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:
Apr. 26, 2011
Filed:
Dec. 17, 2007
Teng-ming Chen, Hsinchu, TW;
Woan-jen Yang, Taichung County, TW;
Yao-tsung Yeh, Taoyuan County, TW;
Chien-yueh Tung, Taipei, TW;
Tien-heng Huang, Tainan County, TW;
Fang-ching Chang, Tainan County, TW;
Yung Chi Chen, Taichung County, TW;
Wei-jen Liu, Taoyuan County, TW;
Teng-Ming Chen, Hsinchu, TW;
Woan-Jen Yang, Taichung County, TW;
Yao-Tsung Yeh, Taoyuan County, TW;
Chien-Yueh Tung, Taipei, TW;
Tien-Heng Huang, Tainan County, TW;
Fang-Ching Chang, Tainan County, TW;
Yung Chi Chen, Taichung County, TW;
Wei-Jen Liu, Taoyuan County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The invention provides a white light illumination device including an ultraviolet excitation light source and an ultraviolet excitable aluminosilicate phosphor. The ultraviolet excitable aluminosilicate phosphor has a formula as (M,Re)AlSiO:D, wherein M is Mg, Ca, Sr, Ba or combination thereof. In addition, Re is Y, La, Pr, Nd, Eu, Gd, Tb, Ce, Dy, Yb, Er, Sc, Mn, Zn, Cu, Ni, Lu or combination thereof, while 0<a, b, c, d, 2a+3b+4c=2d, and 0≦x≦a. Furthermore, D is F, Cl, I, Br, OH, S or combinations thereof. The aluminosilicate phosphor emits blue or blue-green light under the excitation of ultraviolet light, and the aluminosilicate phosphor may further collocate with different color phosphors to provide a white light illumination device.