... : by Molding, Grinding, Polishing,Coating3. Surface quality: optical surface quality and well controlled tolerance 4. Inside quality: ... 6. Function: Guide of the light beams, glass lens or optical lens by spraying used as lamp shade,lamp cover7. ... Lamp cover, Lamp shade, Stage lens, LED lens, Reflector lens, Sight lens, Front lens, Refractor, Molded lens, Spot lens, Lighting shade, Lighting cover,glass ...