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:
Aug. 01, 2006
Filed:
Feb. 19, 2003
Gary D. Sharp, Boulder, CO (US);
Jianmin Chen, Superior, CO (US);
Michael G. Robinson, Boulder, CO (US);
Gary D. Sharp, Boulder, CO (US);
Jianmin Chen, Superior, CO (US);
Michael G. Robinson, Boulder, CO (US);
ColorLink, Inc., Boulder, CO (US);
Abstract
A light source for sequential or scrolling displays that recycles otherwise unusable light. The recycling is achieved by reflecting that portion of the light spectrum that will not be used by a pixel back into the light pipe where the light is rehomogenized or redistributed. The rehomogenized or redistributed light may then be used by other pixels that can uses that portion of the light spectrum. The reflection or transmission of the light through a reflective polarizer is controlled by a polarization rotation element that rotates certain portions of the spectrum according to excitation.