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US Patent 11774731 Optical system, projector, and imaging apparatus
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Patent
Date Filed
August 30, 2021
Date of Patent
October 3, 2023
Patent Application Number
17461591
Patent Citations
US Patent 10645353 Projection optical system and projector
US Patent 7677738 Image projector
US Patent 7549755 Projection optical system and projection display device using the same
Patent Inventor Names
Hirotaka Yanagisawa
Patent Jurisdiction
United States Patent and Trademark Office
Patent Number
11774731
Patent Primary Examiner
Sultan Chowdhury
CPC Code
G03B 21/145
G03B 21/208
G03B 21/2053
G03B 21/2066
H04N 9/312
H04N 9/315
H04N 9/3105
H04N 9/3108
H04N 9/3132
H04N 9/3152
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