| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting device that can easily control light distribution characteristics in a width direction of a road, a lighting unit, and lighting equipment. <P>SOLUTION: In the lighting device, an optical lens 1 diffuses light emitted from a light emitting surface by being reflected with a light reflecting surface in a diffusion direction orthogonal to both an optical axis and a designated direction, and condenses light directly emitted from the light emitting surface by being incident from a light incident surface in a light-condensing direction separating from the optical axis to a designated direction side, and diffuses the light in the diffusion direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
