| 摘要 |
A light-emitting device comprises a support frame and at least one blue light-emitting chip and at least one red light-emitting chip coupled onto the support frame; and a green phosphor covering the at least one blue light-emitting chip and the at least one red light-emitting chip. The green phosphor is mainly an aluminate of the formula: M<SUB>1.x</SUB>Eu<SUB>x</SUB>Al<SUB>y</SUB>O<SUB>1+3y/2</SUB>, wherein M is at least one divalent metal selected from a group consisting of Ba, Sr, Ca, Mg, Mn, Zn, Cu, Cd, Sm and Tm; 0.1<x<0.9; and 0.5<=y<=12, whereby the light beams emitted from the blue light-emitting chip and the red light-emitting chip are allowed to pass through the green phosphor for generating white light.
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