… of any material, unmounted, other than such elements of glass not optically worked. …
Explanatory notes
… of any material, unmounted, other than such elements of glass not optically worked. 9001.10 ‑ Optical fibres, optical … Prisms and lenses (including compound prisms and lenses assembled by means of an adhesive cement), whether or not … a surface). (3) Ophthalmic lenses . These lenses may be aspherical, spherical, sphero‑cylindrical, uni‑focal, …