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. 31, 2016
Filed:
Feb. 25, 2014
Tatsuya Takahashi, Tokyo, JP;
Takanobu Osaka, Kanagawa, JP;
Naoki Nakamura, Saitama, JP;
Kazuhiro Fujita, Tokyo, JP;
Takehiro Nishimori, Kanagawa, JP;
Tatsuya Takahashi, Tokyo, JP;
Takanobu Osaka, Kanagawa, JP;
Naoki Nakamura, Saitama, JP;
Kazuhiro Fujita, Tokyo, JP;
Takehiro Nishimori, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A light source unit includes a first reflector having a reflection face; a second reflector having a reflection face; a plurality of light sources; and a light condensing optical system disposed between the first reflector and the second reflector. Light beams emitted from the plurality of light sources are reflected at a first reflection position on the reflection face of the first reflector, and then reflected at a second reflection position on the reflection face of the second reflector. The second reflection position is close to an optical axis of the light condensing optical system compared to the first reflection position. The light condensing optical system is configured such that the light beam passes through the light condensing optical system at least two times when the light beams reflect between the first reflector and the second reflector.