... the light beams e.g. Fresnel lens, Plano lens, Bi convex lens, Bi concave lens, Prism, Cylindrical lens, Ball lens, Spherical lens, Aspheric lens, Meniscus lens6. Application: Lighting system ... apparatus, Industries, e.g. Lamp cover, Lamp shade, Stage lens, LED lens, Reflector lens, Sight lens, Front lens, Refractor, Molded lens, Spot lens, Lighting shade, Lighting cover