US 11,953,796 B2
Tunable polarization holographic lenses
Lu Lu, Kirkland, WA (US); Xiayu Feng, Kirkland, WA (US); and Hsien-Hui Cheng, 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 May 16, 2022, as Appl. No. 17/745,854.
Claims priority of provisional application 63/224,328, filed on Jul. 21, 2021.
Prior Publication US 2023/0027269 A1, Jan. 26, 2023
Int. Cl. G02F 1/137 (2006.01); G02B 27/01 (2006.01); G02F 1/1333 (2006.01); G02F 1/1337 (2006.01); G02F 1/1343 (2006.01)
CPC G02F 1/137 (2013.01) [G02B 27/0172 (2013.01); G02F 1/133345 (2013.01); G02F 1/133738 (2021.01); G02F 1/134309 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0178 (2013.01); G02F 2203/07 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device, comprising:
a first Pancharatnam-Berry phase (“PBP”) lens; and
a second PBP lens stacked with the first PBP lens,
wherein each of the first PBP lens and the second PBP lens includes a liquid crystal (“LC”) layer,
wherein each side of the LC layer is provided with a continuous electrode and a plurality of patterned electrodes, and
wherein the patterned electrodes in the first PBP lens are arranged non-parallel to the patterned electrodes in the second PBP lens.