| 摘要 |
PROBLEM TO BE SOLVED: To provide: a light-emitting element which has high brightness and color rendering properties, and a little color shift of the emitted light; an image display device and a lighting unit having the light-emitting element as a light source; and a phosphor mixture for obtaining the light-emitting element.SOLUTION: This phosphor mixture contains at least two phosphors and satisfies formula (A): 0.85≤BR(125)/BR(25)≤1.15 and formula (B): -0.03≤x(25)-x(125)≤0.03, wherein: BR(25) is brightness of fluorescence and x(25) is a chromaticity coordinate value x, both being obtained by being excited by a blue light having a peak wavelength of 455 nm at 25°C; BR(125) is brightness of fluorescence and x1(125) is a chromaticity coordinate value x, both being obtained by being excited by a blue light having a peak wavelength of 455 nm at 125°C. There are also provided an image display and a lighting unit equipped with this light-emitting device. |
