The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2023
Filed:
May. 26, 2021
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Hsien-Hui Cheng, Redmond, WA (US);
Yang Zhao, Kirkland, WA (US);
Hannah Noble, Sunnyvale, CA (US);
Fenglin Peng, Redmond, WA (US);
Lu Lu, Kirkland, WA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
A polarization modulator includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell has a first type of liquid crystals configured to rotate an optical axis of light parallel to a first plane of the first liquid crystal cell. The second liquid crystal cell is configured to receive the light from the first liquid crystal cell. The second liquid crystal cell has a second type of liquid crystals configured to rotate the optical axis of the light perpendicular to a second plane of the second liquid crystal cell.