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. 04, 2011
Filed:
Apr. 13, 2007
Chia-jui Lin, Taoyuan County, TW;
Hsiu-ming Chang, Taoyuan County, TW;
Kuo-ching Chang, Taoyuan County, TW;
Hui-chih Lin, Taoyuan County, TW;
Yu-ho Tsao, Taoyuan County, TW;
Chia-Jui Lin, Taoyuan County, TW;
Hsiu-Ming Chang, Taoyuan County, TW;
Kuo-Ching Chang, Taoyuan County, TW;
Hui-Chih Lin, Taoyuan County, TW;
Yu-Ho Tsao, Taoyuan County, TW;
Delta Electronics, Inc., Taoyuan County, TW;
Abstract
A projection apparatus having a temperature controlling system is provided. The projection apparatus comprises at least a heat generating element, while the temperature controlling system comprises a liquid flow system, a heat generating device, and a heat transferring device. The liquid flow system is disposed along the heat generating element. The heat generating device produces heat with a positive value (endothermic) or a negative value (exothermic) in response to an environment dependent on the location of the projection apparatus. The heat transferring device transfers the heat generated by the heat generating device along the liquid flow system. The present invention maintains the operation of the projection apparatus under the desired working temperature and enables a thermal equilibrium of the projection apparatus without being influenced by the over-temperature or under-temperature of the external environment.