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. 06, 2011
Filed:
Mar. 06, 2009
Applicants:
Chi Fai Cheung, Hong Kong, HK;
Sandy to, Hong Kong, HK;
Wing Bun Lee, Hong Kong, HK;
Jin BO Jiang, Hong Kong, HK;
Wen Kui Wang, Hong Kong, HK;
Inventors:
Chi Fai Cheung, Hong Kong, HK;
Sandy To, Hong Kong, HK;
Wing Bun Lee, Hong Kong, HK;
Jin Bo Jiang, Hong Kong, HK;
Wen Kui Wang, Hong Kong, HK;
Assignee:
The Hong Kong Polytechnic University, Hong Kong, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F21V 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fog lamp may include a Lambertian LED, a collimating lens encompassing the Lambertian LED, a collimating surface including a total internal reflective surface and encompassing the collimating lens, and a corrugated surface attached to the collimating surface at an acute angle with respect to an optic axis of the corrugated surface.