| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device which can obtain a wide-angle light distribution characteristic necessary for a spot type and a bulb type in conformity to an environment of a facility and a liking of a user, can derive diffusion light sufficiently diffused from the lighting device, and is excellent in design performance.SOLUTION: The lighting device comprises: a power receiving part to which power is supplied from the outside; a power supply part connected to the power receiving part and converting the power to drive power; a light source connected to the power supply part and emitting light by the drive power; a box for accommodating the light source; a light guide part composed of light guide plates protruded from the box and having a plurality of light guide pieces for deriving the light of the light source incident from an incident face from an emission face which is branched by a notch; and a holding part for holding the light guide part. A shape of the light guide part viewed from a vertical direction is formed into a cross shape by making the light guide plates three-dimensionally intersect with one another and combining them, and the holding part holds the cross-shaped light guide part. |
