9002110025
- Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts of or fittings for instruments or apparatus, other than such elements of glass not optically worked
- Objective lenses
- For cameras, projectors or photographic enlargers or reducers
- Infrared optical unit composed of - a monocrystalline silicon lens with a diameter of 84 mm (± 0.1 mm) and - a monocrystalline germanium lens with a diameter of 62 mm (± 0.05 mm) assembled on a machined aluminum alloy support, of a kind used for thermal imaging cameras