| 摘要 |
PROBLEM TO BE SOLVED: To increase the cooling efficiency of a light source and suppress the fogging of a lens or an emission surface of a light-emitting element due to the gas vaporized from a component with a simple structure.SOLUTION: A light source device includes: a plurality of semiconductor light-emitting elements 71; a lens array 73 which condenses light emitted from the semiconductor light-emitting elements 71; and a plate-shaped array holder 791 which includes a plurality of partition walls 790c, 790d, and 790e disposed on a first flat surface 790a in the column direction and extending in the row direction, and a light transmission hole 79a as a penetration hole that transits the emission light of the semiconductor light-emitting elements 71. The partition walls 790c, 790d, and 790e have a second flat surface 790f in contact with the lens array 73 in parallel to the first flat surface 790a on the side where the light of the semiconductor light-emitting element 71 is emitted from the first flat surface 790a. There is a gap at least between the partition walls 790c, 790d, and 790e disposed in the column direction. A space 790p in which the semiconductor light-emitting element 71 and the lens array 73 are in contact is connected to the outside.SELECTED DRAWING: Figure 9 |
