- Optical instruments and apparatus (3)
- Lenses, optical: all types except ophthalmic (2)
- Microscopes, except electron, proton, and corneal (3)
- Sighting and fire control equipment, optical (1)
- Light sources, standard (1)
- Optical elements and assemblies, except ophthalmic (3)
- Optical test and inspection equipment (8)
- Prisms, optical (1)
