Light emitting device

A light emitting device comprising:

• a light emitting element that emits ultraviolet light or short-wavelength visible light;
• and
• at least two phosphors that are excited by the ultraviolet light or short-wavelength visible light to emit first visible light, wherein the first visible light emitted by the phosphors are in a complementary-color relation with each other and white light is obtained by adding and mixing colors of the first visible light, said at least two phosphors comprising:
• a first phosphor comprising a composition represented by the formula:
• M1O2.aM2O.bM3X2:M4
• wherein M1 is at least one element selected from the group consisting of Si, Ge, Ti, Zr, and Sn;
• M2 is at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn;
• M3 is at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn;
• X is at least one halogen element;
• M4 is at least one element essentially including Eu2+ selected from the group consisting of rare-earth elements and Mn;
• a is in the range of 0.1≦a≦1.13;
• and b is in the range of 0.1≦b≦0.25;
• and
• a second phosphor that emits second visible light that is in a complementary-color relation with the first visible light emitted from the first phosphor.