| 摘要 |
PROBLEM TO BE SOLVED: To provide: a phosphor that has high luminance, and that has a high temperature characteristic and long-term reliability; and a white light-emitting device using the phosphor.SOLUTION: A phosphor includes: an oxynitride phosphor (A) in which the peak wavelength is 550 nm to 555 nm and the fluorescent intensity is 240% to 260%; an oxynitride phosphor (B) in which the peak wavelength is 590 nm to 604 nm and the fluorescent intensity is 190% to 210%; and a nitride phosphor (C) in which the peak wavelength is 625 nm to 635 nm, wherein the mix proportion of the phosphor (A) is 43 mass% to 80 mass%, the mix proportion of the phosphor (B) is 7 mass% to 30 mass%, and the mix proportion of the phosphor (C) is 10 mass% to 20 mass%, and the total of the phosphors (A), (B) and (C) is at least 85 mass%. |
