| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device suppressed in generation of bright lines on an irradiated surface.SOLUTION: A lighting device 10 includes a light source 12 and a second reflection body 17. The second reflection body 17 includes: a cylindrical reflection member 47 at the inner surface of which a reflection surface 51 whose diameter is enlarged toward a light axis direction y of the light source 12; an incident opening 48 set at a side opposite to the light axis direction y of the reflection member 47; and an outgoing opening 49 set in the light axis direction y of the reflection member 47. The incident opening 48 faces to a light source 12. The reflection surface 51 whose diameter is enlarged toward the light axis direction y is formed successionally formed to an end part 47a at the side of the incident opening 48 of the reflection member 47. |
