Detailed Product Description 1.Raw material: Borosilicate glass, Pyrex, Borofloat, Optical glass. Crystal glass2. Processing: by Molding, Grinding, Polishing3. ... lens, Spherical lens, Aspheric lens, Meniscus lens,optical lens, glass lens6. Application: Lighting system, Electronics, Electrical apparatus, Industries ... lens, Spot lens, Lighting shade, Lighting cover,glass cover,glass shade,glass sheet