Device having reflective and transmissive properties

摘要

A device having transmissive and reflective properties comprising: a transparent material having a first surface and an opposed, second surface wherein the transparent material permits light arriving from a first direction to enter the first surface, transmit through the transparent material, and exit the second surface; and means for reflecting light arriving from a second direction wherein the second direction being opposite the first direction, wherein the sum of the percentage of light being transmitted relative to the amount of light coming from the first direction and the percentage of light being reflected relative to the amount of light coming from the second direction, is greater than 100 percent.