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. 21, 2014
Filed:
Aug. 28, 2009
Wen-yung Yeh, Hsinchu County, TW;
Jui-ying Lin, Taipei, TW;
Yu-chen Yu, Taipei, TW;
Ming-te Lin, Taipei County, TW;
Yu-chun Lin, Hsinchu County, TW;
Ta-wei Chien, Hsinchu, TW;
Wen-Yung Yeh, Hsinchu County, TW;
Jui-Ying Lin, Taipei, TW;
Yu-Chen Yu, Taipei, TW;
Ming-Te Lin, Taipei County, TW;
Yu-Chun Lin, Hsinchu County, TW;
Ta-Wei Chien, Hsinchu, TW;
Epistar Corporation, Hsinchu, TW;
Abstract
A lamp apparatus include a lamp body, at least an alternating current light-emitting diode and a plug. The alternating current light-emitting diode is disposed on a lamp body. The plug is electrically connected to the alternating current light-emitting diode. In lamp apparatuses utilizing AC LED, heat generated thereby is almost concentrated on chips. Compared with conventional lamp apparatuses utilizing DC LEDs, heat generated thereby is distributed on chips and outer rectifier. In lamp apparatuses utilizing AC LEDs, heat generated thereby is almost concentrated on chips because AC LEDs operate directly with AC electric power, omitting a rectifier and preventing power loss during operation of power rectification. Therefore, the heat accumulated on the chips of the AC LEDs is enough to be used to evaporate essential oil. In another embodiment, the invention utilizes low-resistance pure water surrounding the AC LED to dissipate its heat.