| 摘要 |
Apparatus for injecting light into a light transmitting substrate or window, including an optical arrangement secured to one of the surfaces of the substrate or window for directing light into the substrate or window at an incident angle selected for propagation of light via total internal reflection (TIR) along the substrate or window. The optical arrangement comprises: (1) refractive media transmissive to light from a light source, the refractive media being bounded on a first end by coplanar exit and input surfaces and at a second end by a non-planar reflective surface, and (2) at least one coupling material to optically and physically couple the exit and input surfaces to the substrate or window, the refractive media and the at least one coupling material having a refractive index greater than air. |
