196*88mm Optical Instruments fresnel lens for stage light Product Description  Name 196*88mm Optical Instruments fresnel lens for stage light Model BHPA14-96 Type Plano Material Acrylic (PMMA) Size 196*88mm or as your request Thickness 3mm Groove pitch 0.2mm Focal length 14mm Transmission (%): 92 (from 400-1100nm) Index of Refraction 1.491 Operating  Temperature (°C) 80 (Maximum) Technics mould press Cetificate CE, ROHS, Factory Audit, ISO9001:2008 Application fresnel lens for the led light source , serve to increase the the brightness of the effects of. Compared to the same lens and led lights, different from how any set the angle of incident light , or more pieces ofRead More →