| abstract |
A light emitting device includes a package having side walls which define a recess, a light emitting element arranged in the recess, and a sealing member which seals the light emitting element. The sealing member includes a first portion which contains a fluorescent material and covers the light emitting element, and a second portion which does not contain a fluorescent material and is arranged over the first portion. The fluorescent material is a fluoride fluorescent material activated with tetravalent manganese represented by the following formula (I). The particles of the fluorescent material has a surface region with a tetravalent manganese ion concentration is lower than inner side. n A 2 [M 1-b Mn 4+ b F 6 ] (I)n n In the formula (I), A is a cation which contains K + and may contain at least one selected from the group consisting of Li + , Na + , Rb + , Cs + , and NH 4 + , M is at least one of Group 4 and Group 14 elements, and 0<b<0.2. |