Composite disc

Abstract

Composite disk comprising a first disk, a second disk, and a functional assembly, wherein the functional assembly is arranged between the first disk and the second disk, wherein the functional assembly comprises a functional element (20; 55) with several segments, wherein the segments can each be switched from a first state to a second state and vice versa depending on an electrical voltage applied to the respective segment, wherein the segments have different optical properties in the first state than in the second state, wherein the functional assembly comprises a first group of contact surfaces (8; 9; 10; 23; 25; 26; 27; 28; 29) and a second group of contact surfaces (11; 12; 13; 14; 15; 16; 17; 18; 19; 24; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 50; 51; 52; 53; 54) comprising the contact surfaces (8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34;35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 50; 51; 52; 53; 54) each can be electrically connected to a control unit (7) via electrical connection channels (1; 2; 3; 4, 5, 6, 21, 22), wherein the electrical voltage can be applied to the segments via the contact surfaces (8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 50; 51; 52; 53; 54), wherein the first group (8; 9; 10; 23; 25; 26; 27; 28; 29) is arranged between the first disk and the functional element (20; 55), characterized in that the second group (11; 12; 13; 14; 15; 16; 17; 18; 19; 24; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 50; 51; 52; 53; 54) is arranged between the functional element (20; 55) and the second disk and the number of segments corresponds to the square of half the electrical connection channels (1; 2; 3; 4; 5; 6; 21;22) corresponds.;