| lenses | Linsen |
| converging lenses | Sammellinsen |
| biconvex lens | bikonvexe Linse |
| plano-convex lens | plankonvexe Linse |
| positive meniscus | konkavkonvexe Linse |
| diverging lenses | Streulinsen |
| biconcave lens | bikonkave Linse |
| plano-concave lens | plankonkave Linse |
| negative meniscus | konvexkonkave Linse |