US 12,345,881 B2
Projection of an image in an extended reality device
Pex Tufvesson, Lund (SE); Carl Drougge, Malmö (SE); and Anders Berkeman, Lund (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 18/023,507
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Aug. 28, 2020, PCT No. PCT/EP2020/074157
§ 371(c)(1), (2) Date Feb. 27, 2023,
PCT Pub. No. WO2022/042859, PCT Pub. Date Mar. 3, 2022.
Prior Publication US 2024/0013480 A1, Jan. 11, 2024
Int. Cl. G02B 27/00 (2006.01); G02B 27/01 (2006.01); G06T 7/20 (2017.01); G06T 7/70 (2017.01); G06T 17/00 (2006.01)
CPC G02B 27/0093 (2013.01) [G02B 27/0172 (2013.01); G06T 7/20 (2013.01); G06T 7/70 (2017.01); G06T 17/00 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0187 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for controlling projection of an image in an extended reality device comprising an optical element, a display, and a motion tracker, wherein the optical element and/or the display are mounted movement flexible in the extended reality device, the method comprising the steps of:
obtaining motion information of the extended reality device from the motion tracker;
determining a compensating movement of the optical element and/or the display for projection of the image based on the obtained motion information of the extended reality device; and
controlling projection of the image by moving the optical element and/or the display based on the determined compensating movement, wherein
the projection comprises an extended reality scene,
the extended reality scene is rendered with a projected position and direction of a viewer's eyes, and
the projected position and direction are compared to the obtained motion information and compensated for.