| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting system achieving a relatively flexible illumination distribution according to an application.SOLUTION: The lighting system includes reflectors 403a, 403b having a reflecting surface with a substantially arch-shaped perpendicular cross section in the longitudinal direction and forming a substantially cylindrical part reflecting a part of an emitting light from an LED chip 408, and irradiates an irradiated region with a synthetic light of a direct light from the LED chip 408 and a reflection light from the reflecting surface, wherein a curved surface between optional two points a, g of the reflectors is changed under a condition of forming a reflective region in which the reflection light does not have a peak of illuminance in the irradiated region. |
