Patents Assigned to Brien Holden Vision Diagnostics
  • Patent number: 9579018
    Abstract: An ocular fundus camera system and an associated methodology. The system includes (a) an image sensor disposed along a fundus-image reflection path adjacent that path's downstream end, and in optical communication with light carried in this path, (b) an aperture centered on the reflection path's long axis, operatively associated with, and stationary with respect to, the sensor at a location which is upstream from the sensor, and (c), for accomplishing (1) precision fundus-image focusing on the sensor, and additionally (2) autorefraction, optical, light-content shifting structure, operable selectively for producing, within that portion of the reflection path which is disposed downstream from the shifting structure, relative trans-axial displacement solely of any non-collimated light carried in that portion of the main path which is disposed upstream from the shifting structure.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 28, 2017
    Assignee: Brien Holden Vision Diagnostics, Inc.
    Inventors: Tom N. Cornsweet, Paul R. Peterson
  • Publication number: 20160213249
    Abstract: A fundus camera for photographing a fundus of an eye that includes a plurality of light sources with differing frequencies for illuminating the fundus, a plurality of fixation lights configured to orient the fundus in varying positions, and an imaging sensor. The fundus camera further includes at least one processor configured to cause the illumination of the plurality of light sources and the plurality of fixation lights in a predetermined pattern to obtain a plurality of narrow bandwidth images of the fundus and to manipulate and stitch the resulting narrow bandwidth images into a composite color image.
    Type: Application
    Filed: September 5, 2014
    Publication date: July 28, 2016
    Applicant: Brien Holden Vision Diagnostics
    Inventors: Tom N. Cornsweet, Paul Peterson, Kenneth W. Chapman, Frank George Evans
  • Patent number: 9247876
    Abstract: An ocular fundus camera system and an associated methodology. The system includes (a) an image sensor disposed along a fundus-image reflection path adjacent that path's downstream end, and in optical communication with light carried in this path, (b) an aperture centered on the reflection path's long axis, operatively associated with, and stationary with respect to, the sensor at a location which is upstream from the sensor, and (c), for accomplishing (1) precision fundus-image focusing on the sensor, and additionally (2) autorefraction, optical, light-content shifting structure, operable selectively for producing, within that portion of the reflection path which is disposed downstream from the shifting structure, relative trans-axial displacement solely of any non-collimated light carried in that portion of the main path which is disposed upstream from the shifting structure.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: February 2, 2016
    Assignee: Brien Holden Vision Diagnostics, Inc.
    Inventors: Tom N. Cornsweet, Paul R. Peterson
  • Patent number: 8639306
    Abstract: An eye-property monitoring system and method for performing the steps of (1) illuminating the eye from at least one light source whose wavelength interacts with internal eye properties in an optically active manner, (2) controlling, to make known and stable, the operating-power/light-output level of the source, (3) by such illuminating, producing light-source eye reflections including (a) multiple internal reflections within the outer structure of the eye, and (b) linked with those internal reflections at least one resulting outbound reflection, (4) monitoring the outbound-reflection to detect therein the reflection level associated with the at least one source, and (5) associating such detected reflection level as an indication of certain eye properties, such as aqueous glucose concentration.
    Type: Grant
    Filed: February 4, 2012
    Date of Patent: January 28, 2014
    Assignee: Brien Holden Vision Diagnostics, Inc.
    Inventor: Tom N. Cornsweet