- Optical instruments and apparatus (4)
- Binoculars (1)
- Lenses, optical: all types except ophthalmic (2)
- Microscopes, except electron, proton, and corneal (2)
- Periscopes (1)
- Lens coating and grinding equipment (1)
- Optical elements and assemblies, except ophthalmic (3)
- Optical test and inspection equipment (5)
- Reflectors, optical (2)
- Reflectors, searchlight (1)
