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:
Nov. 28, 2017
Filed:
Jul. 27, 2016
Satoshi Tsuchiya, Kanagawa, JP;
Tetsuya Fujioka, Kanagawa, JP;
Hideo Kanai, Tokyo, JP;
Yasunari Mikutsu, Tokyo, JP;
Akihisa Mikawa, Kanagawa, JP;
Takahiro Hiramatsu, Kanagawa, JP;
Yukimi Nishi, Tokyo, JP;
Yoshito Saito, Kanagawa, JP;
Jun Mashimo, Tokyo, JP;
Satoshi Tsuchiya, Kanagawa, JP;
Tetsuya Fujioka, Kanagawa, JP;
Hideo Kanai, Tokyo, JP;
Yasunari Mikutsu, Tokyo, JP;
Akihisa Mikawa, Kanagawa, JP;
Takahiro Hiramatsu, Kanagawa, JP;
Yukimi Nishi, Tokyo, JP;
Yoshito Saito, Kanagawa, JP;
Jun Mashimo, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A projection lens unit includes a plurality of lenses configured to transmit and emit image light generated by an image generating unit using light from a light source; a barrel configured to hold the plurality of projection lenses; and a heat radiator disposed on the barrel and configured to radiate heat of the barrel to an outside.