borosilicate glass,pyrex used as glass lens,flood lens,flashlight lens,Fresnel lens, Plano lens 1. Raw material: ... . Function: Guide of the light beams e.g. Molded lens, flood lens,Fresnel lens, Plano lens, Bi convex lens, Bi concave ... . Application: Lighting system, Electronics, Electrical apparatus, Industries, e.g. Lamp cover, Lamp shade, Stage lens, LED lens, Reflector lens, Sight lens, Front ...