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:
Oct. 31, 2006
Filed:
Dec. 09, 2002
Holger Mönch, Vaals, NL;
Holger Mönch, Vaals, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a video projection system comprising at least a light source coupled to a reflector for focusing the light beam, a motor-driven color wheel having a plurality of light-transmitting segments, at least some of said segments being dichroic filters for the colors red, green, and blue, while the speed of rotation of said wheel can be modified by a control, a lens system imaging the focused light beam onto a display, a display system comprising at least a display and a display control, and a projection lens, wherein the video projection system has a video projection mode and a lighting mode, and in addition the color wheel is stationary in the lighting mode and at least one segment of the color wheel can be given a defined position in the beam.