Since the 1990s, Imi Knoebel has been working intensively with aluminum as an image carrier. He uses aluminum plates and profiles as autonomous painting surfaces layering them on top of each other to create relief-like works. The layering of individual elements has been one of Knoebel’s main techniques since the 1980s. In Lentoi phosphorescent panels almost completely cover a lower layer of surrounding painted aluminum strips. This creates an interplay of visibility and invisibility, which Knoebel explores also in other works, such as the so-called Sandwich-pictures.
The same group of works also includes: 16 Farben auf Blanc de titane and Venera (1996).