| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light source device capable of irradiating illumination light with desired color in a desired direction. <P>SOLUTION: In the light source device 100, a first reflection section 30 is formed at a ring-shape, and has a first reflection surface 31a facing outside a ring, and a second reflection surface 31b facing inside the ring. A second reflection section 32 is formed at a ring-shape, and is arranged inside the first reflection section 30, and has a third reflection surface 33a facing outside a ring, and a fourth reflection surface 33b facing inside the ring. Here, an inclined angle θ<SB>1</SB>to the surface 2 of the first reflection surface 31a is smaller than an inclined angle θ<SB>3</SB>to the surface 2 of the third reflection surface 33a. The inclined angle θ<SB>3</SB>to the surface 2 of the third reflection surface 33a is smaller than an inclined angle θ<SB>4</SB>to the surface 2 of the fourth reflection surface 33b. The inclined angle θ<SB>4</SB>to the surface 2 of the fourth reflection surface 33b is smaller than an inclined angle θ<SB>2</SB>to the surface 2 of the second reflection surface 31b. A light-emitting element 10 is arranged outside the first reflection section 30 in a plan view from a surface 2 side. <P>COPYRIGHT: (C)2011,JPO&INPIT |
