Sunday, November 21, 2021
Facebook Files for a Patent on Polarization Sensor for AR Glasses
Facebook-Meta patent application US20210360132 "Stacked Image Sensor with Polarization Sensing Pixel Array" by Manoj Bikumandla, John Enders Robertson, and Andrew Matthew Bardagjy unveils the company's ideas for the sensor for its upcoming AR glasses:
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While it is a totally different division of light, the stacked cross section looks alot like that presented by Anzagira.
ReplyDeletehttps://www.imagesensors.org/Past%20Workshops/2015%20Workshop/2015%20Papers/Sessions/Session_4/4-01_Anzagira.pdf
Also reminds me of Anzagira's work (and others before him) on polarization filters. Seems to me the combination of the two might be obvious to those skilled in the art.
I have also recently found this from Facebook, but i'm not knowledgeable enough in imaging sensors to gauge how significant is this?
ReplyDeletehttps://patentimages.storage.googleapis.com/e5/a9/50/98f4d2b8e4da43/US11165982.pdf