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:
Jun. 23, 2015
Filed:
Dec. 21, 2012
Applicant:
Sanyo Electric Co., Ltd., Osaka, JP;
Inventor:
Michihiro Okuda, Osaka, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); H04N 9/31 (2006.01); G02B 19/00 (2006.01); F21V 13/04 (2006.01); G03B 33/12 (2006.01); G02B 27/09 (2006.01); G02B 27/10 (2006.01); G02B 27/12 (2006.01); G02B 27/14 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2066 (2013.01); G03B 21/208 (2013.01); H04N 9/3152 (2013.01); H04N 9/3161 (2013.01); F21V 13/04 (2013.01); G03B 21/2013 (2013.01); G03B 21/2033 (2013.01); G03B 33/12 (2013.01); G02B 19/0057 (2013.01); G02B 27/0994 (2013.01); G02B 27/1026 (2013.01); G02B 27/126 (2013.01); G02B 27/141 (2013.01);
Abstract
A light source apparatus comprises: a plurality of light sources that emit light having a wide spread angle at a fast axis and a narrow spread angle at a slow axis, a first refractive optical element that converts light emitted from the plurality of light sources at the fast axis to parallel light, and a second refractive optical element that converts the light emitted from the plurality of light sources at the slow axis to parallel light. The plurality of light sources are arranged along the fast axis.