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:
Jan. 05, 2016
Filed:
Dec. 07, 2011
Chia-jui Lin, Taoyuan Hsien, TW;
Hsiu-ming Chang, Taoyuan Hsien, TW;
Mao-shan Hsu, Taoyuan Hsien, TW;
Chia-Jui Lin, Taoyuan Hsien, TW;
Hsiu-Ming Chang, Taoyuan Hsien, TW;
Mao-Shan Hsu, Taoyuan Hsien, TW;
DELTA ELECTRONICS, INC., , TW;
Abstract
The projection apparatus includes a light source, optical elements and a heat dissipation assembly. The heat dissipation assembly includes a case, a heat dissipation element, a fan and a temperature controlling unit. The optical elements transmit a light beam generated by the light source, and thereby generate heat. The heat dissipation assembly is adapted for heat dissipation correspondingly. In the heat dissipation assembly, the case protects the optical elements from being polluted by the dust during heat dissipation. The temperature controlling unit senses the surrounding temperature to control the fan for cooling the heat dissipation element, and the durability of the optical elements are thereby enhanced.