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:
Oct. 08, 2013
Filed:
Jan. 11, 2010
Applicants:
Shingo Ohkawa, Saitama, JP;
Atsushi Seki, Kanagawa, JP;
Kotaro Shima, Kanagawa, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F21V 5/02 (2006.01); F21V 5/00 (2006.01);
U.S. Cl.
CPC ...
F21V 5/008 (2013.01); F21V 5/005 (2013.01); F21V 5/02 (2013.01);
Abstract
A light control member includes a plate-like member including a first flat surface and a second surface facing the first surface. The second surface has at least three prism line groups, each group including a plurality of substantially parallel linear prisms. Each one of the linear prisms of one prism line group intersects the linear prisms of other prism line groups at one intersection point, and each linear prism is formed into a convex shape having a substantially curved outer edge when viewed along its longitudinal direction.