Planar lighting unit for vehicle employs optical conductor with total internal reflection elements constructed to provide uniformly-illuminated front surface

摘要

The total internal reflection elements are constructed such that an extended total reflection plane is formed in conjunction with the angles of incidence and reflection of the optical beams. This total reflection plane extends over the plane of extent of the optical conductor (1) such that all light beams coupled into the optical conductor emerge from the front surface (13) of the optical conductor, in accordance with a given light distribution.