variable value includes: a) linking the electronic image display device to a user database, determining and recording at least one value of an evaluation parameter for the visual and oculomotor profile of a user; b) linking the electronic image display device to a display database and making a digital record including a plurality of values for the display parameter which are associated with an electronic image display device; c) selecting an optimum value for the display parameter from among the plurality of display parameters values in the digital record that are associated with the electronic image display device in the display database according to the visual acuity measurement associated with this user in the user database; d) automatically applying the optimum value for this image display parameter to the electronic image display device.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: August 8, 2017
    Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventor: Anne-Catherine Scherlen
  • Patent number: 9706917
    Abstract: An eye examination template for measuring an optic disc can include an x-axis measurement line, a y-axis measurement line, and an optic disc oval. In one aspect, the x-axis measurement line can include a plurality of x-axis measurement marks. In another aspect, the y-axis measurement line can include a plurality of y-axis measurement marks. In yet another aspect, the y-axis measurement line can intersect the x-axis measurement line at a square angle intersection. In a further aspect, the optic disc oval can be centered on the intersection of the y-axis measurement line with the x-axis measurement line. In one aspect, the optic disc oval can correspond with an average optic disc size of a first demographic of a population.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: July 18, 2017
    Inventor: Don C. Bagwell, Sr.
  • Patent number: 9700204
    Abstract: An ophthalmological device emits light from a measurement optical system to an eye to be examined and calculates a dimension along the eye axis of a target portion of the eye from interfering light composed of reflected light from the eye and reference light. The measurement optical system includes incidence position changing member that changes the incidence position of light emitted to the eye, and driving unit that drives the incidence position changing member so as to scan at the incidence position of emitted light in a predetermined region of the eye. The predetermined region is a region where a straight line passes through when the straight line radially extended from the cornea apex of the eye is circumferentially moved over a predetermined angle range in the case of the eye is viewed from the front.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: July 11, 2017
    Assignee: Tomey Corporation
    Inventors: Chihiro Kato, Yuji Nozawa
  • Patent number: 9696134
    Abstract: A system (10) for measuring a physical characteristic of an object (11) using dual path, two-dimensional Optical Coherence Tomography (OCT) includes an extended broadband light source (13) producing an incident light beam (14) and an interferometer (15) having a beam splitter (16) that splits the incident beam into first and second component (17, 18) beams and directs the second component beam (18) on to a moveable mirror (19) for creating an optical path difference between the first component beam (17) and a reflection (20) of the second component beam. A focusing lens (21) having a focal plane (22) focuses the first component beam and the reflection of the second component beam to form a fringe pattern (23) on the focal plane, and a configurable imaging system (25) images the fringe pattern on to a plane (12) of the object to allow two-dimensional measurement of the object without spatial scanning.
    Type: Grant
    Filed: July 28, 2013
    Date of Patent: July 4, 2017
    Assignee: ADOM, ADVANCED OPTICAL TECHNOLOGIES LTD.
    Inventors: Yoel Arieli, Yosef Weitzman
  • Patent number: 9665771
    Abstract: The present invention refers in general to the measurement of aberrations of the optical system (E) of a living being, in particular human. More specifically, the invention refers to methods and systems for reconstructing a wavefront (W(z,p)) and/or for constructing a refracting error map.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: May 30, 2017
    Assignee: COSTRUZIONI STRUMENTI OFTALMICI C.S.O. S.R.L.
    Inventors: Franco Giannozzi, Francesco Versaci, Gabriele Vestri
  • Patent number: 9615739
    Abstract: A corneal topographer includes: a flat panel display configured to display a light pattern and to project the light pattern onto a cornea of an eye disposed on a first side of the flat panel display; an optical system disposed on a second side of the flat panel display, the optical system being configured to receive and process reflected light from the cornea that passes through the flat panel display from the cornea to the optical system; a camera configured to receive the processed reflected light from the optical system and to capture therefrom a reflected light pattern from the cornea produced in response to the projected light pattern; and one or more processors configured to execute an algorithm to compare the projected light pattern to the reflected light pattern from the cornea, and to produce a topographic map of the cornea based on a result of the comparison.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: April 11, 2017
    Assignee: AMO WAVEFRONT SCIENCES, LLC
    Inventors: Stephen W. Farrer, W. Shea Powers, Daniel R. Neal, Larry B. Voss
  • Patent number: 9603516
    Abstract: A system and method for determining an objective quality metric for image data collected by a wavefront aberrometer. The method may include quantifying a plurality of characteristics of the image data and calculating the objective quality metric based on the quantified characteristics of the image data. The objective quality metric can be a weighted sum of the quantified characteristics of the image data. The weightings for the weighted sum can be determined based on subjective quality metrics assigned to a set of training image data by a human expert.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: March 28, 2017
    Assignee: WaveTec Vision Systems, Inc.
    Inventors: Edwin Jay Sarver, Thomas D. Padrick, Max Hall
  • Patent number: 9597253
    Abstract: A method for the treatment of amblyopia comprising the steps of diagnosis and approval of a patient by a medical practitioner, providing access to an eye-training platform for the approved patient and instructions to the approved patient on using the eye-training platform, preparation of a therapy protocol by the medical practitioner, use of the eye-training platform according to the therapy protocol, recordal of patient results, intermediate examination of the patient and review of patient results, further use of the eye-training platform according to a modified therapy protocol, recordal of further user results, and examination of visual acuity and review of user results by the medical practitioner.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: March 21, 2017
    Assignee: Caterna Vision GmbH
    Inventors: Sascha Seewald, Nicolaus Widera
  • Patent number: 9521951
    Abstract: Device and method for determining an objective eye refraction parameter of a subject depending on a plurality of gaze directions, the device includes elements for ophthalmologically measuring an objective eye refraction parameter of a subject, and elements of visual stimulation of variable proximity and intended to stimulate the visual accommodation of the subject for first and second proximity values. The device includes opto-mechanical alignment elements for carrying out a first optical alignment of the optical axis of measurement on an eye axis in a first measuring position corresponding to a first angle of lowered viewing associated with a first proximity value to take a first measurement of an objective eye refraction parameter of the subject, and a second alignment of the optical axis of measurement on the eye axis in another measuring position corresponding to another angle of lowered viewing associated with another proximity value to take a second measurement.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: December 20, 2016
    Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventors: Konogan Baranton, Fabien Divo, Guilhem Escalier, Martha Hernandez-Castaneda, Gildas Marin, Pedro Ourives, Benjamin Rousseau
  • Patent number: 9510748
    Abstract: Embodiments of this invention relate to the generation of wavefronts for measurements, diagnostics, and treatment planning for ophthalmic applications. In some embodiments, a wavefront generator generates light having a uniform wavefront, which is focusable on the retina of an emmetropic eye by the normal function of the emmetropic eye. In some embodiments, the wavefront generator can generate light having a custom wavefront which is not focusable on the retina of the emmetropic eye. In some embodiments, the wavefront generator can receive information relating to an optical aberration of the eye, generate a custom wavefront, and project light having this custom wavefront, which in combination with the optical aberration of the eye is focusable on the retina.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: December 6, 2016
    Assignee: AMO Groningen B.V.
    Inventor: Theophilus Bogaert
  • Patent number: 9504378
    Abstract: The present disclosure relates generally to a system and method for determining the refractive error of a person, more particularly determining the person's refractive error by using a computerized screen, and providing the person with a prescription for the person's preferred type of corrective lenses. The system and method do not require the trip or expense of a doctor visit, and are optimized for convenience and cost effectiveness. In a general embodiment, the present disclosure provides a method for determining a corrective lenses prescription for a person. The method includes, separately, for each eye of the person, determining the sphere prescription for the person via a computerized screen and without the use of a refractor lens assembly. Determining the sphere prescription is done, in part, by displaying a sphere figure to the person via the computerized screen and enabling the person to select at least one input, where the input corresponds to a sphere measurement.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: November 29, 2016
    Assignee: Opternative, Inc.
    Inventors: Steven P. Lee, Aaron Dallek
  • Patent number: 9498116
    Abstract: An ophthalmologic apparatus of an embodiment includes an optical system, a rotational movement amount calculator, a registration unit, a parallel movement amount calculator, a driver, and a controller. The optical system is used to capture a moving image of a subject's eye. The rotational movement amount calculator calculates a rotational movement amount between a first image and a second image included in the moving image. The registration unit performs registration between the first image and the second image in the rotation direction based on the rotational movement amount. The parallel movement amount calculator performs a phase only correlation process on the first image and the second image registered by the registration unit to calculate a parallel movement amount between the first image and the second image. The driver moves the optical system. The controller controls the driver based on the parallel movement amount.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: November 22, 2016
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Masahiro Shibutani, Hiroyuki Aoki
  • Patent number: 9474442
    Abstract: The present invention relates to an apparatus for inspecting the fundus of the eye, comprising: —lighting means configured to project a light beam for illuminating the retina of one eye; and —an optical path comprising one or more lenses configured to optically conjugate the retina with a receiving surface of acquisition means configured to acquire one or more images of the retina; and —a beam splitter device configured to divert a part of the light, which is reflected by the retina and directed towards said acquisition means, towards first photosensitive elements; and —a control unit operatively associated with said first photosensitive elements, said acquisition means and said lighting means, said control unit deactivating said lighting means when the light energy received from said first photosensitive elements overcomes a predefined threshold value; and —first LED devices configured to project light targets onto the retina, which the patient must stare to keep the eye still during the examination.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: October 25, 2016
    Assignee: CENTERVUE S.P.A.
    Inventors: Federico Manzan, Andrei Plaian, Marco D'Aguanno, Paola Griggio
  • Patent number: 9432593
    Abstract: Disclosed are a target object information acquisition method and an electronic device. The target object information acquisition method comprises a first infrared transmitter transmitting scattered light to a target area comprising at least one object; a photoreceptor receiving first reflected light output after at least one object reflects the scattered light in a first time period, and generating a depth image corresponding to the target area, acquiring the target image information about a target object; a second infrared transmitter transmitting scattered light to the target area; the photoreceptor receiving second reflected light output after at least one object reflects the scattered light in a second time period, and generating a feature image corresponding to the target area; and acquiring feature information. By means of the time division, the present invention solves the technical problem of a low acquisition rate for target object information in the prior art.
    Type: Grant
    Filed: February 8, 2014
    Date of Patent: August 30, 2016
    Assignees: BEIJING LENOVO SOFTWARE LTD., LENOVO (BEIJING) CO., LTD.
    Inventors: Guang Yang, Jian Yao
  • Patent number: 9351638
    Abstract: A hand-held ophthalmological device includes: a main unit having an ophthalmoscopic optical system configured to project ophthalmoscopic light to an examinee's eye and receive reflection light therefrom to examine or measure an examinee's eye; a detector placed in the main unit and configured to detect a relative deviation between an optical axis of the ophthalmoscopic optical system and the examinee's eye; a deviation compensating optical system placed as a part of the ophthalmoscopic optical system and configured to compensate the deviation; and a drive part configured to drive the deviation compensating optical system based on output from the detector.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: May 31, 2016
    Assignee: NIDEK CO., LTD.
    Inventor: Masaaki Hanebuchi
  • Patent number: 9326676
    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: October 13, 2010
    Date of Patent: May 3, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukio Sakagawa
  • Patent number: 9259147
    Abstract: A binocular multiplexing device for a single-channel ophthalmological instrument for objective measurement of at least one vision parameter of a subject, the ophthalmological instrument including elements for generating a single light beam, elements for collecting a measurement beam by reflecting and/or refracting the light beam against the subject's eye and a sensor associated with the single measurement channel.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: February 16, 2016
    Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventors: Konogan Baranton, Guilhem Escalier, Benjamin Rousseau
  • Patent number: 9254079
    Abstract: A system includes a first element configured to receive a plurality of color components that are spatially separated, wherein each of the plurality of color components comprises light of a respective wavelength, and to focus the plurality of spatially separated color components onto a first surface of a second element. The system also includes a second element having a first surface and a second surface, wherein the second element is configured to receive the plurality of color components via the first surface, to transmit to the second surface uniform light comprising the plurality of color components in a blended state, and to emit the uniform light via the second surface. The system also includes a slit lamp configured to receive the uniform light.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: February 9, 2016
    Assignee: Topcon Medical Laser Systems, Inc.
    Inventor: Sheldon Hutchison
  • Patent number: 9237846
    Abstract: A photorefraction ocular screening device for assessing vision and corresponding disorders associated with the human ocular system is provided. More specifically, the present invention provides for a photorefraction ocular screening device employing advanced methods of pupil detection and refractive error analysis. The photorefraction ocular screening device is comprised of an LED arrangement configured with a plurality of irradiation sources serving as visual stimuli, wherein the visual stimuli may be presented in varying illumination patterns to the pupils of an examinee for expanding the range of ocular responses that can be used to determine refractive error.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: January 19, 2016
    Assignee: Welch Allyn, Inc.
    Inventors: Richard Allen Mowrey, Martin Edson Rivers, Rejean Joseph Yvon Bruno Munger
  • Patent number: 9237847
    Abstract: An ophthalmoscope device includes a support structure, an image capture device, and a display device. The support structure is configured to be worn by a subject. The image capture device is configured to capture images of the eye fundus of the subject. The display device is configured to overlay images in the field of view of the subject. The overlaid images are used to align the pupil/fovea orientation axis with the optical axis of the image capture device.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: January 19, 2016
    Assignee: Welch Allyn, Inc.
    Inventors: Ynjiun Paul Wang, Ervin Goldfain, Eric G. Petersen
  • Patent number: 9226657
    Abstract: The determination of objective refraction data for an eye of a spectacle wearer, wherein based on measured data for the eye of the spectacle wearer, which determine at least one first set of Zernike coefficients of a wave front aberration for a long accommodation and a second set of Zernike coefficients of a wave front aberration for a short accommodation of the eye, objective refraction data for sphere (SphNcorr), cylinder (CylNcorr) and axis position (AxisNcorr) of the eye for close viewing is determined such that the objective refraction data satisfies equations Sph N corr = M N corr + ( J N , 0 corr ) 2 + ( J N , 45 corr ) 2 , ? Cyl N corr = - 2 ? ( J N , 0 corr ) 2 + ( J N , 45 corr ) 2 ? ? and Axis N corr = 1 2 ? arctan ? ( - J N , 0 corr , - J N , 45 corr ) + ? 2 for a corrected power vector PNcorr for near viewing, wherein said corrected power vector PNcorr corresponds, based on a difference
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: January 5, 2016
    Assignee: Rodenstock GmbH
    Inventors: Wolfgang Becken, Helmut Altheimer, Gregor Esser, Andrea Welk, Matthias Nähring, Stephan Trumm
  • Patent number: 9220404
    Abstract: A method and apparatus for modeling a lens of an eye, comprising: measuring the anterior shape of the eye's cornea; determining direct optical measurements of at least one parameter of the cornea and at least one parameter of the lens; determining the refractive index of the cornea; correcting the optical measurements to account for the effect of the refractive index of the cornea on the direct optical measurements; measuring the aberration of the eye; calculating the refractive index of the lens by combining the corrected measurements and the measured aberration; and further correcting the optical measurements of the lens to account the effect of the refractive index of the lens on the direct optical measurements.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: December 29, 2015
    Assignee: Novartis AG
    Inventor: Eugene Ng
  • Patent number: 9149181
    Abstract: A tomographic imaging apparatus includes: a light source; an optical splitter unit for splitting light from the light source into reference light and measuring light; a reference optical system including an adjustment unit for adjusting an optical path length of the reference light; a spectral unit for spectrally splitting combined light of the reference light and the return light obtained by irradiating an object to be inspected with the measuring light so as to acquire an interfering signal; a detection unit for detecting an optical path length when a tomographic image of the object is photographed; a storage unit for recording data about a refractive index of a refracting element of the object; and a calculation unit for calculating image data from the interfering signal acquired by the spectral unit based on an actual size using data about the optical path length and the refractive index.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: October 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Matsumoto, Nobuhito Suehira, Nobuhiro Tomatsu
  • Patent number: 9144380
    Abstract: An adaptive optical apparatus comprising: a shielding unit configured to shield diffracted light that is generated at an aberration correction unit that is irradiated with returning light, wherein the returning light returns from an object to be examined that is irradiated with light; a detection unit configured to detect an aberration of the returning light through an aperture of the shielding unit; and a control unit configured to control the aberration correction unit based on a detection result of the detection unit.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: September 29, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kenichi Saito
  • Patent number: 9060693
    Abstract: A visual function testing device includes: a visual target image presentation unit that presents a visual target image; a visual target image rendering unit that renders the visual target image to be presented on the visual target image presentation unit; a visual function test item selection unit that selects a visual function test item; a visual target image generation unit that generates a visual target image corresponding to the test item selected by the visual function test item selection unit; a viewpoint distance input unit that inputs a distance between the visual target image presentation unit and a viewpoint of an observer; and a visual angle input unit that inputs an angle to be made by the visual target image and the viewpoint of the observer. Based on the viewpoint distance and the visual angle, a display size and display position of a visual target image are calculated.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: June 23, 2015
    Assignee: PANASONIC CORPORATION
    Inventor: Ryo Kawamura
  • Patent number: 9055894
    Abstract: An eye refractive power measuring apparatus includes a light projecting optical system, a light receiving optical system, a focusing unit, a calibration optical system, a focus control unit, and an arithmetic unit. The arithmetic unit, based on a relation of a control signal obtained when a calibration beam is projected and a calibration value that is an output of a light receiving unit, and a correlation of a calibration value obtained in advance and eye refractive power, calculates a correlation of the control signal and the eye refractive power, and, based on a control signal obtained when measuring beam is projected, a measured value that is an output of the light receiving unit, and the correlation, calculates the eye refractive power.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: June 16, 2015
    Assignee: TOMEY CORPORATION
    Inventor: Keiichiro Okamoto
  • Patent number: 9039179
    Abstract: Methods and systems for determining a physiological parameter of a subject through interrogation of an eye of the subject with an optical signal are described. Interrogation is performed unobtrusively. The physiological parameter is determined from a signal sensed from the eye of a subject when the eye of the subject is properly aligned with regard to an interrogation signal source and/or response signal sensor.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: May 26, 2015
    Assignee: Elwha LLC
    Inventors: Allen L. Brown, Jr., Douglas C. Burger, Eric Horvitz, Roderick A. Hyde, Edward K. Y. Jung, Eric C. Leuthardt, Jordin T. Kare, Chris Demetrios Karkanias, John L. Manferdelli, Craig J. Mundie, Nathan P. Myhrvold, Barney Pell, Clarence T. Tegreene, Willard H. Wattenburg, Charles Whitmer, Lowell L. Wood, Jr., Richard N. Zare
  • Patent number: 9039180
    Abstract: Methods and system for determining a physiological parameter of a subject through interrogation of an eye of the subject with an optical signal are described. Interrogation is performed unobtrusively. The gaze direction of the eye of the subject is determined and an interrogation signal source and/or response signal sensor are moved into alignment with the eye using an actuator to facilitate detection of the signal from the eye of the subject.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: May 26, 2015
    Assignee: Elwah LLC
    Inventors: Allen L. Brown, Jr., Douglas C. Burger, Eric Horvitz, Roderick A. Hyde, Edward K. Y. Jung, Eric C. Leuthardt, Jordin T. Kare, Chris Demetrios Karkanias, John L. Manferdelli, Craig J. Mundie, Nathan P. Myhrvold, Barney Pell, Clarence T. Tegreene, Willard H. Wattenburg, Charles Whitmer, Lowell L. Wood, Jr., Richard N. Zare
  • Patent number: 9033505
    Abstract: A method of tracking a position of an eye is provided. The method of tracking a position of an eye includes converting an obtained image into a binary number image, classifying the corner of the eye, maximum and minimum values of a pupil of the eye, and extracting a feature point from the binary number image on which the binarization step is completed, calculating a distance and inclination between the corner and the pupil of the eye using the feature point extracted through the feature point extraction step, and determining a gaze direction of the eye based on the distance and inclination calculated through the distance and inclination calculation step.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: May 19, 2015
    Assignee: Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Sung Min Kim, Sang Hoon Hong, Chan Beom Jeong, Jeon Pil Han, Kwon Hee Lee
  • Publication number: 20150131054
    Abstract: A process and an apparatus are proposed for determining optical aberrations of an eye with its optical system including the cornea and the lens. The process includes the reconstructing of wavefront aberrations of the eye as a deviation of the wavefront, determined by the optical system of the eye with a process of aberrometry, with respect to an ideal planar wavefront generated by an aberration-free eye model. A measured ocular length is employed for the aberration-free eye model.
    Type: Application
    Filed: July 10, 2012
    Publication date: May 14, 2015
    Applicant: Wavelight GMBH
    Inventors: Christian Wuellner, Christof Donitzky, Maik Kaemmerer
  • Patent number: 9010935
    Abstract: A method for noninvasive analysis of a retina includes exposing the retina to one or more first sets of at least three illumination light signals. The at least three illumination light signals each have a different wavelength. The method also includes optically collecting a reflected light signal for each of the at least three illumination light signals of the one or more first sets. Each of the reflected light signals is a portion of the respective illumination light signal reflected by the retina. The method further includes detecting the reflected light signals of the one or more first sets as a function of intensity. The method still further includes determining a first opsin density using the detected intensity of each of the reflected light signals of the one or more first sets.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: April 21, 2015
    Assignee: California Institute of Technology
    Inventors: Xiquan Cui, Scott E. Fraser
  • Patent number: 9004689
    Abstract: A method of determining a corneal thickness and an apparatus for determining said is provided. The method comprises the following the steps: —illuminating a cornea by a plurality of stimulator point light sources, capturing an image of the cornea comprising reflected images of the stimulator point light sources, obtaining a model representing an anterior surface of the cornea, —constructing a second model representing a posterior surface of the cornea from the image by ray-tracing the reflected images of the stimulator point light sources towards the model representing the anterior surface of the cornea, determining the corneal thickness from the model representing the anterior surface and the second model representing the posterior surface.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: April 14, 2015
    Assignee: Vereniging Vu-Windesheim
    Inventors: Victor Arni de Paz Sicam, Gerrit Ludolph van der Heijde, Michiel Herman Mensink
  • Patent number: 9004684
    Abstract: A fundus camera includes a focus target projection unit including a focus target located at a position conjugate with a fundus of a subject's eye, a split optical element configured to split a light flux passing through the focus target, and a focus target illumination light source configured to illuminate the focus target, a fundus photographing optical system including a focusing lens, a focus link mechanism configured to interlockingly move the focus target projection unit and the focusing lens in a direction of an optical axis, at least two lenses located behind a plane optically conjugate with the imaging plane of the fundus photographing optical system and outside an optical axis of the fundus photographing optical system, image sensors respectively located behind the two lenses, and a phase difference detection unit configured to detect a phase difference between the focus target images based on signals output from the image sensors.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: April 14, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoyuki Iwanaga, Nobuyoshi Kishida, Hideyuki Ohban, Shinya Tanaka
  • Patent number: 9004686
    Abstract: An imaging apparatus includes a measuring light focusing unit configured to focus measuring light for measuring aberration of an object on the object, an aberration correction unit configured to change a state based on the aberration measured with the measuring light, an imaging light focusing unit configured to focus imaging light for capturing an image of the object on the object, an imaging unit configured to capture an image of the object with the imaging light having passed through the aberration correction unit and the imaging light focusing unit, and a control unit configured to interlockingly control states of the measuring light focusing unit and the imaging light focusing unit.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: April 14, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Futoshi Hirose
  • Publication number: 20150085254
    Abstract: Methods and apparatuses for a micro-display based slit lamp illumination system are provided. A first optical element is configured to generate a micro-display image including an illuminated area. A second optical element is configured to receive the micro-display image, and focus the micro-display image upon an eye to be examined, wherein light is reflected from the eye as a result of the illuminated area.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 26, 2015
    Inventors: Chris Sramek, Greg Halstead
  • Patent number: 8985772
    Abstract: An ophthalmologic photographing apparatus includes: an optical coherence system for obtaining a tomographic image of an examinee's eye, having an optical scanner for scanning the eye with measurement light and a detector for detecting an interference signal of the light and reference light; an observing optical system for acquiring a front image of the eye; a scan controller for controlling the optical scanner to scan with the light different transverse positions set on the image, and acquire first interference signals at the positions; a display controller for displaying on a monitor an image created in response to the first interference signal; and an image recapture setting unit for setting a rephotographing transverse position in response to an operation signal from an operating unit for the image on the monitor. The scan controller scans the eye with the light at the rephotographing transverse position, and acquires a second interference signal.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: March 24, 2015
    Assignee: Nidek Co., Ltd.
    Inventor: Yuji Murase