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:
May. 11, 2021
Filed:
Jul. 09, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Takehito Kawasumi, Saitama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A color separation and combination system includes a first optical system including a first optical plane, and a second optical system including second to fourth optical planes. The first optical plane guides light from a light source to the second optical plane. The second optical plane guides first color light among light from the first optical plane to the third optical plane, and guides second color light among the light from the first optical plane. The third optical plane totally reflects the first color light toward the first image display element, and totally reflects light from the first image display element toward the projection optical system. The fourth optical plane totally reflects the second color light toward the second image display element, and totally reflects light from the second image display element toward the projection optical system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile