ROLLED METAL PRODUCT USED AS A LIGHT-GUIDING STRUCTURE

摘要

The invention concerns a light-guiding metal structure in the form of a roll ed product which is provided with at least one structured surface by means of a rolling process. The structured surface is a rib pattern which extends in th e direction of rolling and has a tooth-shaped cross section. The tooth-shaped cross section forms a periodic structure in the form of a row of adjacent triangles, the bases of these triangles following one another. The one later al side of any triangle projects at an angle .alpha. from the base ab and the other lateral side projects at an angle .beta., and the base of each triangl e has a length l, .alpha. being an angle of between 5 and 60~, .beta. being an angle of between 10 and 90~, and the length l being between 0.01 mm and 10 m m.