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:
Sep. 13, 2022
Filed:
Jul. 10, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Tomohiro Nakamura, Yoshikawa, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G02B 26/00 (2006.01); H01L 33/50 (2010.01); H04N 9/31 (2006.01); G02B 27/14 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); G02B 26/008 (2013.01); G02B 27/141 (2013.01); G03B 21/2013 (2013.01); G03B 21/2066 (2013.01); H01L 33/50 (2013.01); H04N 9/3161 (2013.01); H04N 9/3164 (2013.01); H04N 9/3167 (2013.01);
Abstract
A light source device includes a light source unit and a rotating wheel. The light source unit is configured to emit first blue light and second blue light. The rotating wheel includes a diffuser layer configured to diffuse and transmit the first blue light, and a phosphor layer configured to convert at least a part of the second blue light into yellow light.
Nakamura, Tomohiro. (2022). Light source device having rotating wheel and image projection apparatus including the same (U.S. Patent No. 11442347). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11442347
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile