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:
Dec. 26, 2006
Filed:
Apr. 24, 2003
Mitchell C. Ruda, Tucson, AZ (US);
Tilman W. Stuhlinger, Tucson, AZ (US);
Kevin J. Garcia, Tucson, AZ (US);
Mitchell C. Ruda, Tucson, AZ (US);
Tilman W. Stuhlinger, Tucson, AZ (US);
Kevin J. Garcia, Tucson, AZ (US);
Qubic Light Corporation, Sausalito, CA (US);
Abstract
An optical system for use in projection based displays includes a plurality of solid state light sources associated with a plurality of total internal reflection based compound hyperbolic emitters, a graduated dichroic filter based device for homogenizing light output from the plurality of solid state light sources, a ferro-electric liquid crystal on silicon device for illumination with light output from the array of solid state light sources, and a polarization diffuser for homogenization of light at the ferro-electric liquid crystal on silicon device, wherein the polarization diffuser is positioned at a point in space, in the optical system, where the size of a beam of light transmitted from the graduated dichroic filter based device is substantially at a maximum.