| 摘要 |
The invention relates to a solid body consisting of plastic, glass, ceramic or metal, and at least partially comprising a microstructured surface with rows of trapezoidal or wedge-shaped grooves which are oriented in a preferred direction. The invention is characterised in that the grooves have a maximum and minimum heights (H) of between 0 mm and 2 mm, said minima and maxima periodically succeeding each other with amplitudes of between 0.005 and 20 m m, and the distance between the rows of adjacent grooves corresponds to between 0.0002 mm and 5 mm. The dips between the rows can be plane or tapering, and the trapezoidal or wedge-shaped grooves form a wedge angle () of between 15 and 75~. |
