LIGHT RECEIVING BODY FOR OPTICAL FIBER TYPE LIGHT GUIDE AND LIGHT SOURCE OPTICAL SYSTEM INCLUDING THIS BODY

摘要

PURPOSE:To uniformize and average the quantity of emitted light furthermore by providing a second optical transmission part whose one end is connected to the other end of a first optical transmission part and the other end receives the light from a prescribed light source and providing the second optical transmission part with many optical fibers extended from the incidence plane to the exit face and setting their positional relations between the incidence plane and the exit plane at random. CONSTITUTION:One end of the second optical transmission part 61 is the open end and receives the light from a light source 10. When the light from the light source 10 is projected to this open end, the incident light is transmitted to the exit plane through plural optical fibers 61A. Since positional relations of plural optical fibers 61A in the second optical transmission part 61 between the incidence plane and the exit plane are set at random, the dispersion of the intensity of light on the incidence plane is random and light and darkness are uniformly distributed throughout the exit plane. Though the distribution of the quantity of light is not uniform in this state, it is uniformized by incidence on the first optical transmission part 31, and the uniformized light is projected to a light guide 50 connected to the exit plane of the first optical transmission part 31.