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. 14, 2017
Filed:
Aug. 16, 2012
Applicants:
Jhih-hao Chen, Hsin-Chu, TW;
Jia-hong Dai, Hsin-Chu, TW;
Tsung-ching Lin, Hsin-Chu, TW;
Inventors:
Assignee:
CORETRONIC CORPORATION, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); H04N 9/31 (2006.01); B01D 29/00 (2006.01); B01D 33/54 (2006.01); B01D 29/72 (2006.01); B01D 33/52 (2006.01); B01D 29/70 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); B01D 29/0084 (2013.01); B01D 29/0086 (2013.01); B01D 29/70 (2013.01); B01D 29/72 (2013.01); B01D 33/52 (2013.01); B01D 33/54 (2013.01); H04N 9/3144 (2013.01); B01D 2279/45 (2013.01); B01D 2311/106 (2013.01); B01D 2321/30 (2013.01);
Abstract
An air filter module adapted to be used with a projection module and disposed to cover an air vent of the projection module. The air filter module includes a filter component and a cleaning unit. The cleaning unit is disposed to cover the air vent and configured to drive the filter component to have a movement so as to remove the dust on the filter component according to a cleaning-start signal. A projection device adopting the air filter module is also provided.