Including Illuminator Patents (Class 351/221)
  • Patent number: 11096576
    Abstract: An apparatus, and corresponding method, for determining a refractive property of an eye includes a housing with a port configured to receive an eye and also light from the eye. A tunable lens can be mounted to the housing to apply a variable focal power to the light from the eye and to pass the light along an optical path toward a wavefront sensor within the housing. The wavefront sensor can receive the light via the optical path and measure a wavefront thereof. A determination module can be configured to determine a property of the eye based on the wavefront. Embodiments can be handheld, portable, and open view, while providing objective wavefront aberrometry, subjective phoroptry, and accommodation and presbyoptic evaluation, as well as lensometry functions.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: August 24, 2021
    Assignee: PlenOptika, Inc.
    Inventors: Shivang R. Dave, Daryl Lim, Nicholas James Durr
  • Patent number: 11067799
    Abstract: A display device includes a first diffraction element that diffracts light emitted from a light source section in front of an observer such that the light is directed to an eye of the observer, and a second diffraction element that is disposed in an optical path from the light source to the first diffraction element to diffract the light such that the light is directed to the first diffraction element. The first diffraction element has a wider wavelength width than the second diffraction element at the half value of diffraction efficiency with respect to light in a first wavelength range, a second wavelength range, and a third wavelength range. This structure reduces a decrease in intensity of the light diffracted by the second diffraction element and the first diffraction element even if a wavelength at which diffraction efficiency is maximum is shifted in the first diffraction element.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: July 20, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Toshiyuki Noguchi
  • Patent number: 11061253
    Abstract: An ophthalmic lens comprising: at least one first optical zone with a first axis, the at least one first optical zone being configured such that, in use with an eye, at least a portion of light passing through the at least one first optical zone is refracted to a first focal point on the first axis; and at least one second optical zone configured such that, in use with the eye, at least a portion of light passing through the at least one second optical zone is refracted to one or more focal points positioned off-axis relative to the first focal point and on at least one focal plane different than a focal plane corresponding to the first focal point; wherein the at least one second optical zone is configured such that the light extending beyond the one or more focal points provides extended depth of focus.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: July 13, 2021
    Assignee: Brien Holden Vision Institute Limited
    Inventors: Arthur Back, Hassan Esfandiarijahromi
  • Patent number: 11058297
    Abstract: An OCT system for generating images of an anterior or posterior segment of an eye is described. The system includes a light source, a controller, optics, a detector, and a processor. The light source generates a beam of light and is capable of operating in a posterior or an anterior segment imaging mode. In the posterior segment imaging mode, light source outputs light with a first spectral bandwidth of less than 120 nm and including wavelengths between about 1060 to 1070 nm. In the anterior segment imaging mode the light source outputs light with a second spectral bandwidth that is larger than 120 nm. The controller enables switching between the posterior or anterior segment imaging mode.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 13, 2021
    Assignees: CARL ZEISS MEDITEC, INC., CARL ZEISS MEDITEC AG
    Inventor: Tilman Schmoll
  • Patent number: 11048102
    Abstract: Certain embodiments of the present invention are directed to therapeutic intervention in patients with eye-length-related disorders to prevent, ameliorate, or reverse the effects of the eye-length-related disorders. Embodiments of the present invention include methods for early recognition of patients with eye-length-related disorders, therapeutic methods for inhibiting further degradation of vision in patients with eye-length-related disorders, reversing, when possible, eye-length-related disorders, and preventing eye-length-related disorders. Additional embodiments of the present invention are directed to particular devices used in therapeutic intervention in patients with eye-length-related disorders.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: June 29, 2021
    Assignee: The Medical College of Wisconsin, Inc.
    Inventors: Jay Neitz, Maureen Neitz
  • Patent number: 11039741
    Abstract: A mask for performing an eye exam of a subject includes one or more optically transparent sections for transmitting an incident light beam therethrough and incident on the subject's eye, in some embodiments, the one or more optically transparent sections are coated with an anti-reflective coating configured to reduce reflection of the incident light beam by the one or more optically transparent sections. In some embodiments, the one or more optically transparent sections may have a portion thereof that is tilted with respect to the incident light beam when the mask is optically interfaced with the docking portion of an ophthalmic instrument, such that the incident light beam forms a finite angle of incidence with respect to the corresponding portion of the optically transparent sections.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: June 22, 2021
    Assignee: Envision Diagnostics, Inc.
    Inventors: Alexander C. Walsh, Paul G. Updike, Richard Castro
  • Patent number: 10993613
    Abstract: An example device is configured to capture an image of an eye. The device includes a camera configured to capture the image of the eye. The device also includes: a first base configured to be moved along a first axis to position the camera to capture the image of the eye; a second base configured to be moved along a second axis to position the camera to capture the image of the eye; and a third base configured to be moved along a third axis to position the camera to capture the image of the eye.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 4, 2021
    Assignee: WELCH ALLYN, INC.
    Inventors: Allen R. Hart, Christian H. Reinke, Carlos Suarez, Ynjiun P. Wang
  • Patent number: 10986991
    Abstract: Disclosed herein are methods and apparatus for making a determination about an eye in ambient lighting conditions comprising detecting ambient light reflected out of an eye of a subject from a retina of the eye of the subject and making a determination about the eye of the subject based upon the reflected ambient light.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: April 27, 2021
    Assignee: Ohio State Innovation Foundation
    Inventor: Melissa D. Bailey
  • Patent number: 10952630
    Abstract: The present disclosure provides electroretinography devices configured to detect biopotential signals from an eye of a subject. In some embodiments, the device is configured to prevent the subject's eyelids from closing over the device when placed in contact with the anterior surface of the subject's eye. In some embodiments, the device has a Young's modulus of no more than about 50 MPa. In some embodiments, the device includes a diffusing or refracting element configured to scatter, focus or diverge incident light. In other embodiments, the device includes a void through which incident light can enter the subject's eye without passing through any portion of the device.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: March 23, 2021
    Assignee: Retmap, Inc.
    Inventors: John R. Hetling, Safa Rahmani, Tamas Ban
  • Patent number: 10932660
    Abstract: An endoscope light source device is constituted by a first light source unit that emits light in a first wavelength band, a second light source unit that emits light in a second wavelength band, a light path combining means for combining the light paths of the light emitted from the first and second light source units, and a light source control means for controlling light emission of the light source units separately. When the light source units are driven to emit light in a first mode, the respective wavelength bands of light are emitted at a first intensity ratio and combined with each other to obtain normal light, which is supplied to an endoscope.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: March 2, 2021
    Assignee: HOYA CORPORATION
    Inventors: Kunihiko Onobori, Masaaki Fukuda
  • Patent number: 10881292
    Abstract: The invention is directed to a system for determining the refractive properties of an eye. The system includes a wavefront measurement device for measuring the refractive properties of the eye. The system is configured to have at least one measurement mode assigned to children, wherein the system has an input device configured to switch the system into one of the at least one measurement mode assigned to children. The system is further configured to alter at least one of a group including a default pupillary distance, a default cornea vertex distance, a default position of the wavefront measurement device, a default position and/or direction of a measurement ray of the wavefront measurement device, a default position of a forehead and chin rest assembly of the system and a fixation target when the system is switched into the one of the at least one measurement mode assigned to children.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: January 5, 2021
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Monique Welscher, Timo Kratzer
  • Patent number: 10869623
    Abstract: Methods and devices for accurate noninvasive measurement of blood analyte concentrations are disclosed. In an example process, optical properties of a blood vessel proximate to the surface of an exposed body part, for example, the sclera or the backside of the eye lid, is measured. Analyte concentrations are determined based on the measured optical properties.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: December 22, 2020
    Assignee: SANTEC CORPORATION
    Inventor: Changho Chong
  • Patent number: 10860874
    Abstract: The present teaching relates to method, system, medium, and implementations for authenticating a user. An authentication session is first initiated to authenticate, via iris, a person claiming to be an authorized user, in which a first set of signals is randomly generated for controlling light strobing to be applied to the iris of the person for detecting liveness of the iris. A second set of signals is accordingly generated for controlling iris picture capturing synchronized with the light strobing. The light strobing is applied to the person via strobes generated based on the first set of signals and pictures of the iris of the person are acquired, based on the second set of signals, that are synchronized with the light strobing. Whether the person is live is then determined based on the synchronized pictures acquired when the light strobing is applied.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: December 8, 2020
    Assignee: Oath Inc.
    Inventors: Dante J. Pacella, Lachlan Maxwell, Mani Tadayon, Saravanan Mallesan, Lee Edward Sattler, Ashish A. Sardesai, Jean M. McManus
  • Patent number: 10832051
    Abstract: A system tracks eye movement using optical coherence in a head mounted display. The system includes an illumination source configured to project low coherence interference light onto a portion of a user's eye. The system includes a scanning system to select an axial position within the illuminated portion of the user's eye. The system includes a detector configured to collect light reflected from the illuminated portion of the user's eye at the selected axial position, and the reflected light includes measurement data characterizing the illuminated portion of the user's eye. The system includes a controller configured to compare the measurement data with a trained baseline, and determine an eye position based the comparison.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: November 10, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Nicholas Daniel Trail, Robert Dale Cavin
  • Patent number: 10820797
    Abstract: A device and method of ophthalmic diagnosis of lesions on retina utilizing a slit lamp apparatus with a pupil reader and at least one visible LED and one Infrared LED to detect a lesion on the retina of an eye.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: November 3, 2020
    Inventor: Ian W McWherter
  • Patent number: 10772495
    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: February 26, 2016
    Date of Patent: September 15, 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: 10765315
    Abstract: Systems and methods for high-resolution, wide-angle viewing of a retina of an eye using an ophthalmic microscope that can view a high-resolution image of a retina formed using a wide field of view optical system. A wide field of view optical system can involve a first lens having a diffractive surface on at least one surface and a second lens housing in a shared housing. A wide field of view optical system can involve one or more lens formed from an optical grade polymer and manufactured at a cost that allows the lens to be disposable.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: September 8, 2020
    Assignee: Alcon Inc.
    Inventors: Valentina Doushkina, Lingfeng Yu
  • Patent number: 10761419
    Abstract: Systems and methods for use in tri-spot point spread function imaging are provided that include a phase mask. The phase mask includes three partitions that each include a subset of the total area that is asymmetrical to other partitions. Each partition includes a phase delay ramp aligned along a phase delay axis, and includes a gradient of phase delays. Each phase delay axis is oriented in a different direction with respect to each other. Included is a source that outputs an excitation beam into a sample containing at least one light emitter that emits a radiation pattern when illuminated. Included is at least one sensor arranged to capture at least one image of the radiation pattern and a phase mask positioned between the at least one emitter and the at least one sensor. The phase mask is configured to produce a tri-spot point spread function.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: September 1, 2020
    Assignee: Washington University
    Inventors: Oumeng Zhang, Matthew D. Lew
  • Patent number: 10736503
    Abstract: A method of determining at least one selection parameter for selecting an intraocular lens to be inserted into an eye; the method comprises reading, by a data processing system, data indicative of an axial position of at least a portion of an anterior surface of an at least partially empty capsular bag of the eye, relative to an optical axis of the eye. The method further comprises determining an axial position parameter, which is representative of the axial position of the portion of the anterior surface, depending on the data. The method further comprises determining the at least one selection parameter for selecting the intraocular lens depending on the determined position parameter.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: August 11, 2020
    Assignee: CARL ZEISS MEDITEC AG
    Inventors: Marco Wilzbach, Christoph Hauger, Markus Seesselberg, Xing Wei, Holger Matz, Anja Seiwert, Oliver Findl, Nino Hirnschall
  • Patent number: 10694944
    Abstract: An ophthalmic imaging system for imaging an axial and lateral point-spread of light distribution pattern of light reflected from a surface of an animal or human eye includes an ophthalmic imaging apparatus adapted to generate an illumination light of a surface of the eye. A detection arm includes a digital micromirror device (DMD) having an array of mirror facets. A first detector is disposed to receive a first portion of the axial and lateral point-spread of light distribution of light, and one or a plurality of additional detectors are disposed to receive a light from one or a plurality of different portions of the axial and lateral point-spread of light distribution pattern of light. A detection arm, a method for imaging axial and lateral point-spread of light distribution components, and a method for auto-centering a distribution pattern in an imaging plane of a DMD device are also described.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: June 30, 2020
    Assignee: University of Rochester
    Inventors: Jesse Schallek, Raul Andres Guevara-Torres
  • Patent number: 10670817
    Abstract: An external endoscope light source system includes light emitting diodes for providing a light output to an endoscope. The light is provided to a fiber optic cable for transmission to the endoscope.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: June 2, 2020
    Assignee: Stryker Corporation
    Inventors: Benjamin Hyman Feingold, Vasudev Nambakam, Simon S. Hui
  • Patent number: 10671794
    Abstract: A method for determining a density of an integrated circuit layout includes analyzing the IC layout represented by polygons. A portion of the IC layout is analyzed within a sample window located at a sample point. A local density of polygons within the sample window is determined, where an area of one or more of the polygons within the sample window is weighted according to a weighting function giving unequal weight to polygon area based on a position within the sample window. The local density values at each sample point in an array of sample points can be used to determine a layout density and to identify locations of density violations.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: June 2, 2020
    Assignee: INTEL CORPORATION
    Inventors: Stefan Halama, Saravanan Padmanaban, Phanindra Bhagavatula
  • Patent number: 10634771
    Abstract: A laser scanner device adapted to be mounted to a vehicle, the device comprising a LIDAR module, the LIDAR module comprising at least one laser source, characterized by a horizontal field of view of at least 60°, an instantaneous vertical field of view of at least ±2°, a scan resolution of at least one point per 0.8° in horizontal and vertical direction, and a frame rate of at least 10 Hz for scanning at least the entire horizontal and instantaneous vertical field of view with said scan resolution.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: April 28, 2020
    Assignee: LEICA GEOSYSTEMS AG
    Inventors: Julien Singer, Lukas Heinzle, Jochen Scheja, Simon Mark, Jürg Hinderling, Burkhard Böckem
  • Patent number: 10614577
    Abstract: A head mounted display (HMD) comprises an eye tracking system configured to perform a calibration process using an eye tracking system of the HMD that includes determining a pupillary axis and/or determining an angular offset between the pupillary axis and the eye's true line of sight. The eye tracking system obtains an eye model captures images of the user's pupil while the user is looking at a target or other content displayed on the HMD. In some embodiments, the calibration process is based on a single image of the user's eye and is performed only once. For example, the process can be performed the first time the user uses the HMD, which stores the calibration data for the user in a memory for future use.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: April 7, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Robert Dale Cavin, Warren Andrew Hunt
  • Patent number: 10582852
    Abstract: Methods and apparatuses for fundus imaging are presented that use sequential selective illumination patterns to suppress unwanted reflections, scattering and haze from various optical components of a fundus-viewing instrument. This is particularly the case with those unwanted reflections produced by the objective lens contained within said instrument.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: March 10, 2020
    Assignee: CARL ZEISS MEDITEC AG
    Inventors: Daniel Bublitz, Lothar Müller, Andrea Berner
  • Patent number: 10571801
    Abstract: Provided is a coating apparatus that includes: a discharge unit that discharges a liquid on an object; a measurement unit that is able to be disposed at a position facing a discharge surface of the discharge unit and measures a height position of the discharge surface using the facing position as a reference position; and a controller that calculates a thickness of an attached substance containing a material of the liquid attached to the discharge surface based on the height position measured by the measurement unit and determines implementation of a maintenance treatment based on the calculated thickness of the attached substance.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: February 25, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kunihiko Asada, Tomohiro Harayama
  • Patent number: 10548473
    Abstract: Disclosed is an optometry measuring scale and method for determining a visual refraction value of an individual. According to the invention, the optometry measuring scale comprises a plurality of processed optotypes associated with a plurality of visual refraction corrections, wherein each processed optotype results from applying to a source optotype a determined image processing associated with a defined visual refraction correction, and an identification system for determining each defined visual refraction correction associated with each processed optotype.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: February 4, 2020
    Assignee: Essilor International
    Inventors: Guilhem Escalier, Gildas Marin
  • Patent number: 10539795
    Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: January 21, 2020
    Assignee: Magic Leap, Inc.
    Inventors: Nicole Elizabeth Samec, John Graham Macnamara, Christopher M. Harrises, Brian T. Schowengerdt, Rony Abovitz, Mark Baerenrodt
  • Patent number: 10499805
    Abstract: A visual stress assessment device is provided comprising a plurality of coloured light sources, each adapted to produce light of a predetermined hue, and a white light source. The white light source and the coloured light sources each comprise a plurality of light emitting diodes. A chamber is provided having an interior comprising a viewable region configured to provide a sample for inducing visual stress, wherein said viewable region is arranged to be illuminated by the white light source and the coloured light sources. A controller is configured to selectively operate the white light source and coloured light sources such that only one or both of a first of the coloured light sources and a second of the coloured light sources are operated simultaneously with the white light source, whereby their respective emitted light is observable in the viewable region by a user at a predetermined hue and saturation.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: December 10, 2019
    Assignee: University of Essex Enterprise Limited
    Inventor: Arnold Wilkins
  • Patent number: 10478059
    Abstract: An SS-OCT apparatus includes a clock generator configured as an interferometer including an optical path through which part of light emitted from a light source passes, the optical path being split into a first optical path and a second optical path having an optical path length difference relative to the first optical path, to generate a clock used by a converter sampling an analog signal; a tomographic image obtaining unit configured to obtain a tomographic image of a fundus by using a digital signal converted from the analog signal sampled by the converter using the generated clock; and a scan unit configured to scan illumination light across the fundus at a scan angle of 47 degrees or more in air. The tomographic image obtaining unit is configured to obtain a tomographic image of the fundus at a distance of 4.0 mm more within an eyeball in a depth range.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: November 19, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Taro Fukasawa, Toshiharu Sumiya
  • Patent number: 10458905
    Abstract: An instrument and method for analyzing a gas leak. The instrument can obtain a time series of spectra from a scene. The instrument can compare spectra from different times to determine a property of a gas cloud within the scene. The instrument can estimate the column density of the gas cloud at one or more locations within the scene. The instrument can estimate the total quantity of gas in the cloud. The instrument can estimate the amount of gas which has left the field of view of the instrument. The instrument can also estimate the amount of gas in the cloud which has dropped below the sensitivity limit of the instrument.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: October 29, 2019
    Assignee: Rebellion Photonics, Inc.
    Inventors: Robert Timothy Kester, Nathan Adrian Hagen, Ryan Mallery
  • Patent number: 10456033
    Abstract: An apparatus and a method for measuring blood flow of vessels are provided. The apparatus includes a light source, a light splitting module, a reference arm module, a sample arm module, a probing module, and a control system. The sample arm module includes a scanning unit and an optical-path shifting device. A probe light is obtained from the light splitting module, and a central line of a main light of the probe light extends through a rotation axis of the scanning unit. The probe light is reflected by the scanning unit to the optical-path shifting device. When the optical-path shifting device is rotated between a first position and a second position respectively, the probe light scans a vessel in fundus to obtain a first phase shift signal and a second phase shift signal blood flow rates and total blood flow of all the vessels near an optic disc are determined.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: October 29, 2019
    Assignee: SHENZHEN CERTAINN TECHNOLOGY CO., LTD.
    Inventors: Shuguang Guo, Mingming Wan, Peng Li, Xiangsong Dai, Dexing Zhang
  • Patent number: 10441160
    Abstract: Provided are a method and system for identifying and classifying the owner, age and health of an optic nerve head and its vasculature based on analysis of vector relationships of blood vessels and the neuroretinal rim within an image of the optic nerve head to each other.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: October 15, 2019
    Assignee: DELPHINIUM CLINIC LTD.
    Inventor: Kate Coleman
  • Patent number: 10440354
    Abstract: Embodiments of the present application disclose a light field display control method and apparatus and a light field display device. The light field display control method comprises: determining a partial depth distribution sub-region of content according to at least depth distribution information of the content; and tilting a first lenslet with respect to an original plane of a lenslet array of a light field display device according to at least a display depth of field (DoF) range of the light field display device and the depth distribution sub-region, wherein the first lenslet is a lenslet that is in the lenslet array and affects display of a first object, and the first object is a part, which is located in the depth distribution sub-region, of the content. The present application can improve display quality of an object, which is located in a partial depth distribution sub-region, of content to be displayed or content being displayed.
    Type: Grant
    Filed: December 17, 2016
    Date of Patent: October 8, 2019
    Assignee: BEIJING ZHIGU RUI TUO TECH CO., LTD.
    Inventors: Lin Du, Liang Zhou
  • Patent number: 10405744
    Abstract: An ophthalmological device emits light from a measurement optical system to an eye to be examined and calculates a dimension along the eye axis of a target portion of the eye from interfering light composed of reflected light from the eye and reference light. The measurement optical system includes incidence position changing member that changes the incidence position of light emitted to the eye, and driving unit that drives the incidence position changing member so as to scan at the incidence position of emitted light in a predetermined region of the eye. The predetermined region is a region where a straight line passes through when the straight line radially extended from the cornea apex of the eye is circumferentially moved over a predetermined angle range in the case of the eye is viewed from the front.
    Type: Grant
    Filed: June 3, 2017
    Date of Patent: September 10, 2019
    Assignee: TOMEY CORPORATION
    Inventors: Chihiro Kato, Yuji Nozawa
  • Patent number: 10398305
    Abstract: A method is provided for determining the thickness of a retina. A single beam is used to illuminate the retina of a patient. Interference between reflections off different layers within the retina cause autocorrelation in the returned signal. An FFT applied to the autocorrelation signal reveals the strongest autocorrelation, which indicates the distance between the nerve fiber layer (NFL) and the layers between the inner segment/outer segment (IS/OS) and the retinal pigment epithelium (RPE), the dominant scatterers. By analyzing autocorrelation, a single beam can be used. This avoids the problem of movement of the patient, arising in the use of a standard OCT interferometer, resulting in a simpler and less expensive technique of measuring retinal thickness.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: September 3, 2019
    Assignee: Cellview Imaging Inc.
    Inventors: Mark Hathaway, Rishard Weitz
  • Patent number: 10383511
    Abstract: An image processing apparatus has an acquisition unit which acquires a second tomogram related to a first tomogram of an eye to be examined based on position information of an eye fundus of the eye to be examined according to a predetermined rule; and a display control unit which displays the first tomogram and the second tomogram on a display unit.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: August 20, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Iwase, Akihiro Katayama
  • Patent number: 10379352
    Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: August 13, 2019
    Assignee: Magic Leap, Inc.
    Inventors: Nicole Elizabeth Samec, John Graham Macnamara, Christopher M. Harrises, Brian T. Schowengerdt, Rony Abovitz, Mark Baerenrodt
  • Patent number: 10379328
    Abstract: A confocal scanner into which light from a light source is introduced via a multimode optical fiber includes: a disk unit that includes a rotary disk; and an optical system that irradiates the rotary disk with light from an emission end face of the optical fiber. The optical system includes an element that changes a size in which the emission end face of the optical fiber is projected onto the rotary disk.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: August 13, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Hirokazu Kubo
  • Patent number: 10365498
    Abstract: An illumination device has an optical device and an irradiation unit. The irradiation unit has a light source emitting a coherent light beam, and a scanning device capable of adjusting a reflection angle of the coherent light beam emitted from the light source. The light source has light sources emitting a plurality of coherent light beams having an identical wavelength range, the hologram recording medium has a recording area to be scanned with each of a plurality of coherent light beams reflected by the scanning device, and the recording area has an interference fringe that diffracts an incident coherent light beam. The optical device uses the plurality of coherent light beams diffracted by the interference fringe of the recording area so that each of the coherent light beams diffracted by the hologram recording medium is superimposed on at least one portion to reproduce the image of the reference member.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 30, 2019
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Makio Kurashige, Kazutoshi Ishida, Tomoe Takanokura, Yasuyuki Ooyagi
  • Patent number: 10365488
    Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: July 30, 2019
    Assignee: Magic Leap, Inc.
    Inventors: Nicole Elizabeth Samec, John Graham Macnamara, Christopher M. Harrises, Brian T. Schowengerdt, Rony Abovitz, Mark Baerenrodt
  • Patent number: 10359631
    Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: July 23, 2019
    Assignee: Magic Leap, Inc.
    Inventors: Nicole Elizabeth Samec, John Graham Macnamara, Christopher M. Harrises, Brian T. Schowengerdt, Rony Abovitz, Mark Baerenrodt
  • Patent number: 10338366
    Abstract: A confocal scanner into which light from a light source is introduced via a multimode optical fiber includes: a disk unit that includes a rotary disk; and an optical system that irradiates the rotary disk with light from an emission end face of the optical fiber. The optical system includes an element that changes a size in which the emission end face of the optical fiber is projected onto the rotary disk.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: July 2, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Hirokazu Kubo
  • Patent number: 10314486
    Abstract: The present invention is directed to an indirect ophthalmoscopic system for imaging of the ocular fundus including a headband configured to hold a digital imaging device and a plus eyepiece lens in front of an eye of the examiner, with the plus eyepiece lens positioned in between the digital imaging device and the examiner's eye, such that the examiner is focused upon the display of the digital imaging device. The aperture of the digital imaging device receives light reflected from the ocular fundus of the patient's eye, emanating from the patient's pupil. The examiner examines the patient and composes the image of the ocular fundus directly in the display screen. In this way, what the examiner sees is captured by the digital imaging device. Stereoscopic imagery is obtained by optical means that create side-by-side virtual images of the aperture of the digital imaging device within the pupil of the eye.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: June 11, 2019
    Assignee: The Johns Hopkins University
    Inventors: Aaron Wang, John Avallone, David Guyton
  • Patent number: 10292583
    Abstract: Portable lensmeters and portable lensmeter modules are disclosed. In one embodiment, a portable lensmeter module comprises a housing having an aperture formed therethrough and having a first slot formed therein for receiving and reversibly coupling to a lens; a light source disposed within the housing; and a microlens array disposed within the housing. The lens and the microlens array define an optical channel from the light source to the aperture when the lens is coupled to the housing; and a light detector of a mobile device is positioned adjacent to the aperture and at a focal point of the microlens array when the lensmeter module is mechanically coupled to the mobile device.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: May 21, 2019
    Assignee: SMART VISION LABS, INC.
    Inventor: Yaopeng Zhou
  • Patent number: 10292782
    Abstract: The invention relates to a lighting device (100), which is equipped for fastening to a surgical instrument (200) or, by means of adapter (90; 91), to a body part (92), in particular a finger of a surgeon or of an operating room assistant, in order to serve as a light source during a surgical operation, in particular within a body cavity or organ cavity of genuine or traumatic origin and in other body regions that are difficult to access. At least one pin (20) pointing outward from the wall of the housing (10) is arranged on the housing (10) of the lighting device (100) in a wall area (30) directed toward the surgical instrument in the fastening position, which pin has a light emitting opening (40) at the distal end of the pin and is designed for passing through an opening (220) of the surgical instrument or of the adapter (90; 91) and thus establishing a form-closed or force-closed connection to the opening. The pin (20) is preferably movable in order to achieve optimal illumination of the operation site.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: May 21, 2019
    Assignee: CORLIFE OHG
    Inventors: Axel Haverich, Kamil Nowak, Michael Harder
  • Patent number: 10285589
    Abstract: A fundus image capture system operates to determine if the system has captured an image that identifies the fundus, a region of interest in the image, or the current field of view. According to the determination, the system can guide the user to operate the system to capture a desired fundus image.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: May 14, 2019
    Assignee: Welch Allyn, Inc.
    Inventors: Allen R. Hart, Ynjiun P. Wang
  • Patent number: 10275024
    Abstract: A multi-component method and device for improving vision for some with low vision conditions including age related macular degeneration (AMD) is disclosed. A plurality of co-pathological conditions that together make undistorted, clear and bright vision challenging are dealt with by managing the nature, amounts and patterns of light provided to the eye in a display embodiment. For example, a worn embodiment, in providing an improved image of the view ahead, modifies the frequency mix of incoming light, the relative intensities of light to different retinal locations and the color perception of the wearer while undistorting certain kinds of progressive distortion.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: April 30, 2019
    Inventor: John Castle Simmons
  • Patent number: 10264967
    Abstract: A subjective optometry apparatus includes subjective measurement unit for subjectively measuring an optical characteristic of a subject eye, the subjective measurement unit including a calibration optical system that is disposed in an optical path of a light projecting optical system projecting a visual target luminous flux toward the subject eye and changes an optical characteristic of the visual target luminous flux. The subjective optometry apparatus includes objective measurement unit for objectively measuring the optical characteristic of the subject eye, the objective measurement unit including a measurement optical system that emits measurement light to a fundus of the subject eye and receives reflected light of the measurement light.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 23, 2019
    Assignee: NIDEK CO., LTD.
    Inventors: Michihiro Takii, Masaaki Hanebuchi, Noriji Kawai
  • Patent number: RE48428
    Abstract: Light diffusing optical fibers for use in illumination applications and which have a uniform color gradient that is angularly independent are disclosed herein along with methods for making such fibers. The light diffusing fibers are composed of a silica-based glass core that is coated with a number of layers including both a scattering layer and a phosphor layer.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: February 9, 2021
    Assignee: CORNING INCORPORATED
    Inventors: Stephan Lvovich Logunov, Paul John Shustack