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:
Aug. 12, 2014
Filed:
Sep. 05, 2007
Applicants:
Koji Mimura, Kawasaki, JP;
Ken Sumiyoshi, Kawasaki, JP;
Inventors:
Koji Mimura, Kawasaki, JP;
Ken Sumiyoshi, Kawasaki, JP;
Assignee:
NLT Technologies, Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01); F21V 11/02 (2006.01); F21V 11/16 (2006.01); G02B 27/00 (2006.01); G02F 1/1335 (2006.01); F21V 11/06 (2006.01); G02B 5/00 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133524 (2013.01); F21V 11/06 (2013.01); G02B 5/00 (2013.01);
Abstract
The invention is an optical element for limiting the propagation of light in oblique directions with respect to the optical element surface, and includes: a transparent substrate and a light ray control layer formed on a flat surface of said transparent substrate, wherein the light ray control layer has a transparent portion and a light absorbing portion, the transparent portion has a plurality of independent pattern elements having an identical configuration separated by said light absorbing portion and arranged at intervals.