| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a red light-emitting phosphor having a luminous efficiency higher than that of the conventional and to provide a high-luminance light-emitting module using the same. <P>SOLUTION: The red light-emitting phosphor is represented by the formula: Eu(P<SB>5-x</SB>, Ta<SB>x</SB>)O<SB>14</SB>(wherein 0<x≤0.4), desirably has an excitation peak wavelength of 350 to 420 nm, more desirably 385 to 405 nm. It can constitute a high-luminance light-emitting module when combined with a semiconductor light-emitting element of an emission peak wavelength of 350 to 420 nm. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
