A frame with an aluminium finish outlines the CoeLux LS Ice system, an artificial window with an elongated shape and a large portion of the perceived sky. CoeLux® LS Ice is the brightest window in the LS (Long sky) family, from which a blue sky and a sun with shaded outlines can be seen. Perceived at an infinite distance, the sun of CoeLux LS Ice diffuses a beam of light at 45 degrees that reflect on the frame, creating a slight beam in the opposite direction.