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:
Apr. 02, 2013
Filed:
Oct. 30, 2006
Applicants:
Takahiko Ueda, Ibaraki, JP;
Hiroshi Koyama, Ibaraki, JP;
Haruto Nagakusa, Ibaraki, JP;
Inventors:
Assignee:
Yupo Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light reflector comprising a resin film having a reflection angle peak ratio [i.e. (reflection peak value when a light ray is applied at an angle of 45° to the perpendicular line of the reflection surface)/(reflection peak value when a light ray is applied at an angle of 15° to the perpendicular line of the reflection surface)] of from 1.3 to 10, and a specular reflectance [i.e. (reflectance)−(diffuse reflectance)] of from 1.4% to 10%. This light reflector can prevent generation of a bright line even when it is used in an illumination device having a plurality of light sources.