20x55° Degree Led Stripes Surface Lens

The Ledexpert.it LED lenses are lenses designed specifically for LED Star (Seoul LEDs, Luxeon LEDs, Edison Leds, ...). The high collection efficiency reaches 85% of the total flux emitted by the LEDs. A software-optimized aspheric profile enables the generation of several different beam output patterns:narrow,medium,elliptical and wides beams. Lens holders are available in white or black,and provide the proper alignment the between the LEDs and the lenses,set correct distance between the lens and LED. Engineering drawings and all dimensions are in millimeters,holder and lens tolerance,respectively ±0.10 and ±0.05. Average transmittance in visible specturm 400nm~700nm>92%. If necessary,clean lenses with mild soap water and soft cloth. Never use any commercial cleaning solvents on lenses, like alcohol. Please handle and install lenses with wearing gloves,skin oils may damage lens or its optical characteristic.