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:
Jun. 03, 2008
Filed:
Jul. 27, 2005
Lung-chien Chen, Hsin-Chuang City, Taipei Hsien, TW;
Wen-how Lan, Taoyuan City, Taoyuan Hsien, TW;
Feng-ku Chien, Chung-Ho City, Taipei Hsien, TW;
Lung-Chien Chen, Hsin-Chuang City, Taipei Hsien, TW;
Wen-How Lan, Taoyuan City, Taoyuan Hsien, TW;
Feng-Ku Chien, Chung-Ho City, Taipei Hsien, TW;
Other;
Abstract
A white light emitting diode (LED) is provided, which includes a reflective mirror arranged on the light emitting path of a blue or an ultra violet LED die at an appropriate angle. Phosphors are coated on the reflective mirror, the emitting plane of the LED, or both so that the phosphors are excited by the blue or UV lights emitted by the LED die to produce white lights. The present invention provides a white LED having a long lifetime and a uniform light color by separating the phosphors from the LED die, and by allowing the lights emitted from the LED die to undergo several excitations with the phosphors.