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:
Sep. 07, 2010
Filed:
May. 14, 2007
Chun-yu LU, Hsinchu, TW;
Chun-Yu Lu, Hsinchu, TW;
Coretronic Corporation, Hsinchu, TW;
Abstract
An imaging system suitable for projecting an image beam provided by a light valve unto a screen is provided. The imaging system includes a projection lens and a light beam modulation module. The projection lens is disposed on an optical path of the image beam, so as to project the image beam unto the screen. The light beam modulation module comprising a fixed light shutter and a movable light shutter is disposed between the projection lens and the light valve. The fixed light shutter is disposed on the optical path of the image beam so as to shield off a portion of the circumferential light of the image beam. The movable light shutter is suitable for moving into the optical path of the image beam to shield off another portion of the circumferential light of the image beam.