Patents by Inventor David Kessler

David Kessler 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: 20260079344
    Abstract: A compact augmented reality (AR) display system is described herein. The AR display system includes an eyeglass frame and a pair of near-eye pupil forming catadioptric optical engines mounted to the eyeglass frame. The pair of near-eye pupil forming catadioptric optical engines are mounted to the eyeglass frame and spaced along the longitudinal axis. Each of the near-eye pupil forming catadioptric optical engines includes an image generator forming a 2D image, an optical imaging assembly, and an optical image relay assembly, which includes the image generator and the lenses or other optics to present the image correctly to the user. The pair of near-eye pupil forming catadioptric optical engines enable viewing the 2D image binocularly in 3D.
    Type: Application
    Filed: September 17, 2024
    Publication date: March 19, 2026
    Inventors: David KESSLER, Michael H. FREEMAN, Mitchael C. FREEMAN, Jordan BOSS, Behnam RAFIEE
  • Publication number: 20260036804
    Abstract: An extended reality (XR) headset assembly is described herein. The XR headset assembly includes a headset adapted to be worn by a user and a display system. The display system includes an imaging equipment housing that is coupled to the headset and a pair of pancake lens assemblies extending from a bottom outer surface of the imaging equipment housing. The pair of pancake lens assemblies includes a left-eye pancake lens assembly positioned adjacent a left eye of the user and a right-eye pancake lens assembly positioned adjacent a right eye of the user. Each pancake lens assembly is pivotably coupled to the support frame and includes a lens housing containing an image generator and an imaging lens assembly positioned between the image generator and the user's eye along an optical axis.
    Type: Application
    Filed: August 1, 2025
    Publication date: February 5, 2026
    Inventors: Michael A. H. Freeman, J.D., Mitchael C. Freeman, Jordan Boss, Montgomery Freeman, Victoria McArtor, Simon Prosser, Benham Rafiee, Dillon Cornell, Ian Oswald, David Kessler, Steven Von der Porten
  • Publication number: 20260029649
    Abstract: An extended reality (XR) headset assembly is described herein. The XR headset assembly includes a headset adapted to be worn by a user. A display system is coupled to the imaging equipment housing and is configured to display a display screen including computer-generated images thereon. A digital optical loupes imaging assembly is mounted above the display system and includes a pair of 3-dimensional (3D) imaging sensor assemblies spaced along the transverse axis and an illumination assembly positioned between the 3D imaging sensor assemblies. A controller is coupled to the digital optical loupes imaging assembly and the display system, and includes one or more processors programmed to display computer-generated images on the display system using image data received from the digital optical loupes imaging assembly.
    Type: Application
    Filed: July 29, 2025
    Publication date: January 29, 2026
    Inventors: Michael H. Freeman, Mitchael C. Freeman, Jordan Boss, Montgomery H.F. Freeman, Victoria McARTOR, Simon Prosser, Behnam Rafiee, Dillon Cornell, Ian Oswald, David Kessler, Steven Von der porten
  • Publication number: 20250380869
    Abstract: An apparatus for obtaining an image of a retina is described herein. The apparatus includes an optical relay that defines an optical path and is configured to relay an image of the iris along the optical path to a pupil, a shutter is disposed at the pupil and configured to define at least a first shutter aperture for control of light transmission through the pupil position, a tube lens disposed to direct light from the shutter aperture to an image sensor, and a prismatic input port disposed between the shutter and the tube lens and configured to combine, onto the optical path, light from the relay with light conveyed along a second light path that is orthogonal to the optical path.
    Type: Application
    Filed: June 11, 2025
    Publication date: December 18, 2025
    Inventors: David Kessler, Michael H. Freeman, Mitchael C. Freeman, Simon Prosser, Jordan Boss, Steven Yeager
  • Patent number: 12462924
    Abstract: An augmented reality (AXR) visualization system is described herein. The AXR visualization system includes an AXR headset to be worn by a user, a display monitor positioned in view of the user and a support arm system including a first support arm and a second support arm. The first and second support arms are orientated such that the display monitor is visible to the user between the first and second support arms. A 3D digital viewport coupled to the first support arm. A 3D digital microscope coupled to the second support arm. A computer system including a processor programmed to receive and process images from the 3D digital microscope and display the processed images on the 3D digital viewport, the AXR headset, and the display monitor.
    Type: Grant
    Filed: October 3, 2024
    Date of Patent: November 4, 2025
    Assignee: RAYTRX, LLC
    Inventors: Michael Hayes Freeman, Mitchael C. Freeman, Jordan Boss, Montgomery H.F. Freeman, Thomas A. Finley, Linda Lam, Victoria M. McArtor, Steven Yeager, David Kessler, Ian Oswald
  • Patent number: 12455454
    Abstract: A wearable display apparatus is described herein. The wearable display apparatus includes an image generator that forms a 2D image, a partially transmissive mirror having a curved reflective surface, a beam splitter disposed to reflect light toward the curved mirror surface, and an optical image relay that is configured to conjugate the formed 2D image at the image generator to a curved focal surface of the partially transmissive mirror.
    Type: Grant
    Filed: April 29, 2024
    Date of Patent: October 28, 2025
    Assignee: RAYTRX, LLC
    Inventors: David Kessler, Michael H. Freeman, Jordan Boss, Mitchael C. Freeman, Steven Yeager
  • Patent number: 12455456
    Abstract: A wearable display apparatus is described herein. The wearable display apparatus includes a headset, a left-eye optical system, a right-eye optical system, and an inter-pupil distance (IPD) adjustment system coupled to the headset, the left-eye optical system, and the right-eye optical system for adjusting an inter-pupil spacing between the left-eye optical system and the right-eye optical system.
    Type: Grant
    Filed: June 26, 2024
    Date of Patent: October 28, 2025
    Assignee: RAYTRX, LLC
    Inventors: Michael H. Freeman, Jordan Boss, Mitchael C. Freeman, Behnam Rafiee, Andrew Mourn, David Kessler, Steven Yeager
  • Publication number: 20250255465
    Abstract: An endoscopy cannula assembly is described herein. The endoscopy cannula assembly includes a cannula extending along a longitudinal axis and a 3D imaging system positioned within the cannula. The 3D imaging system includes a pair of imaging modules orientated in an opposing mirrored relationship along the longitudinal axis. Each imaging module includes a camera sensor orientated along a first optical axis and an optical engine configured to receive light rays through an opening defined along a sidewall of the cannula along a second optical axis and direct the received light rays along the first optical axis towards the camera sensor.
    Type: Application
    Filed: February 7, 2025
    Publication date: August 14, 2025
    Inventors: David Kessler, Michael A. H. Freeman, Mitchael C. Freeman, Jordan Boss
  • Patent number: 12386181
    Abstract: A wearable display apparatus is described herein. The wearable display apparatus includes an image generator that forms a 2D image, a partially transmissive mirror having a curved focal surface and a partially transmissive curved reflective surface, a beam splitter, and an optical image relay positioned between the image generator and the beam splitter. The optical image relay includes a right-angle prism, a first plano-aspheric lens, a doublet positioned between the first plano-aspheric lens and the image generator, a meniscus singlet lens positioned between the doublet and the image generator, and a concave-plano field lens.
    Type: Grant
    Filed: January 8, 2024
    Date of Patent: August 12, 2025
    Assignee: RAYTRX, LLC
    Inventors: David Kessler, Michael H. Freeman
  • Patent number: 12349975
    Abstract: An apparatus for obtaining an image of a retina is described herein. The apparatus includes an optical relay that defines an optical path and is configured to relay an image of the iris along the optical path to a pupil, a shutter is disposed at the pupil and configured to define at least a first shutter aperture for control of light transmission through the pupil position, a tube lens disposed to direct light from the shutter aperture to an image sensor, and a prismatic input port disposed between the shutter and the tube lens and configured to combine, onto the optical path, light from the relay with light conveyed along a second light path that is orthogonal to the optical path.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: July 8, 2025
    Assignee: RAYTRX, LLC
    Inventors: David Kessler, Michael H. Freeman, Mitchael C. Freeman, Simon Prosser, Jordan Boss, Steven Yeager
  • Publication number: 20250166797
    Abstract: An augmented reality (AXR) visualization system is described herein. The AXR visualization system includes an AXR headset to be worn by a user, a display monitor positioned in view of the user and a support arm system including a first support arm and a second support arm. The first and second support arms are orientated such that the display monitor is visible to the user between the first and second support arms. A 3D digital viewport coupled to the first support arm. A 3D digital microscope coupled to the second support arm. A computer system including a processor programmed to receive and process images from the 3D digital microscope and display the processed images on the 3D digital viewport, the AXR headset, and the display monitor.
    Type: Application
    Filed: October 3, 2024
    Publication date: May 22, 2025
    Inventors: Michael Hayes Freeman, Mitchael C. Freeman, Jordan Boss, Montgomery H.F. Freeman, Thomas A. Finley, Linda Lam, Victoria M. McArtor, Steven Yeager, David Kessler, Ian Oswald
  • Patent number: 12228741
    Abstract: A compact augmented reality (AR) display system is described herein. The AR display system includes an eyeglass frame and a pair of near-eye pupil forming catadioptric optical engines mounted to the eyeglass frame. The pair of near-eye pupil forming catadioptric optical engines are mounted to the eyeglass frame and spaced along the longitudinal axis. Each of the near-eye pupil forming catadioptric optical engines includes an image generator forming a 2D image, an optical imaging assembly, and an optical image relay assembly, which includes the image generator and the lenses or other optics to present the image correctly to the user. The pair of near-eye pupil forming catadioptric optical engines enable viewing the 2D image binocularly in 3D.
    Type: Grant
    Filed: December 6, 2023
    Date of Patent: February 18, 2025
    Assignee: RAYTRX, LLC
    Inventors: David Kessler, Michael H. Freeman, Mitchael C. Freeman, Jordan Boss, Behnam Rafiee
  • Patent number: 12211611
    Abstract: An augmented/extended reality (AXR) headset for use with a surgery visualization system is described herein. The AXR headset includes a wearable support frame, one or more forward-facing cameras pivotably mounted to the wearable support frame, an imaging system mounted to the wearable support frame, and a control logic processor coupled to the one or more front facing cameras and the image generator, and programmed to execute an algorithm including the steps of receiving image data from the one or more forward-facing cameras and operating the image generator to display the received image data onto the curved mirror.
    Type: Grant
    Filed: March 15, 2024
    Date of Patent: January 28, 2025
    Assignee: RAYTRX, LLC
    Inventors: Michael Hayes Freeman, Mitchael C. Freeman, Jordan Boss, Brian Santee, Montgomery H. F. Freeman, Thomas A. Finley, Linda Lam, Victoria M. McArtor, Steven Yeager, David Kessler, Ian Oswald
  • Publication number: 20250017464
    Abstract: An apparatus for obtaining an image of a cornea is described herein. The apparatus includes a stereomicroscope configured to obtain and display 2D or 3D image content of an eye of a patient, with pupil imaging optics that form a pupil along an optical axis and a shutter configured to form a pattern of one or more apertures for light at the formed pupil, and an input prism is configured to direct light to or from the optical axis, with optics configured to convey light along the optical axis to a sensor.
    Type: Application
    Filed: June 21, 2024
    Publication date: January 16, 2025
    Inventors: David Kessler, Michael H. Freeman, Mitchael C. Freeman, Simon Prosser, Jordan Boss, Steven Yeager, Cuong Vu, Linda Lam, Montgomery Freeman, Steven Von der Porten, Dillon Cornell
  • Publication number: 20250020930
    Abstract: A wearable display apparatus is described herein. The wearable display apparatus includes a headset, a left-eye optical system, a right-eye optical system, and an inter-pupil distance (IPD) adjustment system coupled to the headset, the left-eye optical system, and the right-eye optical system for adjusting an inter-pupil spacing between the left-eye optical system and the right-eye optical system.
    Type: Application
    Filed: June 26, 2024
    Publication date: January 16, 2025
    Inventors: Michael H. Freeman, Jordan Boss, Mitchael C. Freeman, Behnam Rafiee, Andrew Mourn, David Kessler, Steven Yeager
  • Publication number: 20240377639
    Abstract: A wearable display apparatus is described herein. The wearable display apparatus includes an image generator that forms a 2D image, a partially transmissive mirror having a curved reflective surface, a beam splitter disposed to reflect light toward the curved mirror surface, and an optical image relay that is configured to conjugate the formed 2D image at the image generator to a curved focal surface of the partially transmissive mirror.
    Type: Application
    Filed: April 29, 2024
    Publication date: November 14, 2024
    Inventors: David Kessler, Michael H. Freeman, Jordan Boss, Mitchael C. Freeman, Steven Yeager
  • Patent number: 12142367
    Abstract: A surgery visualization system is described herein. The surgery visualization system includes a display monitor positioned in view of a surgeon and a support arm system including a first support arm and a second support arm. The first and second support arms are orientated such that the display monitor is visible to the surgeon between the first and second support arms. A 3D digital viewport coupled to the first support arm. A 3D digital microscope coupled to the second support arm. A computer system including a processor programmed to receive and process images from the 3D digital microscope and display the processed images on the 3D digital viewport and the display monitor.
    Type: Grant
    Filed: September 6, 2023
    Date of Patent: November 12, 2024
    Assignee: RAYTRX, LLC
    Inventors: Michael Hayes Freeman, Mitchael C. Freeman, Jordan Boss, Montgomery H. F. Freeman, Thomas A. Finley, Linda Lam, Victoria M. McArtor, Steven Yeager, David Kessler, Ian Oswald
  • Publication number: 20240310631
    Abstract: A wearable display apparatus is described herein. The wearable display apparatus includes an image generator that forms a 2D image, a partially transmissive mirror having a curved focal surface and a partially transmissive curved reflective surface, a beam splitter, and an optical image relay positioned between the image generator and the beam splitter. The optical image relay includes a right-angle prism, a first plano-aspheric lens, a doublet positioned between the first plano-aspheric lens and the image generator, a meniscus singlet lens positioned between the doublet and the image generator, and a concave-plano field lens.
    Type: Application
    Filed: January 8, 2024
    Publication date: September 19, 2024
    Inventors: David Kessler, Michael H. Freeman
  • Patent number: 12066633
    Abstract: A wearable display apparatus is described herein. The wearable display apparatus includes a headset, a left-eye optical system, a right-eye optical system, and an inter-pupil distance (IPD) adjustment system coupled to the headset, the left-eye optical system, and the right-eye optical system for adjusting an inter-pupil spacing between the left-eye optical system and the right-eye optical system.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: August 20, 2024
    Assignee: RAYTRX, LLC
    Inventors: Michael H. Freeman, Jordan Boss, Mitchael C. Freeman, Behnam Rafiee, Andrew Mourn, David Kessler, Steven Yeager
  • Patent number: 12062430
    Abstract: A surgery visualization theatre comprising: an augmented/extended reality (AXR) headset; a digital viewport mounted on a cobotic arm; a monitor mounted on a monitor cobotic arm; a camera subsystem mounted on a camera cobotic arm; and a frame with cobotic arms featuring intelligence and command and control for the system and visualization methodologies, where the digital viewport cobotic arm, the monitor cobotic arm, and the camera cobotic arm are mounted on the frame and the AXR headset is connected thereto.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: August 13, 2024
    Assignee: RAYTRX, LLC
    Inventors: Jeff Riggs, Michael Hayes Freeman, Mitchael C. Freeman, Jordan Boss, Brian Santee, Montgomery H. F. Freeman, Thomas A. Finley, Linda Lam, Victoria M. McArtor, Steven Yeager, David Kessler, Ian Oswald