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:
Sep. 02, 2014
Filed:
Jul. 27, 2009
Applicants:
Kazuma Aiki, Tokyo, JP;
Satoshi Nakano, Kanagawa, JP;
Inventors:
Kazuma Aiki, Tokyo, JP;
Satoshi Nakano, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An illumination optical device includes a light source, a light pipe guiding illumination light from the light source, a diffuser arranged on an emitting surface side of the light pipe. A width of the emitting surface of the light pipe in the horizontal direction is set greater than a width of an illuminated object, and a width of the emitting surface of the light pipe in the vertical direction is set smaller than a width of the illuminated object.