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. 27, 2012
Filed:
Aug. 17, 2009
Applicant:
Kenneth LI, Castaic, CA (US);
Inventor:
Kenneth Li, Castaic, CA (US);
Assignee:
Wavien, Inc., Valencia, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/26 (2006.01); G03B 21/28 (2006.01); F21V 9/00 (2006.01); G02B 6/10 (2006.01); G02B 5/08 (2006.01); G02B 7/182 (2006.01); G02B 27/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A recycling system and method for increasing the brightness of light output using at least one recycling light pipe with at least one light source. The output end of the recycling light pipe reflects a first portion of the light back to the light source, a second portion the light to the input end of the recycling light pipe, and transmits the remaining portion of the light as output. The recycling system is incorporated into a projector to provide color projected image with increased brightness. The light source can be white LEDs, color LEDs, and dual paraboloid reflector (DPR) lamp.