Foils can be used instead of fabrics, their smooth surface gives an alternative optic to the lampshade. And by using decorative foils inside the lampshade, special light effects can also be achieved.
Traditionally, silver, gold or copper-coloured foils are often matched to the material of domestic lighting.
The picture shows a table lamp with silver foil.
Further coloured foils: gold, copper, red, orange, magenta, yellow and green are also available.