Having Means To Detect Proper Distance Or Alignment (i.e., Eye To Instrument) Patents (Class 351/208)
  • 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: 9867538
    Abstract: An ophthalmic apparatus includes an AOSLO apparatus, a WFSLO apparatus, and a tracking processor that controls a tracking mirror based on position information calculated from AOSLO and WFSLO images. In another embodiment, the tracking processor controls the tracking mirror based on position information calculated from WFSLO images only. Depending on the amount of movement a target image with respect to a reference image, and the accuracy of detection thereof, the tracking mirror of either the AOSLO apparatus or the WFSLO apparatus can be selectively controlled according to a difference in position of the target image with respect to the reference image.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: January 16, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Nozato, Kenichi Saito, Kaishi Ohashi, Akira Sato, Futoshi Hirose, Hiroshi Imamura
  • 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
  • Patent number: 9849037
    Abstract: A patient interface for coupling an ophthalmological application head to an eye of a patient includes a patient-sided interface structure to be coupled to the eye of a patient, and a source-sided interface structure for rigidly coupling the patient interface to the application head or an intermediate element. The source-sided interface structure comprises a first source-sided patient interface coupler and a second source-sided patient interface coupler. The first source-sided patient interface coupler is designed to restrict the mobility of the patient interface relative to the application head or the intermediate element by providing a coupling with a first patient interface coupler counterpiece of the application head or the intermediate element.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: December 26, 2017
    Assignee: Ziemer Opthalmic Systems AG
    Inventors: Christian Rathjen, Thomas Studer
  • Patent number: 9844322
    Abstract: A camera device configured to obtain an image of an eye is provided. The camera apparatus includes an image sensing unit, a lens set, and a processing unit. The lens set is located between the image sensing unit and the eye and projects light from the eye to the image sensing unit. Here, the lens set and the image sensing unit correspondingly move relative to the eye and continuously shoot a plurality of images of a plurality of parts of the eye. The processing unit is electrically connected to the image sensing unit, and the processing unit stitches the images. A photographing method is also provided.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: December 19, 2017
    Assignee: ALTEK BIOTECHNOLOGY CORPORATION
    Inventors: Shin-Hao Cheng, Pin-Wen Chen
  • Patent number: 9750405
    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 after covering and uncovering the at least one of the subject's eyes. 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 24, 2015
    Date of Patent: September 5, 2017
    Assignee: Ohio State Innovation Foundation
    Inventor: Melissa Diane Bailey
  • Patent number: 9722656
    Abstract: A system for mobile device photography and videography comprises a camera-shaped case configured to retain a mobile device. A lens of the case may be configured to direct an image into a camera lens of the mobile device, with the lens and the camera lens of the mobile device arranged substantially perpendicularly to each other. The camera-shaped case may also comprise a viewfinder that directs any visible content displayed on a portion of the graphical user interface into an eyepiece attached to the viewfinder. Additionally, the camera-shaped case may comprise an eyepiece connected to the viewfinder, a button disposed configured to actuate a camera function of the mobile device, and a cable to be inserted into the mobile device. The system may also include a downloadable software application executable on the mobile device configured to display an image and one or more videography controls on the graphical user interface.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: August 1, 2017
    Assignee: Super 6 LLC
    Inventors: Scott McDonald, Alex Bogusky
  • Patent number: 9687144
    Abstract: A method for photographing a fundus image includes: acquiring photographing condition data on a first captured image being a cell image of a fundus as reference data for follow-up image capture related to the cell image, and storing the photographing condition data; and selecting, based on an operation input from an examiner, reference data for the follow-up image capture from one or more pieces of the reference data stored in advance, and reproducing a photographing condition in accordance with the selected reference data to newly acquire the cell image.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: June 27, 2017
    Assignee: NIDEK CO., LTD.
    Inventors: Naohisa Shibata, Yuji Yamazaki, Masaaki Hanebuchi, Yuki Yoshihara
  • Patent number: 9632585
    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: March 21, 2014
    Date of Patent: April 25, 2017
    Assignee: OSAKA ELECTRO-COMMUNICATION UNIVERSITY
    Inventor: Takuya Niikawa
  • Patent number: 9566003
    Abstract: In order to detect a position alignment state between an apparatus and an eye to be inspected in a working distance direction with high precision at a high speed in the apparatus side, an ophthalmologic apparatus is disclosed. The position alignment state between the eye to be inspected and the apparatus in the working distance direction is detected by evaluating a contrast of an index image that is obtained as a reflection image of an index projected onto an anterior ocular segment, and a contrast of the index image is evaluated using a ratio or a difference between pixel numbers of the index image in at least two or more gray scale values.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: February 14, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Manabu Wada
  • Patent number: 9526416
    Abstract: An ophthalmologic apparatus which is capable of preferably executing position matching between an eye and optical system is provided. An ophthalmologic apparatus of an embodiment includes an examination optical system, supporting part, driver, two or more imaging parts, analyzer and controller. The examination optical system is used for an examination of the eye. The supporting part supports a face of a subject. The driver moves the examination optical system and the supporting part relatively and three-dimensionally. The two or more imaging parts substantially simultaneously photograph an anterior eye part of the eye from different directions. The analyzer obtains a three-dimensional position of the eye by analyzing two or more photograph images acquired by the two or more imaging parts substantially simultaneously. The controller controls the driver based on the three-dimensional position to relatively move the examination optical system and the supporting part.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: December 27, 2016
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Takashi Fujimura, Taisaku Kogawa, Ryuichi Morishima, Hiroaki Okada, Takefumi Hayashi
  • Patent number: 9492079
    Abstract: In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: November 15, 2016
    Assignee: Doheny Eye Institute
    Inventors: Alexander C. Walsh, Paul G. Updike, Srinivas R. Sadda
  • Patent number: 9480398
    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: November 1, 2016
    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: 9462937
    Abstract: An ophthalmic device includes an acquisition unit configured to acquire a transillumination image of a pupil of a subject eye, and a determining unit configured to determine whether or not the subject eye includes an intraocular lens, based on the acquired transillumination image.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: October 11, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Koichi Ohta
  • Patent number: 9462945
    Abstract: Systems and methods of obtaining and recording fundus images by minimally trained persons, which includes a camera for obtaining images of a fundus of a subject's eye, in combination with mathematical methods to assign real time image quality classification to the images obtained based upon a set of criteria. The classified images will be further processed if the classified images are of sufficient image quality for clinical interpretation by machine-coded and/or human-based methods. Such systems and methods can thus automatically determine whether the quality of a retinal image is sufficient for computer-based eye disease screening. The system integrates global histogram features, textural features, and vessel density, as well as a local non-reference perceptual sharpness metric. A partial least square (PLS) classifier is trained to distinguish low quality images from normal quality images.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: October 11, 2016
    Assignee: VISIONQUEST BIOMEDICAL LLC
    Inventors: Simon Barriga, Carla Agurto, Honggang Yu, Peter Soliz, Gilberto Zamora, Vinayak Joshi
  • Patent number: 9427147
    Abstract: An optical coherence tomography system that includes an optical device having an adjustable optical element configured to displace a pupil entry point of light is provided. Optical coherence tomography methods using the optical coherence tomography system are also provided. The subject optical coherence tomography systems and methods find use in a variety of different applications, including imaging applications.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: August 30, 2016
    Assignees: The Regents of the University of California, The Medical College of Wisconsin, Inc.
    Inventors: Brandon Lujan, Austin Roorda, Joseph Carroll, Carlos Rivera-Carpio, Vikram Makhijani
  • Patent number: 9427150
    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: April 28, 2014
    Date of Patent: August 30, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Muto, Hirofumi Yoshida
  • Patent number: 9339181
    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 according to a schedule, under the control of a scheduling controller.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: May 17, 2016
    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: 9332905
    Abstract: A retinoscopic device, technique and scale for estimating the reflectance of the macula pigment optical density (MPOD) in normal and abnormal eyes in order to detect early pathology of the retinal pigment epithelium and photoreceptors thus screening for macular pathology the most prevalent of which is Age-related Macular Degeneration (AMD) and retinal edema and cystoid macular edema post cataract surgery.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: May 10, 2016
    Inventor: Clinton Norton Sims
  • Patent number: 9320424
    Abstract: An image display apparatus obtains a plurality of moving images obtained by capturing a plurality of imaging areas of a fundus, and a wide field of view image obtained by capturing an area including the plurality of imaging areas of the fundus. Each of the plurality of moving images is associated with pulse data based on a biomedical signal obtained in capturing the moving image. The image display apparatus superimposes and displays at least one frame of each of the plurality of moving images at a position on the wide field of view image, which is determined based on information about the positions of the plurality of imaging areas. In the superimposing/display operation, the image display apparatus displays the plurality of moving images at a display timing synchronized based on the pulse data.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: April 26, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroshi Imamura
  • Patent number: 9289121
    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: September 26, 2014
    Date of Patent: March 22, 2016
    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: 9247868
    Abstract: An ophthalmologic apparatus includes: a position control unit configured to control a position changing unit which changes a position of an examination unit, such that fine movement driving of the examination unit is performed in a case where a tilt angle of the operating member is smaller than a first angle, and coarse movement driving of the examination unit is performed in a case where the tilt angle of the operating member is equal to or greater than the first angle; and an angle control unit configured to control an angle changing unit which changes the angle of the operating member such that the tilt angle of the operating member is automatically changed to a second angle which is smaller than the first angle, in accordance with a change from the coarse movement to the fine movement.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: February 2, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiraku Ogura
  • Patent number: 9232891
    Abstract: The invention relates, according to one aspect, to a retinal imaging device including at least one source (LSa, LSr) for emitting a light beam in order to illuminate the retina of an eye (10) of a subject, a retinal imaging path including a detection device (12) having a detection plane (121) and an optical imaging system (L1, L5, L6), an analysis path including a device (15) for measuring optical defects having an analysis plane (151) for receiving a set of light rays backscattered by the retina and optical means for adjoining said analysis plane and a predetermined plane in the input space of said imaging system of the imaging path, a correction device (14) shared by said analysis and imaging paths, which includes a correction plane (141) and which is intended to correct, in said correction plane, the light rays from said emission source and backscattered by the retina according to the optical defects measured by the device for measuring optical defects.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: January 12, 2016
    Assignee: Imagine Eyes
    Inventor: Xavier Levecq
  • Patent number: 9232890
    Abstract: In order to prevent inaccurate position detection caused by overlapping between a position alignment index and an optic papilla of a fundus in position alignment between an eye to be inspected and an apparatus when a fundus image is photographically captured, an ophthalmologic apparatus includes: a projection unit configured to project a plurality of alignment indices onto an eye to be inspected; an optic papilla position detection unit configured to detect an optic papilla position of the eye to be inspected; and an alignment detection unit configured to detect a positional relation between the eye to be inspected and an apparatus main body from a reflection image of the alignment index, wherein the alignment detection unit performs alignment detection by selecting a reflection image of at least one of the reflection images of the plurality of alignment indices depending on the optic papilla position.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: January 12, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mitsuhiro Ono
  • Patent number: 9226656
    Abstract: A real-time ophthalmoscope system for imaging an eye includes a wide field scanning light ophthalmoscope (SLO) configured for wide field imaging of the eye. The system also includes a small field SLO configured for high resolution imaging of the eye. A 2D tracking minor electrically coupled to a computer, and a 2D steering minor electrically coupled to the computer, are both disposed in an optical path between the small field SLO and the eye. The system is configured to acquire a plurality of small field images at a plurality of locations on the eye as defined by the 2D steering minor, each of the small field images is stabilized for a motion of the eye by the 2D tracking minor. A method for imaging of the eye is also described.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: January 5, 2016
    Assignees: University of Rochester, Montana State University
    Inventor: Qiang Yang
  • Patent number: 9226659
    Abstract: A fundus camera according to the present invention includes a light metering unit configured to change a light metering area within an image captured by an imaging unit based on one of a position and a size of a light blocking member, and a controlling unit configured to control an amount of light emission from a light source based on a light metering value corresponding to the light metering area.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: January 5, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoyuki Iwanaga
  • Patent number: 9191562
    Abstract: An optical adapter for secure and adjustable mounting of a mobile media device having a camera lens to an optical eyepiece of an optical device. The adapter having the ability to quickly and reliably attach a mobile media device such as smart phone, iPhone, Droid, etc. to a wide range of various diameter optical devices such as binoculars, birding scopes, excavation scopes, microscopes and telescopes. The optical adapter comprises a flat base plate having a central aperture for passing light and a plurality of aligned openings, an adjustable strap which is woven within the plurality of aligned openings in order to secure the mobile media device, and an adjustable optical eyepiece attachment assembly which provides secure attachment to an optical eyepiece.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: November 17, 2015
    Inventor: Robert W. Schorr, II
  • Patent number: 9173561
    Abstract: An alignment apparatus and method is disclosed, for ensuring correct alignment of a patient's eye with respect to an ophthalmic or optometric instrument. Graphical objects are provided which represent an ideal and an actual position of the eye, and provide for easy and intuitive feedback to an eye care professional operating the instrument on the alignment position of the patient.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: November 3, 2015
    Assignee: Optos plc (Murgitroyd)
    Inventors: Jennifer Margaret Rice-Jones, Michael James Bartelme
  • Patent number: 9164621
    Abstract: A stereoscopic display apparatus comprising a judging part judging the dominant eye of the user inputting the position coordinates via the coordinate input part based on the reference coordinates of the dominant eye judgment image formed of the left viewpoint image and the right viewpoint image and the obtained position coordinates, depending on whether the obtained position coordinates are near the reference coordinates of the left viewpoint image or the reference coordinates of the right viewpoint image.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 20, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Yanagita, Atsushi Misawa
  • Patent number: 9144379
    Abstract: A retinoscopic device, technique and scale for estimating the reflectance of the macula pigment optical density (MPOD) in normal and abnormal eyes in order to detect early pathology of the retinal pigment epithelium and photoreceptors thus screening for macular pathology the most prevalent of which is Age-related Macular Degeneration (AMD) and retinal edema and cystoid macular edema post cataract surgery.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: September 29, 2015
    Inventor: Clinton Norton Sims
  • Patent number: 9141864
    Abstract: The present invention provides techniques for directing the gaze of a subject whose image is captured by a camera, including the direction in which the subject looks, or the distance between the subject and the camera, in such a way that a visually appealing image can be captured by the camera, where a media professional (e.g., an interviewer or a director) or other person knowledgeable in media best practices is non co-located with the subject. The techniques enable the media professional to provide visual hints both manually and automatically to the remotely located subject.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: September 22, 2015
    Assignee: Vidyo, Inc.
    Inventors: Isaac Levy, Tal Shalom, Meir Sela, Stephan Wenger
  • Patent number: 9078601
    Abstract: An anterior segment measuring apparatus includes: a light projecting optical system for forming a light section on an anterior segment; a light receiving optical system for obtaining a cross-sectional image of the anterior segment by scattering of the light section at the anterior segment; a displacement detection unit for detecting displacement in a direction orthogonal to the light section between the position where the actual cross-sectional image is acquired and the position of the expected cross-sectional image; and a controller for forming the cross-sectional image of the anterior segment, processing the cross-sectional image to measure the anterior segment, and correcting a measurement result for the anterior segment based on a detection result by the displacement detection unit.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: July 14, 2015
    Assignee: NIDEK CO., LTD.
    Inventors: Kunio Suzuki, Noriji Kawai, Masakazu Endo
  • Patent number: 9070017
    Abstract: Methods for determining a point-of-gaze (POG) of a user in three dimensions are disclosed. In particular embodiments, the methods involve: presenting a three-dimensional scene to both eyes of the user; capturing image data including both eyes of the user; estimating first and second line-of-sight (LOS) vectors in a three-dimensional coordinate system for the user's first and second eyes based on the image data; and determining the POG in the three-dimensional coordinate system using the first and second LOS vectors.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: June 30, 2015
    Assignee: Mirametrix Inc.
    Inventors: Craig A. Hennessey, Peter D. Lawrence
  • 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: 9039176
    Abstract: A corneal endothelial cell photographing apparatus comprises: a main unit including: an illumination optical system for illuminating illumination light from an illumination light source toward a cornea of an examinee's eye from an oblique direction; an imaging optical system for obtaining a corneal endothelial cell image by receiving, through an imaging element, reflection light from the cornea including corneal endothelial cells; and a fixation optical system including a plurality of fixation targets and for guiding a fixation direction of the examinee's eye; a drive unit to relatively move the main unit with respect to the examinee's eye; a serial photographing unit to obtain endothelial images in series at different photographing positions in previously set up-and-down and right-and-left directions; and a monitor to display the obtained endothelial image.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 26, 2015
    Assignee: NIDEK CO., LTD.
    Inventors: Naoto Honda, Michihiro Takii
  • 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: 9033503
    Abstract: A fundus photographing apparatus for photographing a fundus of an examinee's eye includes: a photographing part including a photographing optical system for photographing the fundus; a mechanism for moving the photographing part; a presenting part for presenting a fixation target to the eye; an alignment detecting optical system including a light receiving element to detect an alignment state of the photographing part; and a setting part for setting an alignment completion position in a back and forth direction of the photographing part relative to the eye based on the detected alignment state. The alignment completion position includes a first alignment completion position information to be set when an optical axis of the photographing part is in a predetermined range relative to a corneal vertex of the eye and a second alignment completion position information to be set when the optical axis is apart from the predetermined range.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: May 19, 2015
    Assignee: NIDEK CO., LTD.
    Inventors: Masayuki Yoshino, Yusuke Ando
  • Patent number: 9028066
    Abstract: An ophthalmic apparatus includes a control unit configured to, when a manipulated value detected by a manipulated value detection unit is a first manipulated value within a predetermined range, control to move the moving unit by a fine motion operation of moving the moving unit at a low speed, and when the manipulated value is a second manipulated value outside the predetermined range, control to move the moving unit by a coarse motion operation of moving the moving unit at a speed higher than that in the fine motion operation.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: May 12, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shintaro Akiba
  • Publication number: 20150124219
    Abstract: Systems and methods for expanding the field-of-view of ophthalmic scanning devices are presented. An ophthalmic scanning device is designed such that the pivot point of the scanning optics is maintained at a fixed location in the pupil while the scanning optics are rotated about the eye to obtain imaging data over an increased field-of-view than can be achieved by the scanning optics alone. The rotation can be achieved using a singular rotational motion of the scanning optics about a rotational axes coincident with the scanning pivot point or can be achieved using a combination of rotational motion with a second motion either rotational or translational to maintain the scanning pivot point at the fixed location. Embodiments related to optical coherence tomography and scanning laser ophthalmoscopy are described.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 7, 2015
    Inventors: Jochen M.M. HORN, Andre MALZ, Christopher J.R.V. BAKER, Oliver WIRTH
  • Patent number: 9022569
    Abstract: When an anterior segment photographing mode is selected, ease of operation by an inspector is improved. An ophthalmologic apparatus includes an area changing unit for changing a movement area of an optical unit including an optical path of measuring light, when an anterior segment photographing mode for photographing an anterior segment of an eye to be inspected is selected, to be different from a movement area when a mode other than the anterior segment photographing mode is selected.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: May 5, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Nakahara, Shigeaki Ono, Hiroki Uchida, Yukio Sakagawa
  • Patent number: 9010934
    Abstract: An optical coherence tomography apparatus includes a generation unit configured, based on interfering light produced by interfering a return beam and a reference beam of light emitted toward the object to be measured, to generate tomographic images of an object to be measured, an image processing unit configured to perform image processing for increasing image quality to at least one of the tomographic images generated by the generation unit, and a display control unit configured to display one of the tomographic images generated by the generation unit and then display the image on which the image processing is performed by the image processing unit on a display unit.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: April 21, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroki Uchida
  • Patent number: 8992017
    Abstract: An ophthalmologic apparatus includes a first light source configured to emit a first measuring beam, a second light source configured to emit a second measuring beam having a center wavelength longer than that of the first measuring beam, a third light source configured to emit a third measuring beam having a center wavelength shorter than that of the first measuring beam, a first acquisition unit configured to obtain a first image of the subject's eye by using the return beam of the second measuring beam from the subject's eye, aberration of which has been corrected by a correction unit, and a second acquisition unit configured to obtain an anterior eye portion image of the subject's eye to be used for alignment, by using a return beam of the third measuring beam from the subject's eye.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: March 31, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Yuasa
  • Publication number: 20150085252
    Abstract: An ophthalmologic apparatus which is capable of preferably executing position matching between an eye and optical system is provided. An ophthalmologic apparatus of an embodiment includes an examination optical system, supporting part, driver, two or more imaging parts, analyzer and controller. The examination optical system is used for an examination of the eye. The supporting part supports a face of a subject. The driver moves the examination optical system and the supporting part relatively and three-dimensionally. The two or more imaging parts substantially simultaneously photograph an anterior eye part of the eye from different directions. The analyzer obtains a three-dimensional position of the eye by analyzing two or more photograph images acquired by the two or more imaging parts substantially simultaneously. The controller controls the driver based on the three-dimensional position to relatively move the examination optical system and the supporting part.
    Type: Application
    Filed: April 11, 2013
    Publication date: March 26, 2015
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Takashi Fujimura, Taisaku Kogawa, Ryuichi Morishima, Hiroaki Okada, Takefumi Hayashi