Lenses, frames, safety eyewear, ophthalmic instruments & vision testers Optical rails or bases, Optical fiber identifiers, Optical coatings, Optical mounts, Optical slits or apertures, Prisms, Optical blanks, Mirrors, Optical filters, Optical domes, Lens and laser windows, Optical device accessories, Miscellaneous optical components, Industrial optics, Lenses and prisms