LFG - Linear Fresnel Grid

Are a combination of two layers of highly transparent Linear Fresnel Lenses using a crossed orientation in the order to form optical cell. Such an optical cell guides the light of a punctual light source or lamp positioned underneath, e.g. an LED, according to the structure of the Fresnel Lenses. Depending on the application, an optical cell will provide parallel light rays or pre-defined cones of light.