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.

Date of Patent:
Dec. 09, 2014

Filed:

May. 25, 2012
Applicants:

Kai Huang, New Taipei, TW;

Ming-chih Sun, New Taipei, TW;

Inventors:

Kai Huang, New Taipei, TW;

Ming-Chih Sun, New Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/28 (2006.01); G03B 21/16 (2006.01); G03B 21/14 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); G03B 21/145 (2013.01);
Abstract

A dust-proof structure of a projector includes a color wheel module, an air diversion panel, and a circuit board. The color wheel module has a motor and a color wheel. The motor drives the color wheel by an axle to rotate. The air diversion panel is located on the circuit and positioned under the motor. The air diversion panel has an opening, a dust exit, and a dust collecting trough. The opening is positioned between the dust exit and the dust collecting trough. The circuit board has a sensor, which is placed in the opening of the air diversion panel. The dust exit and the dust collection trough of the air diversion panel prevent the sensor from dust aggregation.


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