Patent ID: 7688401

Claim:
A light source element, comprising: a light waveguide, comprising: a light exit face; a surface lying opposite the light exit face; a plurality of lateral surfaces, each of the plurality of lateral surfaces connecting the light exit face and the surface opposite the light exit face; and more than two light entry faces, each one of the more than two light entry faces being separated and remote from the other light entry faces, wherein at least one member of a group consisting of each of the lateral surfaces and the surface opposite the light exit face is covered with reflectors that at least one of reflect and diffusely return light; and wherein each light entry face is formed by a portion of at least one member of the group of surfaces and comprises an opening in a reflector that corresponds to a portion of an aperture region at the light waveguide, and each light entry face is positioned at an acute angle relative to one of the principal directions of extent of the waveguide; and light infeed units positioned in front of more than one of the light entry faces, each light infeed unit comprising at least one light source, so that light radiation emitted during operation of the light source enters the light waveguide at an oblique angle relative to one of the principal directions of extent of the waveguide, wherein a projection of the light waveguide formed by a light entry face and at least some members of the group consisting of the lateral surfaces, the light exit face, and the surface opposite the light exit face, is present at every light infeed unit.