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