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. 06, 2015
Filed:
Jun. 30, 2014
Applicant:
Optivision Technology Inc., Hsinchu, TW;
Inventors:
Assignee:
OPTIVISION TECHNOLOGY INC., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 5/00 (2015.01); G02B 5/02 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0051 (2013.01);
Abstract
An optical thin film includes: a transparent substrate including a first surface and a second surface which is opposite to the first surface; a first light-condensing layer formed on the first surface of the transparent substrate, the first light-condensing layer having a haze value ranging from 5% to 30% and a surface roughness ranging from 0.1 RMS to 1 RMS; and a second light-condensing layer formed on the second surface of the transparent substrate. The second light-condensing layer has a haze value ranging from 70% to 100% and a surface roughness ranging from 1 RMS to 10 RMS.