| abstract |
A phosphor capable of achieving high luminance in a 600 to 680 nm region, and a light emitting device having high luminance using the phosphor. A phosphor of the formula (1): Ca p Sr q M m -A a -B b -O t -N n: Eu r [M is selected from beryllium and zinc, A is aluminum, gallium, indium , Scandium, yttrium, lanthanum, gadolinium and lutetium, B is selected from silicon, germanium, tin, titanium, zirconium and hafnium, 0 <p <1, 0 <q <1, 0 ≦ m <1, 0 ≦ t ≦ 0.3, 0.00001 ≦ r ≦ 0.1, a = 1, 0.8 ≦ b ≦ 1.2, 2.7 ≦ n ≦ 3.1], and the phosphor is magnesium 20 Contains ~ 1500ppm and / or barium 40-5000ppm. [Selection figure] None |