US 11,914,182 B2
Polarizing beam splitter assembly
Andrew John Ouderkirk, Redmond, WA (US); Tanya Malhotra, Redmond, WA (US); Weichuan Gao, Redmond, WA (US); and Ying Geng, Bellevue, 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 14, 2020, as Appl. No. 16/874,265.
Claims priority of provisional application 62/850,473, filed on May 20, 2019.
Prior Publication US 2020/0371370 A1, Nov. 26, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 27/01 (2006.01); H04N 9/31 (2006.01); G02B 5/30 (2006.01); G02B 27/28 (2006.01); G03H 1/02 (2006.01)
CPC G02B 5/3025 (2013.01) [G02B 5/3016 (2013.01); G02B 27/0101 (2013.01); G02B 27/0172 (2013.01); G02B 27/283 (2013.01); G03H 1/0248 (2013.01); H04N 9/3102 (2013.01); G02B 2027/0178 (2013.01); G03H 2001/0264 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical device, comprising:
a first polarization selective reflector; and
a second polarization selective reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs first light having a first polarization toward the second polarization selective reflector and the second polarization selective reflector directs second light having a second polarization toward the first polarization selective reflector, wherein:
a first plane defined by the first polarization selective reflector intersects a second plane defined by the second polarization selective reflector at a first angle; and
the first angle is measured between a portion of the first plane that directs the first light and a portion of the second plane that directs the second light.