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US Patent 10845597 Pancake lenses using Fresnel surfaces
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Patent
Current Assignee
Facebook
Date Filed
May 30, 2018
Date of Patent
November 24, 2020
Patent Applicant
Facebook
Patent Application Number
15993316
Patent Citations Received
US Patent 11320665 Retarder stack pairs for polarization basis vector transformations
US Patent 11294113 Wide-angle compensation of uniaxial retarder stacks
US Patent 11703623 Wide-angle compensation of uniaxial retarder stacks
0
US Patent 11543669 Wide angle variable neutral density filter
US Patent 11249355 Color switch for reduced color cross-talk
US Patent 11619817 Pancake lenses using Fresnel surfaces
0
US Patent 11269123 Hollow triple-pass optical elements
Patent Jurisdiction
United States Patent and Trademark Office
Patent Number
10845597
Patent Primary Examiner
George G King
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