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.

Date of Patent:
Jan. 02, 2018

Filed:

Mar. 10, 2014
Applicants:

Tatsuya Takahashi, Tokyo, JP;

Takanobu Osaka, Kanagawa, JP;

Naoki Nakamura, Saitama, JP;

Kazuhiro Fujita, Tokyo, JP;

Takehiro Nishimori, Kanagawa, JP;

Inventors:

Tatsuya Takahashi, Tokyo, JP;

Takanobu Osaka, Kanagawa, JP;

Naoki Nakamura, Saitama, JP;

Kazuhiro Fujita, Tokyo, JP;

Takehiro Nishimori, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); F21V 13/02 (2006.01); F21V 13/04 (2006.01); G03B 33/06 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2066 (2013.01); F21V 13/02 (2013.01); F21V 13/04 (2013.01); G03B 21/204 (2013.01); G03B 21/208 (2013.01); G03B 21/2013 (2013.01); G03B 33/06 (2013.01); H04N 9/3164 (2013.01);
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 to condense light emitted from the plurality of light sources. 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.


Find Patent Forward Citations

Loading…