Patents by Inventor Bernard C. Kress

Bernard C. Kress has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10180769
    Abstract: A method of in-eye icon projection using an electronic device includes emitting light with a light source in response to detecting an image condition. The light is then projected onto a diffraction grating, and the diffraction grating, when illuminated with the light, produces image light of a fixed icon. An image of the fixed icon is formed in an eye of a user, and the image of the fixed icon occupies only part of the user's field of view. The image light has a limited divergence such that the image of the fixed icon is only viewable in a single user's field of view.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: January 15, 2019
    Assignee: GOOGLE LLC
    Inventors: Alex Olwal, Bernard C. Kress, Greg E. Priest-Dorman
  • Publication number: 20180252857
    Abstract: Embodiments are disclosed for an optical waveguide display configured for use with a near-eye display (NED) device. In an embodiment the waveguide display includes a light-transmissive substrate and an optical coupling element configured to input light rays to the substrate or output light rays from the substrate, the optical coupling element configured to deflect a plurality of wavelengths of an incident light ray collinearly for propagation within the light-transmissive substrate through total internal reflection (TIR). The optical coupling element can include a pattern of nano-structures that collectively form a metasurface on the substrate.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 6, 2018
    Inventors: Eliezer Glik, Hagar Edelstain, Bernard C. Kress
  • Patent number: 10031339
    Abstract: An optical combiner includes an off-axis spatially multiplexed lens optically coupled to receive image light and direct the image light in an eye-ward direction. The off-axis spatially multiplexed lens includes a first sub-lens multiplexed with a second sub-lens. The first sub-lens and the sub-lens are configured to direct the image light to designated eyeward-regions.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: July 24, 2018
    Assignee: Google LLC
    Inventors: Bernard C. Kress, Greg E. Priest-Dorman
  • Publication number: 20180203231
    Abstract: The disclosed embodiments include a display device including substantially transparent substrates, a lenslet array including substantially transparent lenslets disposed between the plurality of transparent substrates, and light sources disposed between the substantially transparent substrates. The light sources are operable to emit light towards respective lenslets of the lenslet array, and the lenslet array is configured to render a digital image by reflecting the emitted light towards the light sources.
    Type: Application
    Filed: April 26, 2017
    Publication date: July 19, 2018
    Inventors: Eliezer GLIK, Cynthia BELL, Bernard C. KRESS
  • Patent number: 9915823
    Abstract: An eyepiece for a head wearable display includes a lightguide component for guiding display light and emitting the display light along at a viewing region. The light guide component includes an input surface oriented to receive the display light into the lightguide component at the peripheral location, a first folding surface disposed to reflect the display light received through the input surface, a second folding surface disposed to reflect the display light received from the first folding surface, an eye-ward facing surface disposed opposite to the second folding surface to reflect the display light received from the second folding surface, and a curved reflective surface having reflective optical power disposed at the viewing region to receive the display light reflected from the eye-ward facing surface and to reflect the display light for emission out through the eye-ward facing surface.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: March 13, 2018
    Assignee: Google LLC
    Inventors: Bernard C. Kress, Ehsan Saeedi, Adam E. Norton, Edouard Schmidtlin
  • Publication number: 20180003972
    Abstract: Examples are disclosed that relate to mixed reality display devices. One example provides a head-mounted display device comprising, a display, a lens system, and a curved Fresnel combiner. The curved Fresnel combiner is configured to direct light received from the display via the lens system toward an eyebox, and is at least partially transmissive to background light.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Inventors: Bernard C. Kress, R. Andrew Wall
  • Publication number: 20170235145
    Abstract: A Head Mounted Display (“HMD”) includes a display module to generate image light, an optical combiner, a stacked switchable lens, and control circuitry. The optical combiner combines the image light with external scene light. The optical combiner includes a reflective element coupled to receive the image light and direct the image light in an eye-ward direction. The stacked switchable lens is optically coupled to receive the image light. The stacked switchable lens includes at least a first switching optic and a second switching optic. The control circuitry is configured to selectively activate the first switching optic and the second switching optic. The first switching optic is configured to direct the image light toward a first eyeward region when activated by the control circuitry. The second switching optic is configured to direct the image light toward a second eyeward region when activated by the control circuitry.
    Type: Application
    Filed: May 1, 2017
    Publication date: August 17, 2017
    Inventors: Bernard C. Kress, Greg E. Priest-Dorman
  • Patent number: 9671612
    Abstract: A Head Mounted Display (“HMD”) includes a display module, an optical combiner, control circuitry, and a lens. The display module generates image light and the optical combiner is for combining the image light with external scene light. The lens is positioned to receive the image light. The lens is capable of dynamically changing at least one lens property of the lens. The control circuitry controls the lens to dynamically change at least one lens property of the lens.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: June 6, 2017
    Assignee: Google Inc.
    Inventors: Bernard C. Kress, Greg E. Priest-Dorman
  • Patent number: 9658453
    Abstract: An apparatus comprising a diffractive combiner having a front side, a rear surface, and an optical axis running substantially through the center of the diffractive combiner and normal to the back side. A display unit directs display light toward the back side of the diffractive combiner; the display unit positioned at a first angle relative to the optical axis, and the display light having a first range of wavelengths. An eye-tracking sensor receives eye-tracking radiation reflected by the back side of the diffractive combiner, the eye-tracking sensor positioned next to the display unit at a second angle relative to the optical axis, the second angle being different than the first angle and the eye-tracking radiation having a wavelength outside the first range of wavelengths. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: May 23, 2017
    Assignee: Google Inc.
    Inventors: Bernard C. Kress, Hayes S. Raffle
  • Publication number: 20170123207
    Abstract: A prescriptive see-through eyepiece includes a meniscus lens body and an optical combiner. The meniscus lens body has an external scene side with a convex curvature and an eye-ward side with a concave curvature. The optical combiner is disposed within the meniscus lens body to combine image light incident through the eye-ward side with external scene light incident through the external scene side into a combined image. The optical combiner is partially reflective and imparts substantially no lensing power to the external scene light passing through. The optical combiner along with the concave curvature of the eye-ward side are configured to impart prescriptive lensing to the image light while the convex curvature of the external scene side and the concave curvature of the eye-ward side are configured to impart the prescriptive lensing to the external scene light.
    Type: Application
    Filed: October 28, 2015
    Publication date: May 4, 2017
    Inventors: Bernard C. Kress, Adam E. Norton
  • Patent number: 9632312
    Abstract: An optical apparatus includes a first optical element having an eye-ward facing surface and an external world facing surface substantially opposite of the eye-ward facing surface. The optical apparatus also includes a diffractive optical element (“DOE”) disposed to substantially follow a curvature of the eye-ward facing surface of the first optical element. The DOE includes a partially reflective diffraction grating configured to direct a portion of image light in an eye-ward direction where the image light is incident through an eye facing side of the DOE. The curvature of the eye-ward facing surface of the first optical element has an optical power configured to collimate the image light within an eyebox sized area.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: April 25, 2017
    Assignee: Google Inc.
    Inventors: Ozan Cakmakci, Anurag Gupta, Bernard C. Kress
  • Patent number: 9551872
    Abstract: An optical combiner includes an off-axis spatially multiplexed lens optically coupled to receive image light and direct the image light in an eye-ward direction. The off-axis spatially multiplexed lens includes a first sub-lens multiplexed with a second sub-lens. The first sub-lens and the sub-lens are configured to direct the image light to designated eyeward-regions.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: January 24, 2017
    Assignee: Google Inc.
    Inventors: Bernard C. Kress, Greg E. Priest-Dorman
  • Publication number: 20160377871
    Abstract: An optical combiner includes an off-axis spatially multiplexed lens optically coupled to receive image light and direct the image light in an eye-ward direction. The off-axis spatially multiplexed lens includes a first sub-lens multiplexed with a second sub-lens. The first sub-lens and the sub-lens are configured to direct the image light to designated eyeward-regions.
    Type: Application
    Filed: August 22, 2016
    Publication date: December 29, 2016
    Inventors: Bernard C. Kress, Greg E. Priest-Dorman
  • Patent number: 9442291
    Abstract: An optical combiner for a head-wearable display includes an eyepiece body and a plurality of diffractive optical element (“DOE”) segments. The eyepiece body has an eye-ward side and an external scene side. The DOE segments are disposed within the eyepiece body and are at least partially reflective to image light incident through the eye-ward side of the eyepiece body and at least partially transmissive to external scene light incident through the external scene side of the eyepiece body. The DOE segments are disjoint from each other and each is disposed along a different disjoint surface within the eyepiece body that is oriented at a different angle relative to the other DOE segments. The plurality of DOE segments operate to magnify and reflect the image light incident from an off-axis position to an eyebox sized area.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: September 13, 2016
    Assignee: Google Inc.
    Inventors: Marc Andrew Martinez, Ehsan Saeedi, Bernard C. Kress
  • Patent number: 9341850
    Abstract: An optical apparatus for a see-through near-to-eye display includes a diffractive optical combiner, one or more refractive correction lenses, and a diffractive correction element. The diffractive optical combiner has an eye-ward side and an external scene side and includes a reflective diffraction grating that is at least partially reflective to image light incident through the eye-ward side and at least partially transmissive to external scene light incident through the external scene side. The one or more refractive correction lenses are disposed in an optical path of the image light to aid in pre-correcting aberrations induced in the image light after reflection off of the diffractive optical combiner. The diffractive correction element is disposed in the optical path of the image light to pre-compensate for lateral color aberrations induced in the image light after reflection off of the diffractive optical combiner.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: May 17, 2016
    Assignee: Google Inc.
    Inventors: Ozan Cakmakci, Anurag Gupta, Bernard C. Kress
  • Publication number: 20150212326
    Abstract: A Head Mounted Display (“HMD”) includes a display module, an optical combiner, control circuitry, and a lens. The display module generates image light and the optical combiner is for combining the image light with external scene light. The lens is positioned to receive the image light. The lens is capable of dynamically changing at least one lens property of the lens. The control circuitry controls the lens to dynamically change at least one lens property of the lens.
    Type: Application
    Filed: January 29, 2014
    Publication date: July 30, 2015
    Applicant: Google Inc.
    Inventors: Bernard C. Kress, Greg E. Priest-Dorman
  • Patent number: 9057826
    Abstract: An optical apparatus includes an optical combiner, an image lens, and an external scene lens. The optical combiner has an eye-ward side and an external scene side and includes a partially reflective diffraction grating that is at least partially reflective to image light incident through the eye-ward side and at least partially transmissive to external scene light incident through the external scene side. A first mount is positioned to hold the image lens in an optical path of the image light to apply a first corrective prescription to the image light. A second mount is positioned to hold an external scene lens over the external scene side of the optical combiner to apply a second corrective prescription to the external scene light. The optical combiner combines the image light with the scene light to form a combined image that is corrected according to the first and second corrective prescriptions.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: June 16, 2015
    Assignee: Google Inc.
    Inventors: Anurag Gupta, Greg E. Priest-Dorman, Bernard C. Kress
  • Publication number: 20130229712
    Abstract: An optical combiner includes a two-dimensional (“2D”) array of three-dimensional (“3D”) diffraction element shapes disposed in a first side of a base sandwich layer. Partially reflective elements coat each of the 3D diffraction element shapes. The partially reflective elements collectively form a reflective diffraction grating having magnifying optical power for image light incident on the reflective diffraction grating through an eye-ward side of the optical combiner. A planarization sandwich layer is disposed over the partially reflective elements and has an index of refraction substantially equal to that of the base sandwich layer such that external scene light incident through the external scene side passes through the optical combiner substantially without diffraction while the image light incident through the eye-ward side is reflected and magnified via the reflective diffraction grating.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 5, 2013
    Applicant: GOOGLE INC.
    Inventor: Bernard C. Kress
  • Patent number: 8044339
    Abstract: An optical encoder and method for measuring displacement information using an optical encoder uses an encoder member with multiple digital diffractive optic regions to optically diffract an incident beam of light to produce output beams of light having intensity distribution patterns, which are used to generate electrical signals that provide relative displacement information of the encoder member.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: October 25, 2011
    Assignee: Arcus Technology, Inc.
    Inventors: Christopher C. Chang, Bernard C. Kress
  • Patent number: 7595480
    Abstract: An optical encoder uses an encoder member with one or more digital diffractive optic regions to optically manipulate an incident beam of light to extract relative displacement information of the encoder member.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: September 29, 2009
    Assignee: Arcus Technology, Inc.
    Inventor: Bernard C. Kress