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:
Nov. 22, 2016
Filed:
Mar. 19, 2014
Applicant:
Panasonic Corporation, Osaka, JP;
Inventor:
Takaaki Tanaka, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); G03B 21/2066 (2013.01); G03B 21/2073 (2013.01); G03B 21/208 (2013.01);
Abstract
A light source device includes a light source, a first dichroic mirror, and a light emitting member. The light source is configured to emit blue light substantially polarized in a first direction. The first dichroic mirror is configured to reflect not less than 80% and not more than 90% of the blue light polarized in the first direction, and to transmit more than 10% and less than 20% of the blue light polarized in the first direction, in a wavelength band of blue light. The light emitting member is configured to emit light upon being excited by the blue light reflected by the first dichroic mirror.