Detailed Product Description 1. Raw material: Borosilicate glass, Pyrex, Optical glass. Crystal glass 2. Processing: by Molding, Grinding, Polishing3. Surface quality: ... mold marks, no inside bubble and dirts, 5. By AR coating: the lens has better transmission more than 95% or 99 ... , Molded lens, Spot lens, Lighting shade, Lighting cover,glass reflector,reflective lens,glass lenses,optical lenses