large fresnel lens

Specification 1. Material: Borosilicate glass, Pyrex, Borofloat, Float glass 2. Process: Grinding, Polishing 3. Surface quality: Optical surface quality and well controlled tolerance 4. Inside quality: Clear and transparent, no mold marks, no bubble and dirts, 5. Function: Guide of the light beams 6. Application: Lighting system e. G. Lamp cover, Lamp shade, Stage lens, LED lens, Reflector lens, Front lens, Refractor, Spot lens, light shade, Light cover, glass cover, glass shade, glass sheet, temper glass. 7. Standard size: Diameter 50mm, 80mm, 110mm, 112mm, 120mm, 130mm, 150mm, 175mm, 200mm, 250mm, 300mm, etc.