LIGHT-EMITTING DEVICE

摘要

A light-emitting device (1) having a base (10) and a light-emitting element (11) placed on the base (10) includes a first sealing material layer (12) covering the light-emitting element (11) and a second sealing material layer (13) surrounding a side surface of the first sealing material layer (12), wherein the refractive index of the first sealing material layer (12) and the refractive index of the second sealing material layer (13) are different from each other. The light-emitting device (1) is capable of controlling a radiation pattern from the light-emitting element (11) by controlling the refractive index of the first sealing material layer (12) and the refractive index of the second sealing material layer (13). This can facilitate the miniaturization and reduction in thickness of the light-emitting device (1), and prevent the decrease in a light output efficiency of the light-emitting device (1).