Patent ID: 9512358
Filing Date: 2016-12-06
CPC Classification: C09K,H01L

Claim Text:
1. A phosphor represented by general formula Me a Re b Si c Al d N e O f (Me contains Sr as an essential element and may contain one or more elements selected from Na, Li, Mg, Ca, Ba, Sc, Y, and La; and Re contains Eu as an essential element and may contain one or more elements selected from Mn, Ce, Tb, Yb, and Sm), wherein when a, b, c, d, e, and f representing composition ratio satisfy the following formulae: a=1−x, b=x, c=(2+2p)×(1−y), d=(2+2p)×y, e=(1+4p)×(1−z), and f=(1+4p)×z, parameters p, x, y, and z fall within the following range: 1.630<p<1.650, 0.005<x<0.300, 0.180<y<0.220, and 0.060<z<0.100, and wherein the phosphor is excited by light having wavelengths falling within a range from 300 nm to 500 nm and has emission peak wavelengths falling within a range from 495 nm to 530 nm.