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. 24, 2015
Filed:
Jul. 30, 2013
Applicant:
Nec Corporation, Minato-ku, Tokyo, JP;
Inventors:
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); H04N 9/31 (2006.01); G03B 21/20 (2006.01); G02B 27/28 (2006.01); G03B 33/12 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2073 (2013.01); G02B 27/28 (2013.01); G03B 21/2033 (2013.01); G03B 33/12 (2013.01); H04N 9/3105 (2013.01); H04N 9/3158 (2013.01); H04N 9/3164 (2013.01); H04N 9/3197 (2013.01);
Abstract
A first light source that emits first light of a first wavelength band; an optical path separator that separates the first light into third light and second light whose polarization directions are orthogonal to each other; an optical path separator and combiner that separates the second light into fourth light and fifth light having different wavelength bands from each other; a reflector that reflects the fifth light to a direction of the optical path separator and combiner; and an optical path combiner that combines the third light and the second light are included.