LIGHT EMITTER FOR LIGHTING

摘要

PURPOSE:To obtain a light emitter for lighting having a high light emitting efficiency. CONSTITUTION:This light emitter for lighting is a side wall light leaking type, and consists of a multilayer structure obtd. by joining two or more layers of materials having different refractive indices. The layers are formed in such a manner that the refractive index of each layer is successively decreased from the center area to the outside or from the one surface to the opposite surface, and that a layer showing continuous change of refractive index is formed between two layers adjacent to each other.