Phosphor, method for manufacturing same, light emitting device, and image display device

A phosphor comprising:

• an inorganic compound comprising:
• a crystal represented by Sr3Si8O4N10 or an inorganic crystal having an identical crystal structure to a crystal structure of the crystal represented by Sr3Si8O4N10, into which M element is solid-solved (here, M is one or more kinds of elements selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb),
• wherein the inorganic crystal comprises:
• at least A element, D element, and X element (here, A is one or more kinds of elements selected from the group consisting of Li, Mg, Ca, Sr, and Ba;
• D is one or more kinds of elements selected from the group consisting of Si, Ge, Sn, Ti, Zr, and Hf;
• and X is one or more kinds of elements selected from the group consisting of O, N, and F),
• wherein the inorganic crystal, if necessary, comprises:
• E element (here, E is one or more kinds of elements selected from the group consisting of B, Al, Ga, In, Sc, Y, and La), and
• wherein the inorganic crystal is a crystal having a composition represented by A3D8X14 or A3(D, E)8X14.