PHOSPHOR AND LIGHT-EMITTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a phosphor having high luminance, high temperature property and long-term reliability, and a white light-emitting device using the phosphor.SOLUTION: There is provided a phosphor containing an acid nitride phosphor (A) having a peak wave length of 540 nm to 545 nm and fluorescence intensity of 260% to 280% and a nitride phosphor having the peak wave length of 625 nm to 635 nm (B). The blended ration of the phosphor (A) is 74 pts.mass to 89 pts.mass and the blended ratio of the phosphor (B) is 11 pts.mass to 19 pts.mass.