Patent ID: 8529109

Claim:
A vehicle lighting unit configured to emit light parallel to an optical axis of the vehicle lighting unit in a front direction, the vehicle lighting unit comprising: a light source configured to emit light obliquely with respect to the optical axis and towards the front direction; and a light guiding body configured to guide the light emitted from the light source so as to emit the light, the light guiding body including: an incidence surface disposed to face the light source with a gap in between, the incidence surface configured to allow the light emitted from the light source to enter the light guiding body; a front surface having an exit surface and a first reflection surface; and a back surface having a second reflection surface, wherein the light guiding body is configured such that light which enters the light guiding body through the incidence surface is internally reflected by the first reflection surface in a back direction, and light which is internally reflected by the first reflection surface is internally reflected by the second reflection surface in the front direction to the exit surface such that the light is emitted from the light guiding body through the exit surface and the light is parallel with the optical axis in the front direction.