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. 24, 2013
Filed:
Dec. 16, 2005
Applicants:
Takahiko Ueda, Ibaraki, JP;
Hiroshi Koyama, Ibaraki, JP;
Inventors:
Takahiko Ueda, Ibaraki, JP;
Hiroshi Koyama, Ibaraki, JP;
Assignee:
Yupo Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/02 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light reflector of which the bidirectional reflectance Ris from 90 to 120% when the light entrance angle is 15° and the light acceptance angle is 0°, and the bidirectional reflectance Ris from 85 to 110% when the light entrance angle is 75° and the light acceptance angle is 0°. The light reflector has high reflectivity, and attains brightness improvement even in underlight-type backlights.