| 摘要 |
PROBLEM TO BE SOLVED: To provide a light-emitting device that suppresses an increase in temperature of a light guide to achieve higher luminous efficiency.SOLUTION: There is provided a light-emitting device 100 includes a substrate 20, and a light-emitting element 10 installed on the substrate 20 through an electric connection member 30 and joining member 31, where the light-emitting element 10 includes hole parts (holes 50) directed from a joining surface with the substrate 20 to the inside of the light-emitting element, and the joining member 31 also fills the holes 50. |
