| 摘要 |
PROBLEM TO BE SOLVED: To provide a small light source device which has good heat radiation characteristics though a plurality of light sources are arranged on a plane with a predetermined interval, and can reduce a cross-section area of projection light flux from the plurality of light sources.SOLUTION: A light source device 1 includes a first and second reflection parts each having a reflection surface, and a plurality of light sources from 11-1 to 11-16. The plurality of light sources are arranged around the first reflection part 10, and the reflection surface of the first reflection part and the reflection surface of the second reflection part 9 are placed to face each other, so that light beams emitted from the plurality of light sources are reflected by the second reflection part, and then come to the first reflection part. |
