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:
Jun. 07, 2011
Filed:
Jul. 13, 2006
Wen-chang Chien, Miao-Li County, TW;
Fan Chiang Chih-heng, Miao-Li County, TW;
Wen-Chang Chien, Miao-Li County, TW;
Fan Chiang Chih-Heng, Miao-Li County, TW;
Coretronic Corporation, Hsinchu, TW;
Abstract
A projection apparatus, an illumination module and a color-level correcting method therefor are provided. The projection apparatus comprises a projection lens, an imaging unit and an illumination module. The illumination module comprises a light source, a color wheel and a controlling unit. The light source provides a light beam. The color wheel is disposed on an optical path of the light beam and the controlling unit is connected to the color wheel and the imaging unit. A plurality of color wheel indices is stored in the controlling unit. When the projection apparatus receives an image signal, the controlling unit selects one of the color wheel indices according to the received image signal and controls the imaging unit according to the selected color wheel index. The projection apparatus automatically selects the corresponding color wheel index according to the received image signal for projecting an image with good tints and color-level performance.