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:
Feb. 02, 2016
Filed:
Nov. 09, 2010
Applicant:
Masateru Matsubara, Tokyo, JP;
Inventor:
Masateru Matsubara, Tokyo, JP;
Assignee:
NEC DISPLAY SOLUTIONS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); F21V 13/02 (2006.01); F21V 13/12 (2006.01); F21V 29/02 (2006.01); G03B 21/16 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
F21V 13/02 (2013.01); F21V 13/12 (2013.01); F21V 29/02 (2013.01); G03B 21/16 (2013.01); G03B 21/204 (2013.01); G03B 21/2033 (2013.01); G03B 21/2066 (2013.01); G03B 21/208 (2013.01); G03B 21/2013 (2013.01); H04N 9/3111 (2013.01); H04N 9/3161 (2013.01); H04N 9/3164 (2013.01);
Abstract
A lighting device includes: a phosphor wheel; a color-combining prism including dichroic surfaces, the film surfaces of these dichroic surfaces being disposed to cross a center ray of luminous flux of fluorescence emitted from the phosphor wheel and to be orthogonal to a plane that contains the center ray; a blue laser; a red laser; and excitation light sources. When viewed from the direction perpendicular to the plane, the blue laser, red laser, and excitation light sources are arranged on one side of the center ray of the luminous flux of the fluorescence.