Optical signal transmitting apparatus, optical data bus system and signal processing apparatus

摘要

The utilization efficiency of light is to be enhanced. Optical signals are brought to incidence on incidence/emission portions provided on the end face of a light transmitting medium where a reflective optical diffusion layer is arranged. The incident optical signals, upon reaching the reflective optical diffusion layer, are diffusively reflected in both vertical and lateral directions. Of the diffused light, not only the part of it coming directly incident on each of the plural incidence/emission portions formed on the end face of the light transmitting medium but also the rest propagates while being reflected by sides of the light transmitting medium and is emitted from the plural incidence/emission portions.