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. 15, 2009
Filed:
Feb. 06, 2008
Juan L. Chilla, Sunnyvale, CA (US);
Sergei V. Govorkov, Boca Raton, FL (US);
Andrea Caprara, Menlo Park, CA (US);
Murray K. Reed, Menlo Park, CA (US);
Luis A. Spinelli, Sunnyvale, CA (US);
Juan L. Chilla, Sunnyvale, CA (US);
Sergei V. Govorkov, Boca Raton, FL (US);
Andrea Caprara, Menlo Park, CA (US);
Murray K. Reed, Menlo Park, CA (US);
Luis A. Spinelli, Sunnyvale, CA (US);
Coherent, Inc., Santa Clara, CA (US);
Abstract
A projection video display includes a light source including an OPS-laser delivering laser radiation in multiple transverse modes (a multiple-transverse-mode OPS-laser). The display includes a spatial light modulator for spatially modulating the radiation from the multiple-transverse-mode OPS-laser in accordance with a portion of an image to be displayed. Projection optics project the spatially modulated light on a screen on which the image is to be displayed. In one example the OPS-laser is a diode-laser array pumped OPS-laser and is one of three lasers, one delivering red light, one delivering blue light, and the other delivering green light. The lasers are time modulated such that the spatial light modulator receives light from each of the lasers separately. The OPS laser is directly time modulated by periodically turning the diode-laser array on and off.