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:
Aug. 07, 2007

Filed:

Dec. 06, 2004
Applicant:

Shinzo Matsui, Kitatsuru-gun, JP;

Inventor:

Shinzo Matsui, Kitatsuru-gun, JP;

Assignee:

Olympus Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G03B 21/26 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An illumination apparatus which applies light from light emitting members to a region to be illuminated. The apparatus includes an emitted light quantity control unit which controls emitted light quantities of the members, and a light transmissibility changing unit which controls transmissibility of each light path which transmits output light of the light emitting member to the region. The controls of the emitted light quantity control unit and the light transmissibility changing unit are performed in such a manner that an illuminative light quantity in the region during intermittent lighting of a predetermined number of light emitting members which are some of the light emitting members at a driving current value larger than a rated current in a predetermined period is larger than an illuminative light quantity in the region during constant lighting of the predetermined number of light emitting members at a rated driving current in the predetermined period.


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