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:
Jan. 24, 2012
Filed:
Jan. 13, 2009
Zhuo-guang Ruan, Guangdong, CN;
Ming-hsun Hsieh, Tu-Cheng, TW;
Zhuo-Guang Ruan, Guangdong, CN;
Ming-Hsun Hsieh, Tu-Cheng, TW;
Premier Image Technology (China) Ltd., Foshan, Guangdong Province, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A DLP projector includes a light source generating white light beams, a color wheel separating the white light beams into three colored light beams, an integration rod rendering the colored light beams uniform, a projection lens, a DMD, a light-shade and a light-absorbing member. When a light beam on a first path is in use, a micro mirror of the DMD reflects the light beam on the first path to follow a second path towards the projection lens. Otherwise, the micro mirror reflects the light beam on the first path to follow a third, fourth and fifth path out of the projection lens. The light-shade is positioned in a light path of the light beam out of the projection lens. The light-absorbing member is under the light-shade and absorbs the light beam on the fifth path, the light beam on a sixth and a seventh path reflected by the light-shade.