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:
Nov. 17, 2009
Filed:
Dec. 14, 2007
Applicants:
Xiao-ming Tao, Hong Kong, HK;
Xiaohong Sun, Hong Kong, HK;
Inventors:
Xiao-ming Tao, Hong Kong, HK;
Xiaohong Sun, Hong Kong, HK;
Assignee:
Hong Kong Polytechnic University, Hong Kong, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A composite lenticular film includes a first layer having a first refractive index, and a second layer having a second refractive index less than the first refractive index. The second layer is integrally attached to the first layer. The first layer has at least one row of protruding lenses.