US 11,852,827 B2
Switchable artificial reality device
Afsoon Jamali, Issaquah, WA (US); Sandro Pintz, Menlo Park, CA (US); Kurt Jenkins, Sammamish, WA (US); and Christopher Stipe, Woodinville, WA (US)
Assigned to META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Oct. 7, 2022, as Appl. No. 17/962,270.
Claims priority of provisional application 63/291,923, filed on Dec. 20, 2021.
Prior Publication US 2023/0194873 A1, Jun. 22, 2023
Int. Cl. G02B 27/01 (2006.01); G02F 1/1335 (2006.01); G02F 1/01 (2006.01); G06F 1/16 (2006.01); G02F 1/139 (2006.01); G02F 1/1334 (2006.01)
CPC G02B 27/0172 (2013.01) [G02F 1/0136 (2013.01); G02F 1/133526 (2013.01); G02F 1/133536 (2013.01); G06F 1/163 (2013.01); G02B 27/0176 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0161 (2013.01); G02B 2027/0178 (2013.01); G02F 1/1396 (2013.01); G02F 1/13345 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A device, comprising:
a reflective polarizer configured to selectively reflect or transmit a polarized light based on a polarization of the polarized light;
a display element disposed at a first side of the reflective polarizer, and configured to output a first image light representing a virtual image;
a polarization switch disposed between the display element and the reflective polarizer, and configured to switch or maintain a polarization of the first image light; and
an active dimming device disposed at a second side of the reflective polarizer, and configured to provide an adjustable transmittance of an input light.