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:
Jul. 10, 2001
Filed:
Apr. 19, 2000
Anthonie H. Bergman, Eindhoven, NL;
Serge J. A. Bierhuizen, Wilsonville, OR (US);
Jeffrey A. Shimizu, Cortlandt Manor, NY (US);
U.S. Philips Corporation, New York, NY (US);
Abstract
Color projection system includes a light source, an integrator plate arranged in front of the light source and having a plurality of juxtaposed lens elements, an electro-optical light modulation panel arranged in front of the integrator plate, a projection lens preceding the light modulation panel, and a movable color filter which is provided with a plurality of parallel extending, differently colored strips. The color filter is located opposite the integrator plate, which color filter and integrator plate are movable relative to each other in a direction extending parallel to the integrator plate, while at least two differently colored strips are located opposite each lens element, while strips of the same color have the same position with respect to each lens element.