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:
May. 26, 2015
Filed:
May. 31, 2011
Applicant:
Masahiko Ohta, Tokyo, JP;
Inventor:
Masahiko Ohta, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 13/12 (2006.01); G03B 21/20 (2006.01); H04N 9/31 (2006.01); F21V 9/00 (2006.01); H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
F21V 13/12 (2013.01); G03B 21/204 (2013.01); H04N 9/3161 (2013.01); F21V 9/00 (2013.01); H04N 9/3105 (2013.01); H01S 5/005 (2013.01);
Abstract
A light source device includes a light source unit concluding LD element () for emitting a laser beam polarized in a particular direction and lens () for condensing the laser beam emitted from LD element () and phosphor layer () excited by the laser beam condensed by lens () of the light source unit to discharge incoherent light. The incident angle of the laser beam to phosphor layer () is larger than 0° and smaller than 90°, and the laser beam enters phosphor layer () as P-polarized light.