9001 (01/1988-..) Optical fibres and optical fibre bundles, optical fibre cables (excl. made up of individually sheathed fibres of heading 8544), sheets and plates of polarising material, lenses, incl. contact lenses, prisms, mirrors and other optical elements of any material, unmounted (excl. such elements of glass not optically worked)

90011010 (01/1988-..) Image conductor cables of optical fibres (excl. cables made up of individually sheathed fibres of heading 8544) 90011090 (01/1988-..) Optical fibres, optical fibre bundles and cables (excl. made up of individually sheathed fibres of heading 8544 and image conductor cables) 90012000 (01/1988-..) Sheets and plates of polarising material 90013000 (01/1988-..) Contact lenses 90014010 (01/1988-12/1990) Spectacle lenses of glass, both sides finished, not for the correction of vision 90014020 (01/1991-..) Spectacle lenses of glass, not for the correction of vision 90014031 (01/1988-12/1990) Spectacle lenses of glass, both sides finished, for the correction of vision, single focal 90014039 (01/1988-12/1990) Spectacle lenses of glass, both sides finished, for the correction of vision, bi- or multi-focal 90014041 (01/1991-..) Spectacle lenses of glass, both sides finished, for the correction of vision, single focal 90014049 (01/1991-..) Spectacle lenses of glass, both sides finished, for the correction of vision, bi-focal or multi focal 90014080 (01/1991-..) Spectacle lenses of glass (excl. both sides finished) 90014090 (01/1988-12/1990) Spectacle lenses of glass, optically worked (excl. both sides finished) 90015010 (01/1988-12/1990) Spectacle lenses of materials other than glass, both sides finished, not for the correction of vision 90015020 (01/1991-..) Spectacle lenses of materials other than glass, not for the correction of vision 90015031 (01/1988-12/1990) Spectacle lenses of materials other than glass, both sides finished, for the correction of vision, single focal 90015039 (01/1988-12/1990) Spectacle lenses of materials other than glass, both sides finished, for the correction of vision, bi- or multi-focal 90015041 (01/1991-..) Spectacle lenses of materials other than glass, both sides finished, for the correction of vision, single focal 90015049 (01/1991-..) Spectacle lenses of materials other than glass, both sides finished, for the correction of vision (excl. bi-focal or multi focal) 90015080 (01/1991-..) Spectacle lenses of materials (excl. glass), partly finished 90015090 (01/1988-12/1990) Spectacle lenses of materials other than glass (excl. both sides finished) 90019000 (01/2006-..) Lenses, prisms, mirrors and other optical elements, of any material, unmounted (excl. such elements of glass not optically worked, contact lenses and spectacle lenses) 90019010 (01/1988-12/2005) Lenses, prisms, mirrors and other optical elements, of any material, unmounted, for civil aircraft (excl. such elements of glass not optically worked) 90019090 (01/1988-12/2005) Lenses, prisms, mirrors and other optical elements, of any material, unmounted (excl. for civil aircraft, elements of glass not optically worked, contact lenses and spectacle lenses) 9002 Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts of or fittings for instruments or apparatus (excl. such elements of glass not optically worked)