| 1/00 | Optical elements characterised by the material of which they are made (compositions of optical glasses C03C 3/00); Optical coatings for optical elements |
| 1/02 | Optical elements characterised by the material of which they are made (compositions of optical glasses C03C 3/00); Optical coatings for optical elements made of crystals, e.g. rock-salt, semiconductors (G02B 1/08 takes precedence) |
| 1/04 | Optical elements characterised by the material of which they are made (compositions of optical glasses C03C 3/00); Optical coatings for optical elements made of organic materials, e.g. plastics (G02B 1/08 takes precedence) |
| 1/06 | Optical elements characterised by the material of which they are made (compositions of optical glasses C03C 3/00); Optical coatings for optical elements made of fluids in transparent cells |
| 1/08 | Optical elements characterised by the material of which they are made (compositions of optical glasses C03C 3/00); Optical coatings for optical elements made of polarising materials |
| 1/10 | Optical elements characterised by the material of which they are made (compositions of optical glasses C03C 3/00); Optical coatings for optical elements Optical coatings produced by application to, or surface treatment of, optical elements (G02B 1/08 takes precedence) |
| 1/11 | Optical elements characterised by the material of which they are made (compositions of optical glasses C03C 3/00); Optical coatings for optical elements Optical coatings produced by application to, or surface treatment of, optical elements (G02B 1/08 takes precedence) Anti-reflection coatings |
| 1/12 | Optical elements characterised by the material of which they are made (compositions of optical glasses C03C 3/00); Optical coatings for optical elements Optical coatings produced by application to, or surface treatment of, optical elements (G02B 1/08 takes precedence) by surface treatment, e.g. by irradiation |
| 3/00 | Simple or compound lenses (artificial eyes A61F 2/14; spectacle lenses or contact lenses for the eyes G02C; watch or clock glasses G04B 39/00) |
| 3/02 | Simple or compound lenses (artificial eyes A61F 2/14; spectacle lenses or contact lenses for the eyes G02C; watch or clock glasses G04B 39/00) with non-spherical faces (G02B 3/1 takes precedence) |
| 3/04 | Simple or compound lenses (artificial eyes A61F 2/14; spectacle lenses or contact lenses for the eyes G02C; watch or clock glasses G04B 39/00) with non-spherical faces (G02B 3/1 takes precedence) with continuous faces that are rotationally symmetrical but deviate from a true sphere |
| 3/06 | Simple or compound lenses (artificial eyes A61F 2/14; spectacle lenses or contact lenses for the eyes G02C; watch or clock glasses G04B 39/00) with non-spherical faces (G02B 3/1 takes precedence) with cylindrical or toric faces |
| 3/08 | Simple or compound lenses (artificial eyes A61F 2/14; spectacle lenses or contact lenses for the eyes G02C; watch or clock glasses G04B 39/00) with non-spherical faces (G02B 3/1 takes precedence) with discontinuous faces, e.g. Fresnel lens |
| 3/10 | Simple or compound lenses (artificial eyes A61F 2/14; spectacle lenses or contact lenses for the eyes G02C; watch or clock glasses G04B 39/00) Bifocal lenses; Multifocal lenses |
| 3/12 | Simple or compound lenses (artificial eyes A61F 2/14; spectacle lenses or contact lenses for the eyes G02C; watch or clock glasses G04B 39/00) Fluid-filled or evacuated lenses |
| 3/14 | Simple or compound lenses (artificial eyes A61F 2/14; spectacle lenses or contact lenses for the eyes G02C; watch or clock glasses G04B 39/00) Fluid-filled or evacuated lenses of variable focal length |
| 5/00 | Optical elements other than lenses (light guides G02B 6/00; optical logic elements G02F 3/00) |
| 5/02 | Optical elements other than lenses (light guides G02B 6/00; optical logic elements G02F 3/00) Diffusing elements; Afocal elements |
| 5/04 | Optical elements other than lenses (light guides G02B 6/00; optical logic elements G02F 3/00) Prisms |
| 5/06 | Optical elements other than lenses (light guides G02B 6/00; optical logic elements G02F 3/00) Prisms Fluid-filled or evacuated prisms |