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.:

US 8203113 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 19, 2012

Filed:

Nov. 30, 2010
Applicants:

Shinya Matsumoto, Hirakata, JP;

Yoshihiro Yokote, Yokohama, JP;

Makoto Maeda, Osaka, JP;

Inventors:

Shinya Matsumoto, Hirakata, JP;

Yoshihiro Yokote, Yokohama, JP;

Makoto Maeda, Osaka, JP;

Assignee:

Sanyo Electric Co., Ltd., Moriguchi, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 3/14 (2006.01); H01J 40/14 (2006.01); G03B 21/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

An illumination apparatus includes; a first solid-state light source, a second solid-state light source, a first arrangement member provided with a first arrangement surface, a second arrangement member provided with a second arrangement surface, an optical unit configured to reduce a dispersion angle of a light beam. The first solid-state light source emits a light beam having a first directivity. The second solid-state light source emits a light beam having a second directivity greater than the first directivity. A distance from the second arrangement surface to the second light-entering surface is longer than a distance from the first arrangement surface to the first light-entering surface.


Find Patent Forward Citations

Matsumoto, Shinya. (2012). Illumination apparatus and projection display apparatus (U.S. Patent No. 8203113). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8203113

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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