SURFACE LIGHT GUIDE AND PLANAR EMITTER

摘要

The invention relates to a surface light guide (1) which has a radiation exit area (10) extending along a main extension plane of the surface light guide and a light guide area (3) that has scattering locations (4) and a coating (5) disposed on the first main surface (31) of the light guide area. A radiation coupled along the main extension plane and impacting the first main surface (31) after having been scattered at the scattering locations (4) comprises an excessive portion of radiation and the coating (5) reduces in a targeted manner an exit of the excessive portion of radiation from the radiation exit area (10). Further disclosed is a planar emitter (100) comprising such a surface light guide.