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:
Feb. 05, 2019
Filed:
Sep. 04, 2015
Qisda Optronics (Suzhou) Co., Ltd., Suzhou, Jiangsu Province, CN;
Qisda Corporation, Taoyuan, TW;
Li-Yen Hsu, Taoyuan, TW;
Tsung-Hsun Wu, Taoyuan, TW;
Ying-Fang Lin, Taoyuan, TW;
Wen-Chung Ho, Taoyuan, TW;
Chi-Hung Hsiao, Taoyuan, TW;
Qisda Optronics (Suzhou) Co., Ltd., Suzhou, CN;
Qisda Corporation, Taoyuan, TW;
Abstract
A projector includes a color wheel module and an optical engine. The color wheel module includes a rotation device, a mount, a color wheel, and an optical sensor. The color wheel is fixed on a rotary part of the rotation device. The rotation device and the optical sensor are fixed on the mount. The mount has an anti-dust structure includes a curved surface that is opposite to a rotary surface of the rotary part and extends in a rotation direction of the rotary part. The curved surface and the optical sensor are arranged sequentially in the rotation direction. Either by shortening a distance between the curved surface and the rotary surface or by a guiding slot that is disposed beside or lower than the curved surface, dust deposited on the optical sensor can be reduced effectively.