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:
Dec. 08, 2015
Filed:
Dec. 30, 2013
Applicant:
Delta Electronics, Inc., Taoyuan Hsien, TW;
Inventor:
Meng-Sheng Chang, Taoyuan Hsien, TW;
Assignee:
DELTA ELECTRONICS, INC., Taoyuan Hsien, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); H04N 9/31 (2006.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); H04N 9/3144 (2013.01); H04N 9/3194 (2013.01); G03B 21/2026 (2013.01);
Abstract
A fan control method for a projection apparatus is provided. The method includes the following steps. When the lamp is switched from a working state to a power-off state, the fan device is enabled. When a temperature of the lamp is reduced to a first predetermined temperature, the fan device is disabled. When the temperature of the lamp is reduced to be lower than a second predetermined temperature, the fan device is enabled again. When the temperature of the lamp is reduced to a re-ignition temperature, the fan device is disabled.