Beam light source having a beam-shaped light guide

A lighting device, comprising:

• a point light source;
• a beam-shaped light guide for dispersing and emitting light emitted from the point light source in a form of beam light;
• a reflecting member having a channel section shape for controlling the light emission direction of light emitted from the beam-shaped light guide;
• and
• a surface light guide plate for receiving light from a beam light source on an end surface and dispersing and emitting the light from either or both of front and rear surfaces in a form of surface light;
• wherein the beam-shaped light guide includes a light incident surface for receiving light emitted from the point light source, a plurality of reflecting surfaces for reflecting light received via the light incident surface in a direction orthogonal to an axial direction of the beam-shaped light guide and opposite to the light incident surface, a light emitting surface, which is orthogonal to the light incident surface, for emitting light reflected on the reflecting surface, and a side surface opposite to the light emitting surface, and
• the reflecting member includes a scattering reflecting surface, which is formed on at least a channel bottom surface, for irregularly reflecting light, the light emitting surface of the beam-shaped light guide is arranged so as to face to the channel bottom surface of the reflecting member, light emitted from the light emitting surface of the beam-shaped light guide is irregularly reflected on the scattering reflecting surface on the channel bottom surface to make viewing angle characteristics uniform, is transmitted from the light emitting surface of the beam-shaped light guide through the side surface, and is incident from the side surface to an end surface of the surface light guide plate in a form of beam light.