Patents by Inventor Alexander Shpunt

Alexander Shpunt 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).

  • Publication number: 20200158831
    Abstract: An electro-optical device includes a laser light source, which is configured to emit at least one beam of light. A beam steering device is configured to transmit and scan the at least one beam across a target scene. In an array of sensing elements, each sensing element is configured to output a signal indicative of incidence of photons on the sensing element. Light collection optics are configured to image the target scene scanned by the transmitted beam onto the array, wherein the beam steering device scans the at least one beam across the target scene with a spot size and scan resolution that are smaller than a pitch of the sensing elements. Circuitry is coupled to actuate the sensing elements only in a selected region of the array and to sweep the selected region over the array in synchronization with scanning of the at least one beam.
    Type: Application
    Filed: December 15, 2019
    Publication date: May 21, 2020
    Inventors: Cristiano L. Niclass, Alexander Shpunt, Gennadiy A. Agranov, Matthew C. Waldon, Mina A. Rezk, Thierry Oggier
  • Patent number: 10636155
    Abstract: A method for depth mapping includes acquiring first depth data with respect to an object using a first depth mapping technique and providing first candidate depth coordinates for a plurality of pixels, and acquiring second depth data with respect to the object using a second depth mapping technique, different from the first depth mapping technique, and providing second candidate depth coordinates for the plurality of pixels. A weighted voting process is applied to the first and second depth data in order to select one of the candidate depth coordinates at each pixel. A depth map of the object is output, including the selected one of the candidate depth coordinates at each pixel.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: April 28, 2020
    Assignee: APPLE INC.
    Inventors: Alexander Shpunt, Gerard Medioni, Daniel Cohen, Erez Sali, Ronen Deitch
  • Patent number: 10634843
    Abstract: An optoelectronic device includes a substrate, having a recess formed therein. An optical isolator is mounted in the recess. A laser includes a stack of epitaxial layers on the substrate and emits a beam of radiation toward the recess along a direction parallel to a surface of the substrate. A waveguide directs the beam emitted by the laser into the optical isolator.
    Type: Grant
    Filed: February 10, 2019
    Date of Patent: April 28, 2020
    Assignee: APPLE INC.
    Inventors: Igal I. Bayn, Andrew J. Sutton, Alexander Shpunt, Jason S. Pelc, Mark A. Arbore
  • Patent number: 10634770
    Abstract: Optical systems that may, for example, be used in remote sensing systems, for example in systems that implement combining laser pulse transmission in LiDAR and that include dual transmit and receive systems. A dual receiver system may include a receiver including an optical system with a relatively small aperture and wide field of view for capturing reflected light from short-range (e.g., <20 meters) objects, and a receiver that includes an optical system with a relatively large aperture and small field of view for capturing reflected light from long-range (e.g., >20 meters) objects. The optical systems may refract the reflected light to photodetectors (e.g., single photo-avalanche detectors (SPADs)) that capture the light. Light captured at the photodetectors may, for example, be used to determine range information for objects or surfaces in the environment.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: April 28, 2020
    Assignee: Apple Inc.
    Inventors: Chandra S. Kakani, Alexander Shpunt, Mina A. Rezk, Robert S. Upton, Yuval Gerson
  • Patent number: 10608002
    Abstract: A system for object reconstruction includes an illuminating unit, comprising a light source and a generator of a non-periodic pattern. A diffractive optical element (DOE) is disposed in an optical path of illuminating light propagating from the illuminating unit toward an object, thereby projecting the non-periodic pattern onto an object. An imaging unit detects a light response of an illuminated region and generating image data indicative of the object within the projected pattern. A processor reconstructs a three-dimensional (3D) map of the object responsively to a shift of the pattern in the image data relative to a reference image of the pattern.
    Type: Grant
    Filed: June 2, 2019
    Date of Patent: March 31, 2020
    Assignee: Apple Inc.
    Inventors: Zeev Zalevsky, Alexander Shpunt, Aviad Maizels, Javier Garcia
  • Patent number: 10609357
    Abstract: Imaging apparatus includes an illumination assembly, including a plurality of radiation sources and projection optics, which are configured to project radiation from the radiation sources onto different, respective regions of a scene. An imaging assembly includes an image sensor and objective optics configured to form an optical image of the scene on the image sensor, which includes an array of sensor elements arranged in multiple groups, which are triggered by a rolling shutter to capture the radiation from the scene in successive, respective exposure periods from different, respective areas of the scene so as to form an electronic image of the scene. A controller is coupled to actuate the radiation sources sequentially in a pulsed mode so that the illumination assembly illuminates the different, respective areas of the scene in synchronization with the rolling shutter.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: March 31, 2020
    Assignee: APPLE INC.
    Inventors: Zafrir Mor, Alexander Shpunt
  • Publication number: 20200096615
    Abstract: An optical device includes a transmitter, which emits a beam of optical radiation, and a receiver, which includes a detector configured to output a signal in response to the optical radiation. An active area of the detector has a first dimension along a first axis and a second dimension, which is less than the first dimension, along a second axis perpendicular to the first axis. An anamorphic lens, which collects and focuses the optical radiation onto the active area of the detector, has a first focal length in a first plane containing the first axis and a second focal length, greater than the first focal length, in a second plane containing the second axis. A scanner scans the beam across a target scene in a scan direction that is aligned with the first axis, and directs the optical radiation that is reflected from the target scene toward the receiver.
    Type: Application
    Filed: April 18, 2019
    Publication date: March 26, 2020
    Inventors: Robert S. Upton, Alexander Shpunt, Andrew J. Sutton, Chandra S. Kakani, Yuval Gerson
  • Patent number: 10557943
    Abstract: Optical systems that may, for example, be used in light ranging and detection (LiDAR) applications, for example in systems that implement combining laser pulse transmission in LiDAR and that include dual transmit and receive systems. Receiver components of a dual receiver system in LiDAR applications may include a medium range (50 meters or less) receiver optical system with a medium entrance pupil and small F-number and with a medium to wide field of view. The optical system may utilize optical filters, scanning mirrors, and a nominal one-dimensional SPAD (or SPADs) to increase the probability of positive photon events.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: February 11, 2020
    Assignee: Apple Inc.
    Inventors: Robert S. Upton, Chandra S. Kakani, Alexander Shpunt, Yuval Gerson
  • Publication number: 20200012106
    Abstract: A Predictive, Foveated Virtual Reality System may capture views of the world around a user using multiple resolutions. The Predictive, Foveated Virtual Reality System may include one or more cameras configured to capture lower resolution image data for a peripheral field of view while capturing higher resolution image data for a narrow field of view corresponding to a user's line of sight. Additionally, the Predictive, Foveated Virtual Reality System may also include one or more sensors or other mechanisms, such as gaze tracking modules or accelerometers, to detect or track motion. A Predictive, Foveated Virtual Reality System may also predict, based on a user's head and eye motion, the user's future line of sight and may capture image data corresponding to a predicted line of sight. When the user subsequently looks in that direction the system may display the previously captured (and augmented) view.
    Type: Application
    Filed: June 21, 2019
    Publication date: January 9, 2020
    Applicant: Apple Inc.
    Inventor: Alexander Shpunt
  • Patent number: 10514148
    Abstract: An illumination assembly includes a light source, which is configured to emit optical radiation. A transparency containing a plurality of micro-lenses, which are arranged in a non-uniform pattern and are configured to focus the optical radiation to form, at a focal plane, respective focal spots in the non-uniform pattern. Optics are configured to project the non-uniform pattern of the focal spots from the focal plane onto an object.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: December 24, 2019
    Assignee: APPLE INC.
    Inventors: Barak Freedman, Alexander Shpunt, Meir Machlin, Yoel Arieli
  • Patent number: 10506148
    Abstract: Optical apparatus includes a semiconductor substrate and one or more radiation sources, mounted on a surface of the substrate and configured to emit optical radiation. A scanning mirror is mounted on the substrate and is configured to scan the reflected optical radiation over a predetermined angular range in a direction that is angled away from the surface.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: December 10, 2019
    Assignee: Apple Inc.
    Inventors: Israel Petronius, Zafrir Mor, Mordehai Margalit, Benny Pesach, Alexander Shpunt
  • Patent number: 10488652
    Abstract: Optical scanning apparatus includes a triangular prism, having first and second side faces and a base. A transmitter directs a beam of optical radiation into the prism through the first side face, which refracts the beam so that the optical radiation is incident on and reflects from the base within the prism at a reflection angle that is greater than a total internal reflection (TIR) angle of the prism and exits the prism through the second side face. At least one scanning mirror is positioned to intercept and reflect the beam back into the prism while scanning the beam over an angular range selected such that after refraction of the scanned beam at the second side face, the scanned beam is incident on the base at a transmission angle that is less than the TIR angle and is transmitted out of the prism through the base.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: November 26, 2019
    Assignee: APPLE INC.
    Inventors: Alexander Shpunt, Niv Gilboa, Robert Upton
  • Publication number: 20190324203
    Abstract: An optoelectronic device includes a substrate, having a recess formed therein. An optical isolator is mounted in the recess. A laser includes a stack of epitaxial layers on the substrate and emits a beam of radiation toward the recess along a direction parallel to a surface of the substrate. A waveguide directs the beam emitted by the laser into the optical isolator.
    Type: Application
    Filed: February 10, 2019
    Publication date: October 24, 2019
    Inventors: Igal I. Bayn, Andrew J. Sutton, Alexander Shpunt, Jason S. Pelc, Mark A. Arbore
  • Publication number: 20190319036
    Abstract: A system for object reconstruction includes an illuminating unit, comprising a light source and a generator of a non-periodic pattern. A diffractive optical element (DOE) is disposed in an optical path of illuminating light propagating from the illuminating unit toward an object, thereby projecting the non-periodic pattern onto an object. An imaging unit detects a light response of an illuminated region and generating image data indicative of the object within the projected pattern. A processor reconstructs a three-dimensional (3D) map of the object responsively to a shift of the pattern in the image data relative to a reference image of the pattern.
    Type: Application
    Filed: June 2, 2019
    Publication date: October 17, 2019
    Inventors: Zeev Zalevsky, Alexander Shpunt, Aviad Maizels, Javier Garcia
  • Publication number: 20190317314
    Abstract: A scanning device includes a base containing one or more rotational bearings disposed along a gimbal axis. A gimbal includes a shaft that fits into the rotational bearings so that the gimbal rotates about the gimbal axis relative to the base. A mirror assembly includes a semiconductor substrate, which has been etched and coated to define a support, which is fixed to the gimbal, at least one mirror, contained within the support, and a connecting member connecting the at least one mirror to the support and defining at least one mirror axis, about which the at least one mirror rotates relative to the support.
    Type: Application
    Filed: May 30, 2019
    Publication date: October 17, 2019
    Inventors: Raviv Erlich, Alexander Shpunt, Yuval Gerson
  • Publication number: 20190285897
    Abstract: An augmented reality headset may include a reflective holographic combiner to direct light from a light engine into a user's eye while also transmitting light from the environment. The combiner and engine may be arranged to project light fields with different fields of view and resolution to match the visual acuity of the eye. The combiner may be recorded with a series of point to point holograms; one projection point interacts with multiple holograms to project light onto multiple eye box points. The engine may include a laser diode array, a distribution waveguide, scanning mirrors, and layered waveguides that perform pupil expansion and that emit wide beams of light through foveal projection points and narrower beams of light through peripheral projection points. The light engine may include focusing elements to focus the beams such that, once reflected by the holographic combiner, the light is substantially collimated.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 19, 2019
    Applicant: Apple Inc.
    Inventors: Richard J. Topliss, Paul J. Gelsinger-Austin, Thomas M. Gregory, Richard H. Tsai, Alexander Shpunt
  • Publication number: 20190278077
    Abstract: An optical device includes a laser light source configured to emit a collimated beam of light, and a scanning mirror, which is configured to reflect and scan the beam of light over a predefined angular range. The optical device further includes a volume holographic grating (VHG), which is positioned to receive and reflect the collimated beam emitted by the laser light source toward the scanning mirror by Bragg reflection at a predefined Bragg-angle, while transmitting the beam reflected from the scanning mirror over a part of the angular range that is outside a cone containing the Bragg-angle.
    Type: Application
    Filed: November 7, 2018
    Publication date: September 12, 2019
    Inventors: Andrew J. Sutton, Alexander Shpunt, Yuval Gerson
  • Publication number: 20190230341
    Abstract: A method for depth mapping includes providing depth mapping resources, including a radiation source, which projects optical radiation into a volume of interest containing an object, and a sensor, which senses the optical radiation reflected from the object. The volume of interest has a depth that varies with angle relative to the radiation source and the sensor. A depth map of the object is generated using the resources while applying at least one of the resources non-uniformly over the volume of interest, responsively to the varying depth as a function of the angle.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 25, 2019
    Inventors: Alexander Shpunt, Zafrir Mor
  • Patent number: 10345684
    Abstract: A method for projection includes generating a pattern of illumination, and positioning an array of lenses so as to project different, respective parts of the pattern onto a scene.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: July 9, 2019
    Assignee: APPLE INC.
    Inventors: Alexander Shpunt, Benny Pesach
  • Patent number: 10340280
    Abstract: A system for object reconstruction includes an illuminating unit, comprising a light source and a generator of a non-periodic pattern. A diffractive optical element (DOE) is disposed in an optical path of illuminating light propagating from the illuminating unit toward an object, thereby projecting the non-periodic pattern onto an object. An imaging unit detects a light response of an illuminated region and generating image data indicative of the object within the projected pattern. A processor reconstructs a three-dimensional (3D) map of the object responsively to a shift of the pattern in the image data relative to a reference image of the pattern.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: July 2, 2019
    Assignee: APPLE INC.
    Inventors: Zeev Zalevsky, Alexander Shpunt, Aviad Maizels, Javier Garcia