| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rotary lighting device having a first reflection surface and a second reflection surface for condensing a light irradiated from a light source, efficiently to the first reflection surface.SOLUTION: A rotary lighting device 100 reflects the light irradiated from an LED 70 toward a first reflection surface 130a and the light reflected by a second reflection surface on the first reflection surface 130a, and emanates the reflected light to the outside from the inside of a first reflection wall 130 and a second reflection wall 140. The second reflection surface includes: an arcuate third reflection surface 150a bulging to the side opposite to the first reflection surface 130a in a front view with respect to a rotary opening region 64 and made smaller than the first reflection surface 130a; and a fourth reflection surface 160a-160a of a linear shape bulging outward, in a front view of a rotary opening 64, from the two side end portions of the third reflection surface 150a along the chord direction of the third reflection surface 150a.</p> |
