Phosphor, light emitting device, lighting device, image display device, and indicator lamp for vehicles

A phosphor comprising a crystal phase having a composition represented by Formula [1]:

• MAa-x-y-zRexMYyMZzMBbMC3-wMWwDd [1]
• where
• MA includes one or more elements selected from the group consisting of Sr, Ca, and Ba,
• MB includes Li,
• MC includes one or more elements selected from the group consisting of B (boron), Al, Si, Ga, In, and Sc,
• D is selected from the group consisting of N (nitrogen), O (oxygen), F (fluorine), Cl, Br, and I (iodine), and includes one or more elements including N (nitrogen),
• Re includes one or more elements selected from the group consisting of Eu, Ce, Pr, Nd, Sm, Tb, Dy, Ho, Er, Tm, and Yb,
• MY includes one or more elements selected from the group consisting of Y, La, and Lu,
• MZ includes one or more elements selected from the group consisting of Na, K, and Rb,
• MW includes one or more elements selected from the group consisting of Mg and Zn, and
• a, b, d, x, y, z, and w each independently satisfy the following formulas:
• 0.7≤a≤1.3,
• 0.7≤b≤1.3,
• 3.2≤d≤4.8,
• 0.0<x≤0.2,
• 0.0<y≤0.5,
• 0.0≤z≤0.5,
• 0.0<x+y+z<a, and
• 0.0≤w≤0.5.