US 12,455,454 B2
Wearable pupil-forming display apparatus
David Kessler, Rochester, NY (US); Michael H. Freeman, Tulsa, OK (US); Jordan Boss, Tulsa, OK (US); Mitchael C. Freeman, Tulsa, OK (US); and Steven Yeager, Tulsa, OK (US)
Assigned to RAYTRX, LLC, Tulsa, OK (US)
Filed by Raytrx, LLC, Tulsa, OK (US)
Filed on Apr. 29, 2024, as Appl. No. 18/649,746.
Application 18/649,746 is a continuation of application No. 18/123,448, filed on Mar. 20, 2023, granted, now 12,001,023.
Application 18/123,448 is a continuation of application No. 17/736,810, filed on May 4, 2022, granted, now 11,640,064, issued on Apr. 12, 2023.
Application 17/736,810 is a continuation of application No. 17/496,102, filed on Oct. 7, 2021, granted, now 11,353,710, issued on Jun. 7, 2022.
Application 17/496,102 is a continuation of application No. 17/389,484, filed on Jul. 30, 2021, granted, now 11,181,747, issued on Nov. 23, 2021.
Application 17/389,484 is a continuation of application No. 17/139,167, filed on Dec. 31, 2020, granted, now 11,112,611, issued on Sep. 7, 2021.
Claims priority of provisional application 63/060,343, filed on Aug. 3, 2020.
Prior Publication US 2024/0377639 A1, Nov. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 27/01 (2006.01); G02B 13/00 (2006.01); G02B 27/28 (2006.01); G02B 30/35 (2020.01); G02B 30/36 (2020.01); G06F 3/01 (2006.01); G06T 7/50 (2017.01); G09G 3/00 (2006.01); H04N 23/90 (2023.01)
CPC G02B 27/0172 (2013.01) [G02B 13/0025 (2013.01); G02B 13/0065 (2013.01); G02B 13/0095 (2013.01); G02B 27/0176 (2013.01); G02B 27/0179 (2013.01); G02B 27/283 (2013.01); G02B 27/286 (2013.01); G02B 30/35 (2020.01); G02B 30/36 (2020.01); G06F 3/013 (2013.01); G06T 7/50 (2017.01); G09G 3/007 (2013.01); G02B 2027/0123 (2013.01); G02B 2027/0134 (2013.01); G02B 2027/0138 (2013.01); G02B 2027/0159 (2013.01); G02B 2027/0187 (2013.01); G09G 2340/0407 (2013.01); H04N 23/90 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A wearable display apparatus comprising:
a headset including an optical module housing configured to be disposed above an eye of a viewer;
one or more front facing cameras mounted to the headset;
an image generator housed within the optical module housing and configured to form a 2D image;
a partially transmissive mirror disposed along a visual axis of the viewer and having a curved reflective surface;
a beam splitter disposed along the visual axis of the viewer between the eye of the viewer and the partially transmissive mirror to reflect light toward the curved mirror surface;
an optical image relay housed within the optical module housing and configured to conjugate the formed 2D image at the image generator to a curved focal surface of the partially transmissive mirror, wherein the curved focal surface is defined between the curved reflective surface of the partially transmissive mirror and the beam splitter, wherein the optical image relay comprises:
a prism having an input surface, an output surface, and a folding surface extending between the input and output surfaces and configured for folding an optical path for light generated by the image generator, wherein an aperture stop for the optical image relay lies within the prism;
a first plano-aspheric lens in optical contact against the prism input surface and configured to guide light from the image generator toward the folding surface; and
a second plano-aspheric lens in optical contact against the prism output surface and configured to direct the light towards the beam splitter;
wherein the optical image relay, curved mirror, and beam splitter are configured to form an exit pupil for viewing the 2D image superimposed on a portion of a visible object scene; 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 front facing cameras; and
operating the image generator to display the received image data onto the curved mirror.