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:
Nov. 23, 2010
Filed:
Mar. 28, 2008
Chih-chung Tsao, Miao-Li Hsien, TW;
Mei-jiun Lin, Miao-Li Hsien, TW;
Hung-chih Yang, Miao-Li Hsien, TW;
Jui-wen Fang, Miao-Li Hsien, TW;
Shu-hui Hsieh, Miao-Li Hsien, TW;
Chih-ming Lai, Miao-Li Hsien, TW;
Chih-Chung Tsao, Miao-Li Hsien, TW;
Mei-Jiun Lin, Miao-Li Hsien, TW;
Hung-Chih Yang, Miao-Li Hsien, TW;
Jui-Wen Fang, Miao-Li Hsien, TW;
Shu-Hui Hsieh, Miao-Li Hsien, TW;
Chih-Ming Lai, Miao-Li Hsien, TW;
Foxsemicon Integrated Technology, Inc., Chu-Nan, Miao-Li Hsien, TW;
Abstract
A light emitting diode (LED) illumination device () includes an LED (), a frustum-shaped light guide member () and a light diffusing plate (). The frustum-shaped light guide member () has a light input surface () and a light output surface () opposite to the light input surface (). The light guide member () tapers from the light output surface () to the light input surface (). The light input surface () is optically coupled to the LED (), and the light diffusing plate () is optically coupled to the light output surface () of the light guide member ().