US 12,474,581 B2
Free-form light field displays for VR/AR headsets
Brian Wheelwright, Sammamish, WA (US); Ying Geng, Bellevue, WA (US); and Kieran Connor Kelly, Seattle, WA (US)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Jun. 23, 2022, as Appl. No. 17/847,730.
Claims priority of provisional application 63/214,606, filed on Jun. 24, 2021.
Prior Publication US 2022/0413297 A1, Dec. 29, 2022
Int. Cl. G02B 27/01 (2006.01); G02B 27/00 (2006.01); G06F 3/01 (2006.01); G09F 9/30 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 27/0081 (2013.01); G02B 27/0093 (2013.01); G02B 27/0176 (2013.01); G06F 3/011 (2013.01); G09F 9/301 (2013.01); G02B 2027/0123 (2013.01); G02B 2027/0138 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0147 (2013.01); G02B 2027/0178 (2013.01); G02B 2027/0187 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for virtual reality imaging, comprising:
a pixel array including multiple pixels configured in a two-dimensional surface, each pixel providing multiple light beams forming an image provided to a user, wherein the two-dimensional surface of the pixel array is flat;
a first optical element configured to provide a central portion of a field of view for the image through an eyebox that limits a volume including a pupil of the user; and
a second optical element configured to provide a peripheral portion of the field of view for the image through the eyebox, wherein the second optical element includes a freeform lenslet array to provide a segmented view of the peripheral portion of the field of view, wherein the second optical element includes multiple lenslets selected from at least one of: a free form lenslet, a liquid crystal lenslet, a Fresnel lenslet, and a pancake lenslet.