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:
Apr. 14, 2020
Filed:
Apr. 18, 2019
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Takehiro Koyama, Utsunomiya, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); G03B 21/20 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/145 (2013.01); G03B 21/204 (2013.01); G03B 21/006 (2013.01); G03B 21/2073 (2013.01);
Abstract
A projection type display apparatus includes a container configured to house a light source unit, a light modulation element, and an optical system configured to illuminate the light modulation element with light from the light source unit, a housing configured to house the container, and a reinforcement member configured to extend from an outer surface of the container to an inner surface of the housing and to contact the outer surface of the container and the inner surface of the housing. A side of the reinforcement member contacting the inner surface of the housing is fixed onto a side surface of the housing.