Internal room or display panel illumination appts. using daylight or artificial light - has light-conducting plate with light-collecting layer including layer of liquid crystal cells and transmitting part having transmissivity-controlled layer

摘要

A light-conducting plate is formed from a light-collecting (1), a light-conducting, and a light-transmitting (3) part. The intensity of light falling on the light-collecting layer is regulated by a layer of liquid-crystal cells (6). The light passes through the light-conducting part to the transmitting part which also includes a layer of liquid-crystal cells (5) for regulation of the light transmission. The light is emitted corresponding to a defined image of the first liquid crystal lyaer (5) and with respect to the transmissivity of the second liquid crystal layer, such that the brightness, and the appearance of the appts. can be controlled. ADVANTAGE - Provides even brightness through room. Can be formed from single plate of PMMA allowing simple assembly.