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:
Dec. 29, 2015

Filed:

Jul. 24, 2013
Applicants:

Kazuhiro Fujita, Machida, JP;

Ikuo Maeda, Sagamihara, JP;

Toshiharu Murai, Kawasaki, JP;

Tatsuya Takahashi, Shinagawa, JP;

Takehiro Nishimori, Yokohama, JP;

Inventors:

Kazuhiro Fujita, Machida, JP;

Ikuo Maeda, Sagamihara, JP;

Toshiharu Murai, Kawasaki, JP;

Tatsuya Takahashi, Shinagawa, JP;

Takehiro Nishimori, Yokohama, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); F21V 7/00 (2006.01); G03B 21/20 (2006.01); G02B 6/42 (2006.01); F21V 13/04 (2006.01); F21V 13/08 (2006.01); F21V 13/14 (2006.01); F21V 29/70 (2015.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); F21V 7/00 (2013.01); F21V 13/04 (2013.01); F21V 13/08 (2013.01); F21V 13/14 (2013.01); F21V 29/70 (2015.01); G02B 6/4269 (2013.01); G03B 21/16 (2013.01); G03B 21/2013 (2013.01); G03B 21/2066 (2013.01);
Abstract

An illumination light beam forming device, including a first light source unit projecting a ring shaped light beam group, a second light source unit projecting light beams including a case the light beams being group, a combining unit for combining the light beam group projected from the first light source unit and light beams projected from the second light source unit, in which the combing unit includes a reflecting part formed to reflect one of the light beam groups, a transmitting part disposed able to transmit the other one of the light beam groups, and light beams projected from the second light source unit are disposed at an internal side of the light beam groups projected from the first light source unit when the two light beam groups are viewed from a plane including the reflecting part.


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