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:
Sep. 07, 2010
Filed:
Feb. 12, 2008
Applicants:
Juan Manuel Teijido, Karlsruhe, DE;
Olivier Ripoll, Rueschlikon, CH;
Nadin Roesler, BP Eindhoven, NL;
Takeo Arai, Saitama, JP;
Inventors:
Juan Manuel Teijido, Karlsruhe, DE;
Olivier Ripoll, Rueschlikon, CH;
Nadin Roesler, BP Eindhoven, NL;
Takeo Arai, Saitama, JP;
Assignee:
SONY Deutschland GmbH, Berlin, DE;
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2006.01); F21V 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical device for backlighting a liquid crystal display. The optical device has an optical element. The optical element includes a material body and at least one recess. The recess is formed in the material body and is configured to determine the light distribution of light to be directed towards the liquid crystal display.