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. 18, 2017
Filed:
Nov. 19, 2014
Satoshi Tsuchiya, Kanagawa, JP;
Tetsuya Fujioka, Kanagawa, JP;
Hideo Kanai, Tokyo, JP;
Masamichi Yamada, Kanagawa, JP;
Yasunari Mikutsu, Tokyo, JP;
Naoyuki Ishikawa, Kanagawa, JP;
Akihisa Mikawa, Kanagawa, JP;
Yukimi Nishi, Tokyo, JP;
Satoshi Tsuchiya, Kanagawa, JP;
Tetsuya Fujioka, Kanagawa, JP;
Hideo Kanai, Tokyo, JP;
Masamichi Yamada, Kanagawa, JP;
Yasunari Mikutsu, Tokyo, JP;
Naoyuki Ishikawa, Kanagawa, JP;
Akihisa Mikawa, Kanagawa, JP;
Yukimi Nishi, Tokyo, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A projection optical device to project an image on a projection plane, includes a reflection mirror, a plurality of projection lenses, a projection lens supporting member to support the plurality of projection lenses, and a position-arrangement member provided at the projection lens supporting member to arrange the reflection mirror at a predefined position on the projection lens supporting member.