Having Means To Detect Proper Distance Or Alignment (i.e., Eye To Instrument) Patents (Class 351/208)
  • Patent number: 10918277
    Abstract: The present invention provides an ophthalmic device capable of minimizing the generation of flare at a lower cost and in a shorter time than in the prior arts when photographing in a state where an optical axis of an examination optical system is deviated from a reference position of a subject eye.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: February 16, 2021
    Assignee: TOPCON CORPORATION
    Inventors: Yoki Okuda, Jun Sakai
  • Patent number: 10888220
    Abstract: Provided is an information processing apparatus including: a first acquisition unit configured to acquire a plurality of pieces of tomographic data based on measurement light controlled to scan the same position of a fundus; a second acquisition unit configured to acquire a correction coefficient by performing an arithmetic operation on a first approximate parameter obtained by transforming, in a first dimension, a parameter of the tomographic data to be used for calculating a motion contrast, and a second approximate parameter obtained by transforming the parameter in a second dimension smaller than the first dimension; a correction unit configured to correct a parameter of at least one piece of tomographic data through use of the correction coefficient; and a generation unit configured to generate a motion contrast image through use of the at least one piece of tomographic data corrected by the correction unit.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: January 12, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Riuma Takahashi, Hiroshi Imamura, Hiroki Uchida, Marek Rozanski, Tomasz Dziubak, Tomasz Bajraszewski
  • Patent number: 10813548
    Abstract: A method, system and computer readable medium for determining a strabismus angle of the eyes of an individual by: positioning the individual with his or her eyes in front of an eye tracker device and in front of a screen at a viewing distance; displaying a small image element on the screen; measuring a position and line of sight of the eyes of the individual with the eye tracker device while the individual is focussing on the small image element; forwarding the measured position and line of sight of the eyes from the eye tracker device to a computer system; and, calculating the strabismus angle between the eyes by calculating the difference in line of sight of the left and right eyes of the individual.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: October 27, 2020
    Assignee: Stichting VUmc
    Inventor: Bob Wilhelm van Dijk
  • Patent number: 10791922
    Abstract: An ophthalmological device according to the embodiments comprises an objective lens, a subjective inspection optical system, and an interference optical system. The subjective inspection optical system includes an optical element capable of correcting aberration of a subject's eye and projects a visual target onto the subject's eye via the objective lens and the optical element. The interference optical system splits light from a light source into reference light and measurement light, projects the measurement light onto the subject's eye via the objective lens and the optical element, generates interference light between returning light of the measurement light and the reference light, and detects the generated interference light.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: October 6, 2020
    Assignee: TOPCON CORPORATION
    Inventors: Takefumi Hayashi, Kouta Fujii
  • Patent number: 10779729
    Abstract: An ophthalmic apparatus includes: an imaging optical system that includes a light projecting optical system for projecting light to an ACA region of a subject's eye, and a light receiving optical system including a light receiving element for receiving reflected light from the ACA region; an alignment driver configured to change a positional relationship between the subject's eye and the imaging optical system; an imaging processor configured to generate an ACA image based on a signal output from the light receiving element; and a controller configured to detect a feature point in an ACA of the subject's eye from the ACA image, and that adjust the positional relationship in accordance with a position of the feature point in the ACA image.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: September 22, 2020
    Assignee: NIDEK CO., LTD.
    Inventors: Keita Suzuki, Yoshihiko Sugimoto
  • Patent number: 10765314
    Abstract: A system for improving a patient's vision, comprising means for diagnosing and monitoring a deterioration in macular vision or macular vision loss in the patient's eye, and means for augmenting the use of a preferred retinal location (PRL) and eccentric fixation in case the deterioration in macular vision or macular vision loss was detected. A method for improving a patient's vision, comprising: diagnosing and monitoring a deterioration in macular vision or macular vision loss in the patient's eye; and augmenting the use of a preferred retinal location (PRL) and eccentric fixation in case the deterioration in macular vision or macular vision loss was detected.
    Type: Grant
    Filed: May 28, 2017
    Date of Patent: September 8, 2020
    Assignee: NOVASIGHT LTD.
    Inventors: Ran Yam, Michael Belkin, Dan Oz, Oren Yehezkel
  • Patent number: 10722113
    Abstract: A gaze detection apparatus includes a light source configured to irradiate an eyeball of a subject with detection light, a position detection unit configured to detect positions of pupil centers indicating centers of pupils of right and left respective eyeballs and positions of corneal reflection centers indicating centers of corneal reflexes of the right and left respective eyeballs from an image of the eyeball irradiated with the detection light, a curvature radius calculation unit configured to calculate corneal curvature radii of the right and left respective eyeballs from a position of the light source and the positions of the corneal reflection centers, a gaze detection unit configured to detect gaze directions of the right and left respective eyeballs from the positions of the pupil centers and the corneal curvature radii, a viewpoint detection unit, an output control unit, and a determination unit.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: July 28, 2020
    Assignee: JVC KENWOOD Corporation
    Inventor: Shuji Hakoshima
  • Patent number: 10716472
    Abstract: Examples of devices and method for quantifying opacities in an eye are shown. Examples include analysis of still images or video images. In one example a cross section area of opacities within a visual axis are quantified. Opacities in the vitreous of an eye, such as “floaters” can vary in severity from little or no reduction in vision, to bothersome, to high reduction in visual function. It is desirable to be able to quantify a level of severity of visual obstruction within a patient's eye and proceed with a level of treatment to match the condition.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: July 21, 2020
    Inventor: Edwin Ryan
  • Patent number: 10702148
    Abstract: A component for a mobile computer device, such as a smartphone, can be secured to the housing of the mobile computer device. The component can deflect the light of a built-in light source of the mobile computer device with an optical element and optionally filter the same, or can provide its own light source to improve the option of measuring eccentric photorefraction using the mobile computer device.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: July 7, 2020
    Assignees: Carl Zeiss Vision International GmbH, Carl Zeiss AG
    Inventors: Tobias Breuninger, Frank Schäffel, Siegfried Wahl, Karsten Lindig, Arne Ohlendorf, Jesús-Miguel Cabeza-Guillén
  • Patent number: 10687979
    Abstract: Performance of enhanced visually directed procedures under low ambient lighting conditions. A computer readable medium storing a set of computer instructions for performing an enhanced visually directed procedure under low ambient visible light on a patient's eye. The computer instructions include: acquiring at least one real-time high resolution video signal representing at least one view of the eye in at least one wavelength of light outside of the wavelengths of visible light. The computer instructions include converting the at least one view is converted corresponding to the at least one real-time high resolution video signal at the at least one wavelength of light outside of the wavelengths of visible light into at least one wavelength of visible light. The at least one high resolution photosensor is acquired after light conditions are low enough such that a pupil of the eye does not constrict substantially from its maximum pupillary diameter.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: June 23, 2020
    Assignee: ALCON INC.
    Inventor: Ashok Burton Tripathi
  • Patent number: 10690499
    Abstract: An analysis system for analyzing inclination of column members includes a laser scanner, a server, and an information terminal. The server includes a data acquisition unit configured to acquire three-dimensional point cloud data of the column members generated by the laser scanner, a surface detector configured to detect surfaces of the column members based on the three-dimensional point cloud data, and an inclination analyzer configured to analyze inclination of the column members by calculating inclination of the surfaces detected by the surface detector.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: June 23, 2020
    Assignee: TOPCON CORPORATION
    Inventors: Daisuke Sasaki, Koji Onishi, Masaki Takanashi, Kiyoyasu Takahashi, Shugo Akiyama
  • Patent number: 10657397
    Abstract: An apparatus for determining a concentration of a driver includes: a region-of-interest definition processor configured to define a region-of-interest based on traffic-related information on front image information of a vehicle running; a driver eye-gaze detection processor configured to detect a plurality of eye-gaze points from driver image information of a driver in accordance with an eye-gaze movement of the driver; a driver concentration information calculation processor configured to calculate concentration information of each of the eye-gaze points; an image coordinate system processor configured to convert the region-of-interest to an image coordinate system and convert positions of the eye-gaze points to the image coordinate system; and a concentration determination processor configured to determine a concentration of the driver on the image coordinate system based on the concentration information.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 19, 2020
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Seong Sook Ryu, Jin Kwon Kim, Byoung Joon Lee, Sam Yong Kim
  • Patent number: 10546194
    Abstract: Provided is an information processing apparatus including: a detection unit configured to detect a corneal reflection image corresponding to light from a light source reflected at a cornea from a captured image in which an eye irradiated with the light from the light source is imaged. The detection unit estimates a position of a center of an eyeball on the basis of a plurality of time-series captured images each of which is the captured image according to the above, estimates a position of a center of the cornea on the basis of the estimated position of the center of the eyeball, estimates a position of a candidate for the corneal reflection image on the basis of the estimated position of the center of the cornea, and detects the corneal reflection image from the captured image on the basis of the estimated position of the candidate for the corneal reflection image.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: January 28, 2020
    Assignee: SONY CORPORATION
    Inventor: Shingo Tsurumi
  • Patent number: 10524653
    Abstract: An apparatus for producing a fundus image includes: a processor and a memory; an illumination component including a light source and operatively coupled to the processor; a camera including a lens and operatively coupled to the processor, wherein the memory stores instructions that, when executed by the processor, cause the apparatus to: execute an automated script for capture of the fundus image; and allow for manual capture of the fundus image.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: January 7, 2020
    Assignee: Welch Allyn, Inc.
    Inventors: Richard M. Farchione, Austin Gardner, Scott P. Gucciardi, Allen R. Hart, Eric P. Jensen, Thomas A. Myers, Salvin J. Strods, Ynjiun P. Wang, Charles E. Witkowski, II
  • Patent number: 10499806
    Abstract: An OCT motion contrast data analysis apparatus includes: a processor; and memory storing computer readable instructions, when executed by the processor, causing the OCT motion contrast data analysis apparatus to execute: acquiring OCT motion contrast data of a subject by an optical coherence tomography; and performing an analysis process with respect to the OCT motion contrast data based on an analysis chart set on image data different from the OCT motion contrast data.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: December 10, 2019
    Assignee: NIDEK CO., LTD.
    Inventors: Tetsuya Kano, Ryosuke Shiba, Kazuki Okada
  • Patent number: 10499808
    Abstract: A pupil detection system according to an embodiment includes a vector calculation unit configured to calculate a plurality of candidate vectors each connecting a corneal sphere center and a pupil center by a stereo method based on a first pupil image of a subject which is picked up by a first camera and a second pupil image of the subject which is picked up by a second camera, and a determination unit configured to select, from among the plurality of candidate vectors, a candidate vector satisfying a vector condition in which an angle between the pupil center and a reference line is equal to or less than a predetermined threshold and determine that a pupil is located at a pupil center corresponding to the selected candidate vector.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: December 10, 2019
    Assignee: NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY
    Inventor: Yoshinobu Ebisawa
  • Patent number: 10470654
    Abstract: In a method for determining the visual acuity two spaced outer markings and an orientation marking lying between but not on a straight connecting line are displayed to the user on a display in an individual test as part of a plurality of tests, and the user is to move the orientation marking on the display perpendicularly to the straight connecting line by actuating the device until the user perceives the marking as lying on the straight connecting line. After, the electronic device then registers the effective distance between the orientation marking and the connecting line. At least two tests are carried out in which the outer markings are arranged along the same main axis, and at least the vertical main axis and the horizontal main axis are measured. After the manipulation, the effective distance from the individual tests of the series is used for ascertaining the visual acuity.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: November 12, 2019
    Assignee: Oculocare Medical AG
    Inventors: Martin K. Schmid, Michael A. Thiel, Lucas M. Bachmann, Kenny R. Lienhard
  • Patent number: 10467949
    Abstract: A display apparatus, a driving method of a display apparatus, and a computer readable recording are provided. The method includes displaying an image on an entire screen area of a display unit, and in response to a user or a user device approaching (e.g., being detected by) the display unit, controlling the display unit to reduce the image and display the reduced image in a first area of the screen area and to control a second area of the screen area other than the first area to operate as a mirror.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: November 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-youn Han, Sung-hyun Jang, Sang-min Hyun, Se-ran Jeon, Ji-min Hong
  • Patent number: 10458848
    Abstract: A dental imaging and illumination device. The device has an optical interface for emitting light from the device and for receiving light into the device. The device has a light source, a camera, a beam splitter and a color reference. The color reference and the light source are optically coupled via an optical path so that the light source can illuminate the color reference. This optical path bypasses the beam splitter. The device facilitates color measuring particularly in the field of dentistry.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: October 29, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Johannes Fink
  • Patent number: 10433723
    Abstract: A control apparatus of an imaging apparatus, includes a selection unit configured to select an image-capturing site of a subject to be examined, a control unit configured to control adjustment of a member of the imaging apparatus, according to the selected image-capturing site, and a determination unit configured to determine whether to perform the adjustment or not in response to a change of image-capturing sites through the selection by the selection unit, based on image-capturing conditions for the image-capturing sites before and after the change of the image-capturing sites.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 8, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Naba, Yukio Sakagawa
  • Patent number: 10398598
    Abstract: A system, method, and apparatus for performing enhanced visually directed procedures under low ambient light conditions are disclosed. An example method includes acquiring at least one real-time high resolution video signal representing at least one view of an eye in at least one wavelength of light outside of the wavelengths of visible light. The example method also includes converting the at least one view corresponding to the at least one real-time high resolution video signal at the at least one wavelength of light outside of the wavelengths of visible light into at least one wavelength of visible light. The at least one real-time high resolution video signal is acquired after light conditions are low enough such that a pupil of the eye does not constrict substantially from its maximum pupillary diameter.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: September 3, 2019
    Assignee: TrueVision Systems, Inc.
    Inventor: Ashok B. Tripathi
  • Patent number: 10390996
    Abstract: Embodiments of the invention provide methods and systems for analyzing the ophthalmic anatomy of a patient posterior to the cornea. The method may include scanning a focus of a femtosecond laser beam along a path within the patient's eye. A portion of the path may be disposed posterior to the patient's cornea. The method may also include acquiring a first reflectance image and a second reflectance image associated with the focus disposed respectively at a first location of the path and a second location of the path. The method may further include determining the presence or absence of an ophthalmic anatomical feature of the eye based on a comparison between the first reflectance image and the second reflectance image.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: August 27, 2019
    Assignee: AMO Development, LLC
    Inventors: Zsolt Bor, John Tamkin
  • Patent number: 10379609
    Abstract: Provided are a line-of-sight measurement device and method, which perform automatic calibration of line-of-sight measurement for distance-gazing users. The device is provided with: an optical axis-calculating means for calculating the optical axes of both the left and right eyeballs when viewing two distant points; a discrepancy calculating means for calculating, with the visual axes of the left and right eyeballs during distance-gazing being parallel as a constraint, the discrepancies between the optical axes and the visual axes for both the left and right eyeballs; and a fixation point-calculating means for calculating the user's fixation point on the basis of the discrepancy between the optical axes and the visual axes. For the constraint, the outer product value of the respective vectors of the left and right eye visual axes is 0 or the inner product of the respective unit vectors of the left and right eye visual axes is 1.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: August 13, 2019
    Assignee: National University Corporation Kobe University
    Inventors: Takashi Nagamatsu, Tatsuhiko Ueki
  • Patent number: 10371632
    Abstract: To provide a technique capable of highly accurately measure the intensity and the spectrum of fluorescence and scattered light by effectively correcting measurement error that occurs due to variation of flow positions of fine particles in a channel. A data correction method for a fine particle measurement device is provided, which includes an intensity detection procedure capable of detecting light generated from a fine particle by emitting light onto the fine particle flowing through a channel, and obtaining intensity information about the light, a position detection procedure capable of obtaining position information about the fine particle, and a correction procedure for correcting the intensity information on the basis of the position information.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: August 6, 2019
    Assignee: Sony Corporation
    Inventors: Nao Nitta, Shingo Imanishi, Taichi Takeuchi
  • Patent number: 10345903
    Abstract: A method of detecting eye location for a head-mounted display system includes directing positioning light to an eye of a user and detecting the positioning light reflected from the eye of the user. The method further includes determining a distance between the eye and a near-eye optic of the head-mounted display system based on attributes of the detected positioning light, and providing feedback for adjusting the distance between the eye and the near-eye optic.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: July 9, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Steve Robbins, Scott C. McEldowney, Xinye Lou, David D. Bohn, Quentin Simon Charles Miller, David Nister, Gerhard Schneider, Christopher Maurice Mei, Nathan Ackerman
  • Patent number: 10314746
    Abstract: The amount of energy to provide optical breakdown can be determined based on mapped optical breakdown thresholds of the treatment volume, and the laser energy can be adjusted in response to the mapped breakdown thresholds. The mapping of threshold energies can be combined with depth and lateral calibration in order to determine the location of optical breakdown along the laser beam path for an amount of energy determined based on the mapping. The mapping can be used with look up tables to determine mapped locations from one reference system to another reference system.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: June 11, 2019
    Assignee: OPTIMEDICA CORPORATION
    Inventors: David Angeley, Bruce Woodley, David Dewey, Mike Simoneau, Georg Schuele, Gloria Londono
  • Patent number: 10299676
    Abstract: A system for detecting position data of an element in the front region of an eye. A first system component continuously detects position changes of the vertex of the cornea of the eye. A second system component directs electromagnetic radiation at topographical structures of the cornea to be ascertained or modified. A control unit includes a processor and memory. Alignment of the first system component with respect to the alignment of the second system component is defined, and the second system component is continuously guided to the respective target position thereof, by the control unit based on the position changes detected by the first system component. Light sources, which illuminate the cornea, are symmetrically disposed around the main axis of the system so that a pattern of reflection points is created on the cornea. The processor determines the current position of the vertex as the center of the reflection points.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: May 28, 2019
    Assignee: Heidelberg Engineering GmbH
    Inventors: Ralf Engelhardt, Björn Martensen
  • Patent number: 10304166
    Abstract: Sub-regions within one or more face images are identified within a digital image, and enhanced by applying an artificial glint symmetrically and/or synchronously to image data corresponding to sub-regions of eyes within the face image. An enhanced face image is generated including an enhanced version of the face that includes certain original pixels in combination with pixels corresponding to the one or more eye regions of the face with the artificial glint.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: May 28, 2019
    Assignee: FotoNation Limited
    Inventors: Corneliu Florea, Cosmin Nicolae Stan, Mihai Ciuc, Adrian Capata
  • Patent number: 10254831
    Abstract: A method of determining a point or object on a digital display that is being gazed at by a viewer by capturing an image of the viewer's iris and at least one other feature of the viewer's face, calculating an imaginary line from the object being viewed, to the iris and continuing to an imaginary center of the viewer's eye, then calculating a position of the center of the eye relative to the other feature of the viewer's face. Upon a change in the position of the eye and the iris, a calculation can be made of a position of the iris in a second image. An imaginary line can be extended out from the center of the eye, through the new position of the iris onto the digital display to determine the point of gaze of the viewer.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: April 9, 2019
    Assignee: Umoove Services Ltd.
    Inventors: Yitzchak Kempinski, David Asulin, Zehava Lasker, Sophia Frij, Ronen Harati
  • Patent number: 10251547
    Abstract: There are included an acquiring unit configured to acquire a parameter regarding capturing of a first tomographic image of an eye to be examined, an acquiring unit configured to acquire a parameter regarding capturing of a second tomographic image of the eye to be examined, wherein capturing of the second tomographic image is being performed after capturing of the first tomographic image, and a warning unit configured to issue a warning against capturing of the second tomographic image in accordance with a comparison between the parameter regarding capturing of the first tomographic image and the parameter regarding capturing of the second tomographic image.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: April 9, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobuyoshi Kishida
  • Patent number: 10251713
    Abstract: A robotized surgery system (10) comprises at least one robot arm (11) which acts under the control of a control console (12) intended for the surgeon. The console (12) comprises an eye tracking system (21) for detecting the direction of the surgeon's gaze and for entering commands depending on the directions of the gaze detected. The console (22) comprises advantageously a screen (23) with at least one zone (23) for viewing the operating field and, among the commands which can be performed depending on the gaze directions, there is advantageously an automatic command for enabling or disabling the movement of the robot arm (11) when a gaze direction which falls within or outside of said zone (23) of the screen is detected.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: April 9, 2019
    Assignee: TRANSENTERIX ITALIA S.R.L.
    Inventors: Emilio Ruiz Morales, Damien Brasset, Paolo Invernizzi
  • Patent number: 10176614
    Abstract: A registration unit configured to perform first registration of the first image (WF-SLO image) and the second image (AI-SLO image) included in the same set and second registration of the first images included in the different sets and to generate positional information of these registration; and a superimposition unit configured to superimpose the second image included in a first set and the second image included in a second set that is the set acquired after the first set on the first image included in the first set or on the first image included in the second set based on the positional information generated by the registerer to generate a superimposed image are provided.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: January 8, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keiko Yonezawa
  • Patent number: 10159409
    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: July 28, 2017
    Date of Patent: December 25, 2018
    Assignee: Welch Allyn, Inc.
    Inventors: Ynjiun Paul Wang, Ervin Goldfain, Eric G. Petersen
  • Patent number: 10123692
    Abstract: An ophthalmologic apparatus wherein auto alignment and manual alignment can be selectively used to enhance alignment accuracy between an eye to be inspected and an ophthalmic part includes an ophthalmic part that detects an eye to be inspected, a fixing part, a movable part on which the ophthalmic part is placed and configured to be movable with respect to the fixing unit in a horizontal direction, a drive part that transmits electric drive force for horizontal movement of the movable part, an alignment detection unit that detects a relative position between the eye to be inspected and ophthalmic part, a controller that controls the movable part based on a detection result from the alignment detection unit, and a drive force transmit switching unit that switches whether or not to execute transmission of the drive force from the drive part to the movable part.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: November 13, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hayato Shioda
  • Patent number: 10123694
    Abstract: An optical measurement device including a light emitting element, a light pattern generating element and a light source transmission element is provided. The light pattern generating element includes a disk body, at least one round hole penetrating the disk body, at least one round disk embedded in the round hole, and at least two first magnetic elements disposed on the round disk. One end of the light source transmission element has two second magnetic elements. Through the magnetic connection of the first magnetic elements and the second magnetic elements, a chink on the round disk can rotate with the light source transmission element when the light source transmission element rotates. An optical measurement system including the optical measurement device is also provided.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: November 13, 2018
    Assignee: Tzu Chi University
    Inventor: Tsu-Wang Shen
  • Patent number: 10117577
    Abstract: A visual field calculation apparatus capable of accurately calculating a visual field range of a user without using a complex configuration is provided. The visual field calculation apparatus includes a saccade detector that detects a saccade on the basis of a first gaze direction detected at a first timing and a second gaze direction detected at a second timing, a saccade speed calculator that calculates speed of the saccade on the basis of a time difference between the first timing and the second timing, the first gaze direction, and the second gaze direction, and a visual field range calculator that calculates a displacement vector of a saccade whose speed exceeds a first threshold, and calculates an area including a final point of the displacement vector as the visual field range of the user.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: November 6, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Makoto Mochizuki, Koichi Emura, Tetsuo Matsuse, Hayashi Ito
  • Patent number: 10095936
    Abstract: An eye open state determination device includes an eyelid opening degree detector that detects a degree of opening of an eyelid of the subject from an image of an eye of a subject acquired by an image acquirer, a red eye generator that illuminates the subject with light to generate a red eye image on the image of the eye, a red eye detector that detects presence or absence of generation of the red eye image, an operation controller that activates the red eye generator at a timing different from a timing at which the image acquirer acquires the image of the eye, and a determinator that determines an eye open state of the subject based on the degree of opening of the eyelid and the presence or absence of generation of the red eye image.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: October 9, 2018
    Assignee: DENSO CORPORATION
    Inventor: Naoshi Ohya
  • Patent number: 10080495
    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: September 26, 2014
    Date of Patent: September 25, 2018
    Assignee: Elwha LLC
    Inventors: Allen L. Brown, Jr., Douglas C. Burger, Eric Horvitz, Roderick A. Hyde, Edward K. Y. Jung, Jordin T. Kare, Chris Demetrios Karkanias, Eric C. Leuthardt, 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: 10058245
    Abstract: An optometric instrument includes an alignment device that includes light sources for sending out light beams through one or more light channels from the instrument onto the retina of an eye of a patient. The light channels are directed parallel with the visual axis of the eye at correct alignment, whereat the light beams are visible for the patient in an intended way. A method for aligning an optometric instrument includes sending out light beams from the light sources through one or more light channels onto the retina of the eye of a patient, and positioning the instrument to have the light channels parallel with the visual axis of the eye of the patient as a result of finding a position, wherein the light can be correctly viewed by the patient.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: August 28, 2018
    Assignee: ICARE FINLAND OY
    Inventors: Teemu Herranen, Ari Kukkonen
  • Patent number: 10045693
    Abstract: An ophthalmologic observation apparatus of an embodiment includes a photographing optical system, measuring optical system, optical-path coupler, first and second drivers and controller. The photographing optical system includes a first focusing lens and performs photography for acquiring a front image of an eye. The measuring optical system includes a second focusing lens and performs OCT for acquiring a cross-sectional image of the eye. The optical-path coupler couples optical paths of the photographing optical system and measuring optical system at a location on the eye side than the first and second focusing lenses. The first driver moves the first focusing lens along an optical axis of the photographing optical system. The second driver moves the second focusing lens along an optical axis of the measuring optical system. The controller controls the first and second drivers individually.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: August 14, 2018
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Ryuichi Morishima, Kohta Fujii
  • Patent number: 10004397
    Abstract: The present invention is directed to a method and system for improved aiming during Optical Coherence Tomography (OCT) on young children and those unable to cooperate with OCT imaging by synchronization with retinal birefringence scanning (RBS). OCT is performed without knowing whether or not the subject is looking at the intended target. The present invention combines OCT retinal imaging, such as, but not limited to, time domain OCT, SDOCT, or SSOCT, with RBS technology that provides accurate information on the presence or absence of foveal fixation. Therefore, the present invention only analyzes data during foveal fixation. A system combining OCT with RBS is implemented such that both systems co-operate in a specified alignment, such that when the RBS fixation detection system detects alignment with the fovea of the eye, the OCT system will be aimed at the retinal region of interest, usually but not necessarily including the macular area.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: June 26, 2018
    Assignees: The Johns Hopkins University, Duke University
    Inventors: Boris Gramatikov, David Lee Guyton, Kristina Irsch, Cynthia Toth, Oscar Carrasco-Zevallos, Joseph Izatt
  • Patent number: 9962079
    Abstract: A slit lamp device for use in an ophthalmoscope includes one or more light sources for providing a light path comprised of one or more beams of: visible light and infrared (IR) light; a slit lamp control mechanism along the light path for receiving the one or more light beams and forming the one or more light beams into a slit light beam; the slit lamp control mechanism further controlling the width of the formed slit light beam; a first, narrow slit passes visible light through the slit control mechanism and a second, wider slit passes IR light though the slit control mechanism.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 8, 2018
    Assignee: LUMENIS LTD.
    Inventors: Tomer Carmeli, Yosef Wexler, Shai Yefet, Oren Liav
  • Patent number: 9955866
    Abstract: An optical tomographic imaging apparatus includes a first lens having a first focal length, a second lens having a second focal length longer that the first focal length, a scanning unit disposed at a focal position of the second lens, and an optical path branching unit disposed between the first and second lenses. An observation optical path located on a transmission optical path of the optical path branching unit, and an optical path of measurement light located on a reflection optical path of the optical path branching unit. The second lens is disposed on the optical path of the measurement light between the first lens and the scanning unit, such that an angle at which the measurement light scanned by the scanning unit is incident on the optical path branching unit is maintained substantially unchanged during scanning.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: May 1, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Muto, Hirofumi Yoshida
  • Patent number: 9953214
    Abstract: A gaze direction determining system and method is provided. A two-camera system may detect the face from a fixed, wide-angle camera, estimates a rough location for the eye region using an eye detector based on topographic features, and directs another active pan-tilt-zoom camera to focus in on this eye region. A eye gaze estimation approach employs point-of-regard (PoG) tracking on a large viewing screen. To allow for greater head pose freedom, a calibration approach is provided to find the 3D eyeball location, eyeball radius, and fovea position. Both the iris center and iris contour points are mapped to the eyeball sphere (creating a 3D iris disk) to get the optical axis; then the fovea rotated accordingly and the final, visual axis gaze direction computed.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: April 24, 2018
    Assignee: The Research Foundation for the State Universirty of New York
    Inventors: Lijun Yin, Michael Reale
  • Patent number: 9946339
    Abstract: A method to furnish input representing gaze direction in a computer system operatively coupled to a vision system. In this method, a first image of an eye at a first level of illumination is acquired by a camera of the vision system. The first image is obtained from the camera, and a second image of the eye corresponding to a second, different level of illumination is also obtained. Brightness of corresponding pixels of the first and second images is compared in order to distinguish a reflection of the illumination by the eye from a reflection of the illumination by eyewear. The input is then furnished based on the reflection of the illumination by the eye.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: April 17, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Huimin Guo, Ibrahim Eden, Vaibhav Thukral, David Zachris Nister
  • Patent number: 9936873
    Abstract: An ophthalmology apparatus includes an apparatus body on which a first measurer and a second measurer are provided and which is movable relative to a base by a driver, a forehead support provided on the base, and a controller. The controller detects a first front position setting a distance between the second measurer and the forehead support as a first interval and a second front position setting a distance between the second measurer and the forehead support as a second interval larger than the first interval, and emits a warning when the apparatus body reaches the second front position in moving the apparatus body to a forehead support side and stops movement of the apparatus body to the forehead support side when the apparatus body reaches the first front position.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: April 10, 2018
    Assignee: Kabushiki Kaisha TOPCON
    Inventor: Naoki Inuzuka
  • Patent number: 9931034
    Abstract: An optical coherence tomography includes a light source, a light separator, a light generator configured to generate interference light, a detector configured to detect the interference light, a first optical element, and at least one of second optical elements comprising a pair of surfaces, and performs forming a tomographic image of a subject. The first optical element is arranged on a measurement light path so as to be closest to the subject, and satisfies at least one of following conditional formulas: ?(W?S)<U?2Z<X?W;??[a2] U?2Z<?W; and??[b1] U?2Z>X?W+S,??[c2] W: a predetermined operation distance U: a depth of interest S: a range of interest X: a distance which is greater than W+U+S and minimal among distance(s) between the pair of surfaces Z: a shallowest position of the area of interest relative to an origin position.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: April 3, 2018
    Assignee: Tomey Corporation
    Inventors: Tsutomu Ohmori, Masahiro Yamanari, Satoshi Sugiyama
  • Patent number: 9921663
    Abstract: Even when a user is gazing at one point intentionally but the eyeball of the user is actually moving slightly, the slight movement is not reproduced as it is as the position of a cursor but a determination is made that the user is gazing at one point intentionally, that is, the eyeball is stopping. Thus, when a determination is made that the eyeball is stopping, the cursor is displayed still even when the gazing point is moving slightly depending on the slight movement. Furthermore, when a determination is made that the cursor is stopped, selection of an object such as other icon displayed at a position where the cursor is displayed is identified.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: March 20, 2018
    Assignee: OSAKA ELECTRO-COMMUNICATION UNIVERSITY
    Inventor: Takuya Niikawa
  • Patent number: 9888846
    Abstract: An ophthalmological apparatus includes an optical system, a display device, a subject's eye position acquisition processor, and a control processor that acquires information on positional displacement of the optical system for inspection with respect to the subject's eye on the basis of the three-dimensional position to allow an alignment index image for performing alignment of the optical system for inspection with respect to the subject's eye in accordance with the information on positional displacement to be displayed in a screen of the display device in a pseudo manner, where the control processor has a plurality of display modes, in each of which the alignment index image is displayed in a different display form to allow the alignment index image to be displayed in the screen of the display device in a display mode selected from the plurality of display modes in a pseudo manner.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: February 13, 2018
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Kenji Miyashita, Jun Sakai
  • Patent number: 9867537
    Abstract: An example method for automatically measuring a subject's phoria while the subject fixates on a visual target can include capturing an image of at least one of the subject's eyes using an image capturing device. The image can include a reflection of light from at least one of the subject's eyes. The method can also include analyzing the image to identify a position of the reflection of the light within at least one of the subject's eyes, and determining a phoria measurement based on the position of the reflection of the light within at least one of the subject's eyes.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: January 16, 2018
    Assignee: Ohio State Innovation Foundation
    Inventor: Melissa Diane Bailey