US 11,758,109 B2
Techniques for measuring depth and polarization from a single sensor
Wenshou Chen, Santa Clara, CA (US); Yiyi Ren, San Jose, CA (US); Guansong Liu, San Jose, CA (US); Badri Padmanabhan, San Jose, CA (US); Alireza Bonakdar, San Jose, CA (US); and Richard Mann, Santa Clara, CA (US)
Assigned to OmniVision Technologies, Inc., Santa Clara, CA (US)
Filed by OMNIVISION TECHNOLOGIES, INC., Santa Clara, CA (US)
Filed on Feb. 1, 2021, as Appl. No. 17/164,679.
Prior Publication US 2022/0247992 A1, Aug. 4, 2022
Int. Cl. H04N 13/218 (2018.01); G06T 7/593 (2017.01); H04N 23/55 (2023.01); H04N 13/00 (2018.01)
CPC H04N 13/218 (2018.05) [G06T 7/593 (2017.01); H04N 23/55 (2023.01); G06T 2207/10012 (2013.01); H04N 2013/0081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An image sensor, comprising:
a plurality of photodiodes arranged as a photodiode array, wherein the photodiodes of the photodiode array are arranged into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant;
a first polarization filter and a first telecentric lens aligned with the first quadrant;
a second polarization filter and a second telecentric lens aligned with the second quadrant;
a third polarization filter and a third telecentric lens aligned with the third quadrant; and
a fourth telecentric lens aligned with the fourth quadrant.