- Binoculars manufacturing
- Camera lenses manufacturing
- Comparators, optical, manufacturing
- Gauges, machinist’s precision tool, optical, manufacturing
- Glasses, field or opera, manufacturing
- Gratings, diffraction, manufacturing
- Gun sighting and fire control equipment and instruments, optical, manufacturing
- Gun sights, optical, manufacturing
- Instrument lenses manufacturing
- Interferometers manufacturing
- Laboratory analytical optical instruments (e.g., microscopes) manufacturing
- Lens coating (except ophthalmic)
- Lens grinding (except ophthalmic)
- Lens mounting (except ophthalmic)
- Lens polishing (except ophthalmic)
- Lenses (except ophthalmic) manufacturing
- Loupes (e.g., jewelers) manufacturing
- Magnifying glasses (except corrective vision-type) manufacturing
- Magnifying instruments, optical, manufacturing
- Microscopes (except electron, proton) manufacturing
- Mirrors, optical, manufacturing
- Night vision optical device manufacturing
- Optical alignment and display instruments (except photographic) manufacturing
- Optical gun sighting and fire control equipment and instruments manufacturing
- Optical test and inspection equipment manufacturing
- Periscopes manufacturing
- Photographic lenses manufacturing
- Prisms, optical, manufacturing
- Projection lenses manufacturing
- Reflectors, optical, manufacturing
- Sights, telescopic, manufacturing
- Telescopes manufacturing
- Theodolites manufacturing
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