US Patent 10557994 Waveguide grating with spatial variation of optical phase
Patent 10557994 was granted and assigned to Facebook on February, 2020 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
September 24, 2018
Date of Patent
February 11, 2020
Patent Applicant
Patent Application Number
16139820
Patent Inventor Names
Hee Yoon Lee
0
Patent Jurisdiction
Patent Number
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