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:
Apr. 28, 2015
Filed:
Apr. 08, 2013
Applicant:
Delta Electronics, Inc., Taoyuan Hsien, TW;
Inventors:
Chia-Jui Lin, Taoyuan Hsien, TW;
Hui-Chih Lin, Taoyuan Hsien, TW;
Assignee:
Delta Electronics, Inc., , TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); F21V 29/02 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); F21V 29/02 (2013.01);
Abstract
A heat dissipation structure of a projection device includes at least one fan, at least one light emitting unit, at least one air guide, and a sensing device. The fan with an outlet is used for providing a cooling flow. The light emitting unit is used for providing a light beam. The air guide is dismountable disposed in front of the outlet. The air guide is used for guiding the cooling flow to a hot spot of the light emitting unit. The sensing device is used for sensing a projection direction of the projection device.