LIGHT-EMITTING DEVICE

PROBLEM TO BE SOLVED: To provide a light-emitting device which inhibits temperature rise of a light emitting element.SOLUTION: A light-emitting device 10 includes: a substrate 14 on which a light-emitting element 12 is mounted; a case 22 for holding the substrate 14; and a cover part 24 provided on the case 22 and covering the light-emitting element 12. The cover part 24 has a cylindrical part 80 in which a light guide body 25 for guiding light emitted from the light-emitting element 12 can be mounted. A space S is provided between a rear surface 28 of the substrate 14 and an inner surface 40a of a bottom part 40 of the case 22 so as to overlap with the cylindrical part 80 in an axial direction of the cylindrical part 80. The cover part 24 contacts with a surface of the substrate 14 along each long side of the substrate 14.SELECTED DRAWING: Figure 8 【課題】発光素子の温度上昇を抑えることができる発光装置を提供する。【解決手段】発光装置１０は、発光素子１２が実装された基板１４と、基板１４が保持されるケース２２と、ケース２２に設けられて発光素子１２を覆うカバー部２４とを備える。カバー部２４は、発光素子１２から発光された光を導く導光体２５を内部に装着可能な筒部８０を有する。基板１４の裏面２８とケース２２の底部４０の内面４０ａとの間には、筒部８０と筒部８０の軸線方向に重なるように隙間Ｓが設けられ、カバー部２４は、基板１４の各長辺に沿って基板１４の表面に当接している。【選択図】図８