Patents by Inventor Alexander Plopski

Alexander Plopski 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: 20260195979
    Abstract: Examples described herein relate to hand-based light estimation for extended reality (XR). An image sensor of an XR device is used to obtain an image of a hand in a real-world environment. At least part of the image is processed to detect a pose of the hand. One of a plurality of machine learning models is selected based on the detected pose. At least part of the image is processed via the machine learning model to obtain estimated illumination parameter values associated with the hand. The estimated illumination parameter values are used to render virtual content to be presented by the XR device.
    Type: Application
    Filed: March 3, 2026
    Publication date: July 9, 2026
    Inventors: David Mandl, Alexander Plopski
  • Patent number: 12674986
    Abstract: A head-wearable extended reality (XR) device includes a display arrangement. The display arrangement has a display to display virtual content, and also has one or more optical elements to direct the virtual content along an optical path to an eye of a user of the XR device. The virtual content is presented in a virtual content field of view. The display arrangement further includes an adjustment mechanism to alter the optical path so as to adjust the virtual content field of view between at least two display modes.
    Type: Grant
    Filed: April 16, 2024
    Date of Patent: July 7, 2026
    Assignee: Snap Inc.
    Inventors: Alexander Plopski, Christoph Ebner
  • Patent number: 12602863
    Abstract: Examples described herein relate to hand-based light estimation for extended reality (XR). An image sensor of an XR device is used to obtain an image of a hand in a real-world environment. At least part of the image is processed to detect a pose of the hand. One of a plurality of machine learning models is selected based on the detected pose. At least part of the image is processed via the machine learning model to obtain estimated illumination parameter values associated with the hand. The estimated illumination parameter values are used to render virtual content to be presented by the XR device.
    Type: Grant
    Filed: March 13, 2024
    Date of Patent: April 14, 2026
    Assignee: Snap Inc.
    Inventors: David Mandl, Alexander Plopski
  • Patent number: 12596260
    Abstract: Systems and methods described herein relate to a near-eye display using a pinhole aperture array. In some examples, a near-eye display system includes a ray-limiting structure to provide a pinhole aperture array with a plurality of apertures. The plurality of apertures can each have a shape defined by radially extending elements. Examples also describe extended reality (XR) devices including such a near-eye display system and methods utilizing the near-eye display system.
    Type: Grant
    Filed: April 10, 2025
    Date of Patent: April 7, 2026
    Assignee: Snap Inc.
    Inventors: Alexander Plopski, Xiaodan Hu
  • Patent number: 12512026
    Abstract: A head-wearable extended reality device includes a display arrangement mounted to a frame. The display arrangement includes a first display layer, a second display layer, and a light source that is arranged to illuminate the first display layer and the second display layer. At least one of the first display layer or the second display layer is selectively displaceable relative to the frame. One or more processors are provided to control the display arrangement such that the light source is deactivated during displacement of the first display layer or the second display layer relative to the frame.
    Type: Grant
    Filed: August 28, 2024
    Date of Patent: December 30, 2025
    Assignee: Snap Inc.
    Inventors: Christoph Ebner, Alexander Plopski, Dieter Schmalstieg
  • Publication number: 20250321424
    Abstract: A head-wearable extended reality (XR) device includes a display arrangement. The display arrangement has a display to display virtual content, and also has one or more optical elements to direct the virtual content along an optical path to an eye of a user of the XR device. The virtual content is presented in a virtual content field of view. The display arrangement further includes an adjustment mechanism to alter the optical path so as to adjust the virtual content field of view between at least two display modes.
    Type: Application
    Filed: April 16, 2024
    Publication date: October 16, 2025
    Inventors: Alexander Plopski, Christoph Ebner
  • Publication number: 20250322597
    Abstract: A head-wearable extended reality (XR) device includes an optical assembly. The optical assembly has a display and an optical element. The display is provided to display virtual content to a user of the XR device. The optical element is provided to direct the virtual content from the display along an optical path to an eye of the user. The optical element includes a first portion and a second portion. The first portion provides a first focus distance that corresponds to a first viewing zone of the display. The second portion provides a second focus distance that differs from the first focus distance and corresponds to a second viewing zone of the display.
    Type: Application
    Filed: April 16, 2024
    Publication date: October 16, 2025
    Inventors: Alexander Plopski, Christoph Ebner
  • Publication number: 20250292493
    Abstract: Examples described herein relate to hand-based light estimation for extended reality (XR). An image sensor of an XR device is used to obtain an image of a hand in a real-world environment. At least part of the image is processed to detect a pose of the hand. One of a plurality of machine learning models is selected based on the detected pose. At least part of the image is processed via the machine learning model to obtain estimated illumination parameter values associated with the hand. The estimated illumination parameter values are used to render virtual content to be presented by the XR device.
    Type: Application
    Filed: March 13, 2024
    Publication date: September 18, 2025
    Inventors: David Mandl, Alexander Plopski
  • Publication number: 20240420606
    Abstract: A head-wearable extended reality device includes a display arrangement mounted to a frame. The display arrangement includes a first display layer, a second display layer, and a light source that is arranged to illuminate the first display layer and the second display layer. At least one of the first display layer or the second display layer is selectively displaceable relative to the frame. One or more processors are provided to control the display arrangement such that the light source is deactivated during displacement of the first display layer or the second display layer relative to the frame.
    Type: Application
    Filed: August 28, 2024
    Publication date: December 19, 2024
    Inventors: Christoph Ebner, Alexander Plopski, Dieter Schmalstieg
  • Patent number: 12106688
    Abstract: A head-wearable extended reality (XR) device comprises a frame and a light field display arrangement mounted to the frame. The light field display arrangement comprises a first display layer and a second display layer. At least one of the first display layer or the second display layer may be selectively displaceable relative to the frame.
    Type: Grant
    Filed: May 15, 2023
    Date of Patent: October 1, 2024
    Assignee: Snap Inc.
    Inventors: Christoph Ebner, Alexander Plopski, Dieter Schmalstieg