US 11,860,571 B2
Optical system with polarization volume hologram
Andrew John Ouderkirk, Kirkland, WA (US); Robin Sharma, Woodinville, WA (US); Hannah Noble, Sunnyvale, CA (US); Babak Amirsolaimani, Redmond, WA (US); and Yusufu Njoni Bamaxam Sulai, Snohomish, WA (US)
Assigned to META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Nov. 16, 2021, as Appl. No. 17/528,180.
Application 17/528,180 is a continuation of application No. 16/417,223, filed on May 20, 2019, granted, now 11,209,775.
Prior Publication US 2022/0075316 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G03H 1/02 (2006.01); G02B 5/32 (2006.01); G02B 27/28 (2006.01)
CPC G03H 1/0248 (2013.01) [G02B 5/32 (2013.01); G02B 27/283 (2013.01); G03H 1/0256 (2013.01); G03H 2223/23 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a first polarization volume hologram (PVH) layer configured to deflect a first polarized light having a first handedness;
a second PVH layer coupled to the first PVH layer and configured to deflect a second polarized light having a second handedness opposite to the first handedness; and
an optical sensor configured to generate a first image based on the first polarized light deflected by the first PVH layer, and generate a second image based on the second polarized light deflected by the second PVH layer.
 
18. A system, comprising:
a first polarization volume hologram (PVH) layer configured to deflect a first polarized light having a first handedness and having a first field of view (FOV); and
a second PVH layer coupled to the first PVH layer and configured to deflect a second polarized light having a second handedness opposite to the first handedness, and having a second FOV,
wherein the first FOV encompasses the second FOV.