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. 21, 2019
Filed:
Jan. 16, 2018
Seiko Epson Corporation, Tokyo, JP;
Ippei Kurota, Matsumoto, JP;
Hiroshi Tsuchitani, Shiojiri, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A projection optical apparatus includes an optical system and a projection optic enclosure that accommodates the optical system. The optical system includes a first optical system on which the image light is incident, and the projection optic enclosure includes a first accommodation section that accommodates the first optical system and includes a flange section (supported section) supported by the image forming apparatus and a first wall section and a second wall section that face each other in a first direction (Y direction) that intersects the direction along a line that connects the flange section to the center of gravity of the projection optical apparatus.