| 摘要 |
PROBLEM TO BE SOLVED: To provide a light-emitting device including a thin wavelength conversion layer having a large heat resistance.SOLUTION: The light-emitting device includes a light-emitting element 11 mounted on a substrate, a wavelength conversion layer 13 arranged on the light-emitting element 11, and a planar member 14 mounted on the wavelength conversion layer 13. The wavelength conversion layer 13 includes a base material containing an inorganic material, and phosphor particles dispersed into the base material. The planar member 14 includes a plurality of through holes 23 penetrating in the thickness direction, and at least some of the through holes 23 are filled with the substrate containing an inorganic material. Since a gas produced from the inorganic material, by chemical reaction when the raw material of base material is heated, can be discharged from the through holes, the wavelength conversion layer 13 can be formed of a base material of inorganic material. |
