Thomas|Kayden
White light illumination device
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 (M1-x,Rex)aAlbSicOd: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.
Industrial Technology Research Institute
C Y C
C09K Y02B C09K
inventional additional inventional
Tien-Heng Fang-Ching Chien-Yueh Woan-Jen Wei-Jen Yung Chi Yao-Tsung Teng-Ming
Huang Chang Tung Yang Liu Chen Yeh Chen