HIGH EFFICIENCY EJECTION OF LIGHT FROM OPTICAL WAVE GUIDE, BY HOLOGRAPHICALLY PRODUCED LIGHT SCATTERING MEANS

摘要

Radiant electromagnetic energy transmitting apparatus, comprising an elongatedbody (100) consisting of electromagnetic energytransmitting material, the energy injected into the body to travel therein andto be trapped during the travel by total internal reflecting offwalls (101, 102) defined by the body (100), and there being at least one site(107) within the body (100) having variegated surface reliefacting to scatter incident radiant energy for ejection from the body as raysdefining a selected solid angle.