Bi-Directional Light Guides, Global Lighting Technologies

This edge-lit LED light guide can produce customized light-emission patterns that differ from the top and bottom surface, allowing luminaires to emit light upward and downward from a single edge-lit source with LEDs on one or two edges while varying the distribution pattern in each direction. One guide option produces an upward batwing distribution while the downward component offers a direct beam spread. Additional options include Lambertian-type downward spreads for diffuse lighting with multiple output angles for the upward distribution. www.glthome.com