Methods Of Use Patents (Class 351/246)
  • Publication number: 20150055094
    Abstract: A method and apparatus for imaging the choroid is described. A plurality of choroidal images is captured. The plurality of images is aggregated to generate a single aggregated image with good contrast. Prior to any aggregation, the images may be aligned to remove any displacement caused by saccadic motion between one frame and another, and any images degraded by a blink of the patient can be identified and discarded.
    Type: Application
    Filed: October 9, 2014
    Publication date: February 26, 2015
    Inventors: Alan BOATE, Jeremy Lloyd GRIBBEN, David Alexander KAHN
  • Publication number: 20150055087
    Abstract: The vision protection method and system thereof is provided to ensure a viewer to rest his/her eyes after viewing on an electronic device for a certain period, wherein the eyesight protection method includes the steps of detecting one of more working parameters of the viewer in responsive to a preset working threshold in a working mode of the electronic device during the viewer is working on a current work displaying by the electronic device; switching the working mode of the electronic device to a resting mode; and switching the electronic device from the resting mode back to the working mode to resume the display of the current work of the electronic device. Therefore, the viewer is enforced to rest his/her eyes after every certain period.
    Type: Application
    Filed: November 4, 2014
    Publication date: February 26, 2015
    Inventor: Roger Li-Chung Wu
  • Publication number: 20150055095
    Abstract: A system measures macular pigment of a macula of a human eye of a subject. The system comprises a light source having a first light and a second light that modulate at variable frequencies, an input device for receiving an input indicating the frequency at which the user perceives the modulation of the first light and a second light, a display device, at least one processor, and one or more memory devices. The one or more memory devices storing instructions that, when executed by at least one processor, cause the system to (i) display, on the display device, test data corresponding to the user's inputs from the input device, (ii) determine whether the test data are valid or invalid through a curve-fitting algorithm, (iii) automatically indicate that the test data are valid or invalid.
    Type: Application
    Filed: October 10, 2014
    Publication date: February 26, 2015
    Inventors: Dennis L. Gierhart, Christopher Gerald Barber, Malcolm Stuart Grover
  • Patent number: 8960910
    Abstract: Light from an exit pupil of an illumination unit is directed to a beam splitter which directs the light to an objective. The retina is illuminated, if a real image of the exit pupil of the illumination unit and a real image of an entrance pupil of a camera unit are formable. The objective forms a real intermediate image of the retina between the objective and the camera unit. The beam splitter directs the light from the retina to the camera unit, while causing the path of the illumination and the path of the imaging to deviate for non-overlapping images of the exit pupil and the entrance pupil in the crystalline lens. A relay lens system forms a real image of the intermediate image on a detecting component with the light reflected from the retina for transforming the image into an electric form to be shown on a screen.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: February 24, 2015
    Assignee: Optomed Oy
    Inventors: Ilkka Antero Alasaarela, Jussi Soukkamaki, Ilkka P. Jolma
  • Patent number: 8960904
    Abstract: In order to change a size of an imaging area of a tomographic image of an object to be inspected easily, provided is an optical tomographic apparatus for acquiring a tomographic image of an object to be inspected, the optical tomographic apparatus including a control unit for controlling a measuring light path length changing unit to change an optical path length of measuring light in a case where the size of the imaging area of the tomographic image is changed, and for controlling a movable unit for moving a focus lens for focusing the measuring light to the object to be inspected along an optical path to move the focus lens in association with the change in the optical path length of the measuring light.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Aoki, Hirofumi Yoshida, Yukio Sakagawa
  • Patent number: 8960908
    Abstract: A fundus imaging apparatus selects a focal position detection method in accordance with whether a diopter correction lens is inserted in an optical path of an imaging optical system that includes an imaging unit; and detects a focal position based on a signal from the imaging unit according to the selected focal position detection method.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yohei Saito, Satoshi Aikawa, Hideyuki Ohban, Yoshitaka Nakano
  • Patent number: 8960907
    Abstract: There is provided an ophthalmic device that includes a plurality of light sources including at least a light source for obtaining a return light of which aberration has been corrected with a correction unit from an eye under examination; and a control unit configured to control measurement lights from the plurality of light sources such that the measurement lights enter the eye under examination in a predetermined order when a photography of a second eye is started after a photography of a first eye has been completed.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsutomu Utagawa
  • Patent number: 8960905
    Abstract: In order to change a size of an imaging area of a tomographic image of an object to be inspected easily, provided is an optical tomographic apparatus for acquiring a tomographic image of an object to be inspected, the optical tomographic apparatus including a control unit for controlling a measuring light path length changing unit to change an optical path length of measuring light in a case where the size of the imaging area of the tomographic image is changed, and for controlling a reference light path length changing unit to change an optical path length of reference light in association with the change in the optical path length of the measuring light.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Aoki, Hirofumi Yoshida, Yukio Sakagawa
  • Patent number: 8960909
    Abstract: A control apparatus includes an irradiation unit configured to irradiate a measurement object with a measuring beam, a restriction unit configured to restrict the measuring beam from being incident on the measurement object and to reflect or scatter the measuring beam, and a polarization control unit configured to control, based on the measuring beam reflected or scattered by the restriction unit, polarization of the measuring beam.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoyuki Makihira, Yoshihiko Iwase, Makoto Sato, Kazuhide Miyata, Hiroyuki Shinbata, Ritsuya Tomita, Daisuke Kibe
  • Publication number: 20150049306
    Abstract: A method for determining at least one behavioural, postural or geometric-morphological characteristic of a person wearing spectacles, the method includes the steps of: a) illuminating the wearer's head using an infrared light source (220, 230, 240), b) acquiring an image of the wearer's head using an infrared image sensor (210); c) in the image, locating reflections from the infrared light surface, reflected by the two lenses of the spectacles; and d) using a computation unit (250) to deduce the required characteristic as a function of the positions of the reflections in the image.
    Type: Application
    Filed: March 8, 2013
    Publication date: February 19, 2015
    Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventors: Ahmed Haddadi, Jean Delzers
  • Patent number: 8955969
    Abstract: A system for performing at least one of quasi-elastic light scattering and fluorescent ligand scanning on a subject's eye includes a light source configured to transmit light toward the subject's eye, a lens configured to focus light sent from the source and received from the subject's eye, a measurement reflector disposed to receive at least a portion of the focused light and configured to reflect a first portion of the received light, a camera configured and disposed to receive the first portion of the received light and configured to provide indicia of an image corresponding to the first portion of the received light, and a processor coupled to the camera and configured to analyze intensities of light in the image to determine a location of a reference point corresponding to an interface of a portion of the eye.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: February 17, 2015
    Assignee: Cognoptix, Inc.
    Inventors: Paul D. Hartung, Vincent Valvo, Dennis J. Nilan
  • Patent number: 8955972
    Abstract: An ophthalmologic apparatus includes an aberration measurement unit configured to measure aberration caused by a subject's eye by using a return beam of a first measuring beam from the subject's eye, a correction unit configured to correct aberration of a return beam of a second measuring beam from the subject's eye caused by the subject's eye based on the aberration measured by the aberration measurement unit, a first acquisition unit configured to obtain a first image of the subject's eye by using the aberration-corrected return beam of the second measuring beam from the subject's eye, and a control unit configured to enter one of the first measuring beam and the second measuring beam into the subject's eye while limiting entry of the other measuring beams into the subject's eye.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: February 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuya Morohashi
  • Patent number: 8955973
    Abstract: Exemplary methods and systems help provide for tracking an eye. An exemplary method may involve: causing the projection of a pattern onto an eye, wherein the pattern comprises at least one line, and receiving data regarding deformation of the at least one line of the pattern. The method further includes correlating the data to iris, sclera, and pupil orientation to determine a position of the eye, and causing an item on a display to move in correlation with the eye position.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: February 17, 2015
    Assignee: Google Inc.
    Inventors: Hayes Solos Raffle, Thad Eugene Starner, Josh Weaver, Edward Allen Keyes
  • Publication number: 20150042955
    Abstract: Improved systems and methods for determining ocular scattering are provided. These systems and methods can be used to quantify ocular scattering before and/or after a wide variety of different ophthalmic diagnostic procedures, and various surgical and non-surgical treatments. One embodiment provides a system and method for determining ocular scattering that uses two light detectors, with one detector configured to detect light over a relatively narrow angular range, and the other detector configured to detect light over a relatively large angular range. The data from the narrow angular range and the large angular range can then be analyzed to determine a measurement of ocular scattering.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 12, 2015
    Inventors: Huawei Zhao, Li Chen
  • Publication number: 20150042957
    Abstract: Systems for performing combined phoropter and refractive measurements to ascertain the aberrations present in the eye of a subject. The systems use a pair of phoropter wheel assemblies, one for each eye, each assembly comprising a number of lens wheels incorporating the series of lenses and wedges required to compensate for a range of refractive vision aberrations. The vision of each eye is corrected by a combination of a subjective phoropter measurement, iteratively performed with an objective wavefront analysis measurement to determine the residual aberrations existing after the initial phoropter correction. The system is able to automatically align the axes of each wavefront analyzer with is corresponding eye, by means of centering the pupil image in the wavefront analyzer camera, and to determine the pupil distance. By changing the focusing point on the wavefront analyzer of the light refleeted from the eye, the corneal profile can be measured.
    Type: Application
    Filed: April 4, 2013
    Publication date: February 12, 2015
    Inventors: Marc Abitbol, Ran Yam, Haggai Herman, Ian Melnick
  • Publication number: 20150042958
    Abstract: An aerial projection display project an image of an object to a remote location for viewing. The display includes a pair of spherical, parabolic, or elliptical reflectors positioned and oriented relative to one another such that, when the object is placed at one or more predetermined locations, an image of such object is transmitted to the first reflector of said pair, reflected by said first reflector to the second reflector, and refocused by the second reflector as an undistorted 3-D image. In a second embodiment, the reflectors are paraboloid reflectors sharing a common axis of revolution. In another embodiment, the reflectors are elliptical reflectors each having a pair of foci. The foci lie along a common axis, and one of said foci is common to both reflectors.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 12, 2015
    Inventor: Kenneth LI
  • Publication number: 20150042954
    Abstract: Techniques are illustrated herein for 1- and 2-photon fluorescence lifetime imaging in the living retina, using adaptive optics to correct aberrations and achieve cellular level resolution. 1-photon fluorescence embodiments may include the use of a confocal pinhole to provide axial sectiontin. 2-photon embodiments allow for inherent axial sectioning without having to block out-of-focus light.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Applicant: University of Rochester
    Inventors: Jennifer Hunter, James Feeks
  • Patent number: 8950863
    Abstract: An image photographing apparatus includes; an acquiring unit configured to acquire an image of an eye to be inspected, a measuring unit configured to measure movement of the eye to be inspected based on the image, a predicting unit configured to predict the movement of the eye to be inspected based on a cycle of the movement of the eye to be inspected which has been measured by the measuring unit, and a control unit configured to control an acquisition position where the acquiring unit acquires the image based on the movement of the eye to be inspected which has been predicted by the predicting unit.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoyuki Makihira
  • Patent number: 8950866
    Abstract: A method for reliably determining the axial length of an eye uses optical coherence tomography (OCT), where the eye is aligned with a fixation mark so that the optical axis of the measuring instrument coincides at least approximately with a visual axis of the eye. The axial length is determined from at least one B-scan taken in an initial AS mode (anterior segment mode) and the axial length is also determined from at least one B-scan taken in a second RS mode (retina segment mode). A resultant reliable axial length of the eye is determined using the axial lengths from the AS and RS modes, where available and where possible, or the process is ended without a resultant axial length.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: February 10, 2015
    Assignee: Carl Zeiss Meditec AG
    Inventors: Martin Volkwardt, Ferid Bajramovic, Ralf Ebersbach
  • Patent number: 8950864
    Abstract: Systems and methods provided utilize gaze-tracking to measure quantitatively and accurately the ability of an athlete or other subject suspected of a concussion to maintain gaze within a figure-eight pattern during a given period of time. The fixation icon is presented at increasing velocities, with multiple staged velocities constituting the preferred embodiment. Utilizing a figure-eight pattern is preferred. Total tracking error time is tabulated during each velocity stage of the test protocol, and total tracking error time occurring during a given velocity stage is compared to a subject's baseline, e.g., a pre-season Individual Bioperformance Level (IBL) for that velocity stage. Systems and methods disclosed may be used to help prevent debilitating neurological damage in our athlete population, as well as having important military applications related to PTSD, and to other mission-critical performance endeavors.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: February 10, 2015
    Assignee: Mednovus, Inc.
    Inventor: R. Kemp Massengill
  • Publication number: 20150036104
    Abstract: A method and apparatus for administering eye tests to identify cone sensitivity loss associated with hereditary and acquired color vision loss which may be used for early detection, progress, treatment, and monitoring of eye conditions, traumatic brain injury, optic neuritis, systemic and neurological diseases including Glaucoma, Retinopathy, Age-Related Macular Degeneration, Multiple Sclerosis, Alzheimer's Disease, and Parkinson's Disease and retinal toxicity. Particularly, the method and apparatus disclosed uses a Cone Contrast Test (CCT) to test individuals for hereditary or acquired color vision loss associated with (a) early signs of potential disease/damage/toxicity in an effort to (i) provide opportunity for treatment, and (ii) prevent permanent eye damage, and (b) monitor progress and treatment of such disease/damage/toxicity.
    Type: Application
    Filed: March 24, 2014
    Publication date: February 5, 2015
    Inventor: Steven B. Nordstrom
  • Publication number: 20150036102
    Abstract: The invention provides an ophthalmic lens comprising one or more oblique prismatic component, wherein the lens slows myopia progression and/or treats or prevents myopia or a disease or condition associated with myopia. The one or more oblique prismatic components may be base-down or base-down and base-in or base up and base-in. The one or more oblique prismatic components may be central and/or in a distance and/or near zone of the ophthalmic lens. The invention also provides an ophthalmic lens comprising a central base-down prism in a distance zone wherein the lens slows myopia progression and/or treats or prevents myopia or a disease or condition associated with myopia. Also provided is an optical device comprising one or more ophthalmic lenses and a method of slowing myopia progression and/or treating or preventing myopia or a disease or condition associated with myopia including using one or more ophthalmic lenses.
    Type: Application
    Filed: February 21, 2013
    Publication date: February 5, 2015
    Applicant: Queensland University of Technology
    Inventors: Atanu Ghosh, Michael John Collins, Scott Andrew Read, Brett Ashley Davis
  • Patent number: 8944600
    Abstract: An eye tracker includes at least one illuminator for illuminating an eye, at least two cameras for imaging the eye and a controller. The configuration of the reference illuminator and cameras is such that, at least one camera is coaxial with a reference illuminator and at least one camera is non-coaxial with a reference illuminator. The controller selects one of the cameras to be active to increase an image quality metric and avoid obscuring objects. The eye tracker is operable in a dual-camera mode to improve accuracy.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: February 3, 2015
    Assignee: Tobii Technology AB
    Inventors: Peter Blixt, Gunnar Troili, Anders Kingback, John Mikael Elvesjö, Mårten Skogö
  • Patent number: 8944596
    Abstract: A hand held ophthalmic examination instrument uses an illumination system that provides amber colored light from a first light source and white light from a second light source to illuminate a target of interest. An imaging system in cooperation with the illumination system captures digital images of the target of interest as illuminated by the light sources.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: February 3, 2015
    Assignee: Welch Allyn, Inc.
    Inventors: Robert J. Wood, Raymond A. Lia, Jon R. Salvati, Robert L. Vivenzio, Ian K. Edwards, Ervin Goldfain
  • Publication number: 20150032090
    Abstract: A laser eye surgery system focuses light along a beam path to a focal point having a location within a lens of the eye. The refractive index of the lens is determined in response to the location. The lens comprises a surface adjacent a second material having a second refractive index. The beam path extends a distance from the surface to the focal point. The index is determined in response to the distances from the surface to the targeted focal point and from the surface to the actual focal point, which corresponds to a location of a peak intensity of an optical interference signal of the focused light within the lens. The determined refractive index is mapped to a region in the lens, and may be used to generate a gradient index profile of the lens to more accurately place laser beam pulses for incisions.
    Type: Application
    Filed: July 10, 2014
    Publication date: January 29, 2015
    Inventor: Javier Gonzalez
  • Publication number: 20150029464
    Abstract: A method for for automatically measuring changes in retinal, retinal pigment epithelial, or choroidal disease includes retrieving a set of images of a fundus and selecting a plurality of images from the set of images. The plurality of images are co-registered and pre-processed such that the quality, contrast, and gain of each of the plurality of images is made similar. Then, a comparison is made between the plurality of images to determine a change in retinal, retinal pigment epithelial, or choroidal disease, wherein the change in retinal, retinal pigment epithelial, or choroidal disease is determined based on various disease metrics. Finally, an indication of the change in retinal, retinal pigment epithelial, or choroidal disease is generated for display to a user on a computing device.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventors: Kanishka T. Jayasundera, Christopher R. Ranella, Daniel L. Albertus, Nathan T. Patel, Victor M. Elner, Matthew K. Johnson-Roberson
  • Publication number: 20150029461
    Abstract: This cycloduction measurement device is provided with a blood vessel position recognition unit and a first angle calculation unit. The blood vessel position recognition unit recognizes the position of a blood vessel in a sclera region in an eye image, and acquires information pertaining to the position of the blood vessel. The first angle calculation unit calculates the angle of cycloduction on the basis of the first information pertaining to the position of a predetermined blood vessel acquired by the blood vessel position recognition unit during actual measurement of cycloduction, and a second information pertaining to the position of the predetermined blood vessel while in a reference state.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 29, 2015
    Inventors: Kiyoshi Hoshino, Hiroyuki Nakagomi
  • Publication number: 20150029462
    Abstract: A system and method for determining a subject's level of fatigue. The method includes measuring microsaccadic eye movement dynamics of the subject, calculating a current microsaccade peak velocity from the measured microsaccadic eye movement dynamics, and comparing the current microsaccade peak velocity to a baseline microsaccade peak velocity. The method further includes determining the level of fatigue based on a difference between the current microsaccade peak velocity and the baseline microsaccade peak velocity.
    Type: Application
    Filed: November 23, 2012
    Publication date: January 29, 2015
    Inventors: Leandro Luigi Distasi, Stephen L. Macknik, Susana Martinez-Conde
  • Patent number: 8939581
    Abstract: An ophthalmologic photographing apparatus includes an optical system, a pedestal, an auxiliary lens configured to be able to be inserted into and retracted from the optical system, a focusing lens, a focusing lens driving unit configured to move the focusing lens along an optical axis, a pedestal position detection unit configured to detect that the pedestal is away from the subject's eye by a predetermined distance, an auxiliary lens insertion detection unit configured to detect that the auxiliary lens is inserted into the optical system, a storage unit configured to store a position of the focusing lens, and a control unit configured to cause the focusing lens driving unit to move the focusing lens to a predetermined position stored in the storage unit based on outputs from the pedestal position detection unit and the auxiliary lens insertion detection unit.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: January 27, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Motoya Takai, Kyoji Sekiguchi, Hajime Nakajima
  • Patent number: 8939583
    Abstract: An ophthalmic apparatus comprising: an acquisition unit configured to acquire a first fundus image of an eye and a second fundus image of the eye; a first generation unit configured to generate, by performing processing of enhancing contrast of a first characteristic region of a part of the first fundus image, an image which corresponds to the first characteristic region; a second generation unit configured to generate, by performing processing of enhancing contrast of a second characteristic region of a part of the second fundus image which corresponds to the first characteristic region, an image which corresponds to the second characteristic region; and a correction unit configured to correct an acquisition position of a tomographic image of the eye based on a positional displacement between the images which respectively correspond to the first and second characteristic regions.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: January 27, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Dawid Borycki, Hiroshi Aoki
  • Patent number: 8939582
    Abstract: During scan capture with an OCT imaging system, the focal plane position can be simultaneously shifted over at least a portion of an image range. As a result, a plurality of image frames respectively corresponding to various focal plane positions is acquired. The image frames can be combined to generate a composite image having suitable resolution throughout the image range, including regions associated with weak-intensity or low-reflectance features. Further, windowed averaging can be performed prior to generation of the composite image so that the composite image incorporates weights given to image data in focus.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: January 27, 2015
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Richard F. Spaide, Charles A. Reisman, Zhenguo Wang, Kinpui Chan
  • Patent number: 8939580
    Abstract: Provided is an ophthalmologic apparatus for detecting an eye movement from movements of a plurality of characteristic points within a fundus image. It is determined whether or not the plurality of characteristic points are included in a new fundus image when a position of a fixation index is changed, based on a relationship between a displacement amount of the fixation index and positions of the characteristic points within a fundus plane. If it is determined that at least one of the plurality of characteristic points is not included in the new fundus image, new characteristic points are extracted from a limited range within a new fundus plane image. Accordingly, the characteristic points can be efficiently reacquired for eye movement detection performed when an imaging target region of an eye to be inspected is changed by the fixation index.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: January 27, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junko Nakajima, Norihiko Utsunomiya
  • Publication number: 20150022778
    Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. A light comprising a first color is projected onto a vertical surface, where the location of the light can be moved on the vertical surface. For each value of (i), an (i)th fixation point is then projected on the vertical surface, where the (i)th fixation point is one of (N) total fixation points and comprises the second color. For each value of (i), a perceived location is recorded upon receiving a signal that the (i)th fixation point is illuminated by the light. Finally, the (N) perceived locations are transformed into an ocular motor function map.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Inventors: Johan T.W. Van Dalen, Dan D. Carda
  • Publication number: 20150022781
    Abstract: The present invention provides a method of measuring the elasticity of crystalline lens and an apparatus for measuring the elasticity of the crystalline lens for measuring stiffness of the crystalline lens 1, wherein the crystalline lens 1 is irradiated with pulse laser light to generate photoelastic waves from the crystalline lens 1, and the photoelastic waves from the crystalline lens 1 are measured.
    Type: Application
    Filed: March 11, 2014
    Publication date: January 22, 2015
    Applicant: RIKEN
    Inventors: Satoshi WADA, Kazuo TSUBOTA, Atsushi SHINJO
  • Publication number: 20150022782
    Abstract: My invention is an automated self-testing method utilizing binary choice, which is applicable to monocular and binocular eye tests and can be administered on computer, cellular phones, and other electronic devices. Binary choice of match or no match, yes or no, present or absence provides simple means of automated testing by stepwise progression through staircase algorisms. Necessary devices have been introduced in order to fully utilize the power of binary choice self testing, such as, (1) printed display overlays for testing fine visual acuity at near, (2) bright illuminator of printed overlays to allow automated potential vision testing, (3) the use of complementary color lenses and color test isopters for binocular perimetry.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 22, 2015
    Inventor: ALBERT JOHN HOFELDT
  • Publication number: 20150015847
    Abstract: An apparatus (100), comprising a transparent capacitive sensor (102); a body (101) configured to support the transparent capacitive sensor in front of an eye (112) of a user (110); and a driver (106) configured to receive signals from the sensor and to determine eye movements based on the received signals, wherein the sensor (102) is configured to detect movement of the eye (112) based on electrostatic effect caused by a bulge of the cornea of the eye (112). The apparatus may be wearable by the user like eyeglasses.
    Type: Application
    Filed: January 26, 2012
    Publication date: January 15, 2015
    Applicant: NOKIA CORPORATION
    Inventors: Janne Bergman, Jari Saukko, Jussi Severi Uusitalo
  • Publication number: 20150015848
    Abstract: A method for estimating an eye/spectacles distance (VG) includes the steps of: a) acquiring at least two images of the wearer (1), in which the head (10) of the wearer exhibits various angular positions; b) determining, for each image acquired, an angle of inclination (?301) of the head of the wearer with respect to the image sensor; c) acquiring at least two simulated values (VG1, VG2, VG3) of the eye/spectacles distance sought; d) calculating, for each image acquired and with each simulated value, a morphological distance (EG1301, EG2301, EG3301) between the eye of the wearer and a median plane of the head of the wearer, having regard to the angle of inclination; and e) selecting, from among the simulated values, the one closest to the eye/spectacles distance of the wearer, as a function of the head/plane distances calculated in step d).
    Type: Application
    Filed: March 8, 2013
    Publication date: January 15, 2015
    Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GÉNÉRALE D'OPTIQUE)
    Inventors: Ahmed Haddadi, Jean Delzers
  • Patent number: 8931905
    Abstract: A method of performing an ophthalmic test on an examinee's eyes utilizes a three-dimensional display screen that includes a right-eye image and a left-eye image to induce ocular responses in the examinee's eyes. The right and left-eye images are varied while detection devices are used to monitor the examinee's eyes ocular responses to the variations. The induced ocular responses of the examinee's eyes are then used to diagnose any ocular, mental or neurological conditions present. The ocular response inducing images are preferably included in a three-dimensional video game such that a players' performance while playing the game will be indicative of any disorders that may be present.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: January 13, 2015
    Inventor: James Waller Lambuth Lewis
  • Patent number: 8931904
    Abstract: A control method of a fundus examination apparatus configured to examine a fundus of an examinee's eye, includes: processing an examination data obtained by one of fundus examination apparatuses, which are a perimeter configured to measure a visual field and an optical coherence tomography device configured to obtain a tomographic image of the fundus, to thereby obtain positional information relating to an abnormal site of the fundus; setting an examination position on the fundus in the other fundus examination apparatus which is the perimeter or the optical coherence tomography device based on the positional information; and examining the abnormal site of the fundus by controlling the other fundus examination apparatus based on the set examination position.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: January 13, 2015
    Assignee: Nidek Co., Ltd.
    Inventors: Hisanari Torii, Toshio Murata, Naoyuki Kondoh
  • Patent number: 8931903
    Abstract: Provided is an ophthalmologic apparatus including: a first control unit which controls a scanning unit for scanning an eye to be inspected with light emitted from a light source; a memory unit which stores control information for causing the first control unit to control the scanning unit to sequentially perform a first scan and a second scan after the first scan; and a second control unit which decreases a light amount irradiating the eye to be inspected after finishing the first scan and before starting the second scan, which are performed based on the control information.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: January 13, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroyuki Inoue
  • Publication number: 20150011983
    Abstract: A method and a system for detecting a movement of a surface on an irradiated sample involves a light source for irradiating the surface with a coherent light beam, a detector for detecting variations caused by the movement in a speckle pattern produced by reflections of the light beam at the surface, selecting a single speckle from the speckle pattern, and detecting the variations at the selected speckle.
    Type: Application
    Filed: January 20, 2012
    Publication date: January 8, 2015
    Applicant: Medizinisches Laserzentrum Luebeck GmbH
    Inventors: Andreas Fritz, Ralf Brinkmann
  • Publication number: 20150009475
    Abstract: Aspects are disclosed for determining refractive error. In an aspect, a line pattern is displayed to a user, and a distance between the line pattern and the user is ascertained. The line pattern includes a first and second line in which an aspect of the line pattern is varied, and where refractive error is quantified based on the distance and a selected variance of the line pattern. In another aspect, the varied aspect of the line is at least one of a width between the first and second line, a thickness of the first or second line, a darkness of the first line or the second line, or a color of the first line or the second line. An input corresponding to a focused line pattern variance selected by the user is then received, and a refractive error is quantified based on the input and an approximate distance between the line pattern and the user.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 8, 2015
    Inventor: Jack CLARK
  • Patent number: 8926097
    Abstract: An imaging control apparatus which controls an imaging unit configured to capture a tomogram of the fundus of a target eye includes an acquisition unit configured to acquire information representing the direction of a fundus movement of the target eye, an analysis unit configured to analyze the direction of the fundus movement based on the information acquired by the acquisition unit, and a control unit configured to control the imaging unit so as to align the direction of imaging of the imaging unit with the direction of the fundus movement based on the analysis result of the analysis unit.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: January 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukio Sakagawa
  • Publication number: 20150002816
    Abstract: The invention relates to a device for examining an eye, particularly a human eye, comprising: an optical unit that is designed to generate a current image of a current intermediate image, wherein the optical unit comprises an objective, an additional lens that is designed to be arranged in front of an eye along an optical axis of the optical unit in order to generate said current intermediate image of a posterior structure of said eye, and wherein said additional lens is designed to be movable relative to said optical unit so as to generate a sharp and particularly reflection-free current image of said posterior structure with help of said optical unit. According to the invention, the device comprises a first actuator means that is designed to move the additional lens and which is controlled depending on the current image. Furthermore, the invention relates to a method for examining an eye.
    Type: Application
    Filed: December 14, 2012
    Publication date: January 1, 2015
    Inventors: Jens Kowal, Tobias Rudolph, Christoph A. Amstutz
  • Publication number: 20150002813
    Abstract: An image processing apparatus includes a generation unit and a display control unit. The generation unit generates a subtraction image using a first region and a second region, the first region being a portion of a first fundus image acquired by performing autofluorescence imaging on a fundus of an eye to be inspected, the second region being a portion of a second fundus image acquired by performing autofluorescence imaging on the fundus of the eye to be inspected at a time different from that of the first fundus image and being at a position corresponding to the first region. The display control unit causes a display unit to display an image generated by superimposing information regarding the subtraction image at a position corresponding to the first and second regions on a fundus image acquired by performing autofluorescence imaging on the fundus.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Yuji Ota, Tomoyuki Iwanaga, Manabu Wada
  • Publication number: 20150002817
    Abstract: Light from an exit pupil of an illumination unit is directed to a beam splitter which directs the light to an objective. The retina is illuminated, if a real image of the exit pupil of the illumination unit and a real image of an entrance pupil of a camera unit are formable in a position ranging from the cornea to the backside of the crystalline lens with the light. The objective forms a real intermediate image of the retina between the objective and the camera unit. The beam splitter directs the light from the retina to the camera unit, while causing the path of the illumination and the path of the imaging to deviate for non-overlapping images of the exit pupil and the entrance pupil in the crystalline lens. A relay lens system forms a real image of the intermediate image on a detecting component with the light reflected from the retina for transforming the image into an electric form to be shown on a screen.
    Type: Application
    Filed: March 20, 2013
    Publication date: January 1, 2015
    Inventors: Ilkka Alasaarela, Jussi Soukkamaki, Ilkka Jolma, Markku Virta
  • Publication number: 20150002811
    Abstract: An image processing apparatus includes a determination unit and a changing unit. The determination unit determines a first region and a second region, the first region being a portion of a first fundus image acquired by performing autofluorescence imaging on a fundus of an eye to be inspected, the second region being a portion of a second fundus image acquired by performing autofluorescence imaging on the fundus at a time different from that of the first fundus image and being at a position corresponding to the first region. The changing unit changes a gradation of at least one of the first and second fundus images on the basis of pixel values of the first and second regions.
    Type: Application
    Filed: June 23, 2014
    Publication date: January 1, 2015
    Inventor: Yuji Ota
  • Publication number: 20150002815
    Abstract: Systems and methods are disclosed for evaluating human eye tracking. One method includes receiving data representing the location of and/or information tracked by an individual's eye or eyes before, during, or after the individual performs a task; identifying a temporal phase or a biomechanical phase of the task performed by the individual; identifying a visual cue in the identified temporal phase or biomechanical phase; and scoring the tracking of the individual's eye or eyes by comparing the data to the visual cue.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 1, 2015
    Inventors: Adam Todd GROSS, Melissa HUNFALVAY
  • Publication number: 20150002814
    Abstract: Disclosed is a microscope system for imaging an object within an eye, wherein the object is a phase object. The microscope system includes imaging optics for generating images of an object plane of the imaging optics in an image plane of the imaging optics by using imaging light. The object plane is optically conjugate to the image plane. The microscope system is configured to store focus shift data representing a focus shift. The focus shift is generated by a different effect on the imaging light generated by phase objects as compared to amplitude objects. The microscope system is configured to image the object depending on the focus shift data.
    Type: Application
    Filed: June 30, 2014
    Publication date: January 1, 2015
    Inventors: Markus SEESSELBERG, Michael WICK, Christoph HAUGER, Holger MATZ, Jennifer-Magdalena MASCH
  • Patent number: 8919955
    Abstract: Disclosed are virtual glasses try-on method and apparatus, and the apparatus includes an image capturing unit for capturing a user's image and a processing device for detecting a face image from the user's image, storing a glasses model, defining a first feature point of a lens of the glasses model and a second feature point at the center of a frame, and obtaining vertical vectors of the first and second feature points to find a third feature point. Two eye images are searched and binarized into a binarized picture that is divided into an eye area and a non-eye area. A center point between first and second extreme values is found, and vertical vectors of the first extreme value and the center point are obtained to find an example point. An affine transformation of the feature points is performed and attached to the face image to form a try-on image.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: December 30, 2014
    Assignee: Ming Chuan University
    Inventors: Chaur-Heh Hsieh, Wan-Yu Huang, Jeng-Sheng Yeh