: Wippermann, Frank; Duparre, Jacques; Dannberg, Peter; Bräuer, Andreas

Abstract
The invention relates to an optical lamination (100) having a first layer (102), a second layer (104), a first spacer part (106) associated with the first layer, and a second spacer part (108) associated with the second layer, wherein the two spacer parts (106; 108) comprise tongue and groove (110; 112) for engaging in a lamination direction of the optical lamination, in order to produce a connection between the first and the second spacer part (106; 108) and a space between the first and second layer (102; 104) in the direction of the lamination, and wherein the first and the second spacer part (106; 108) are connected to each other by means of an adhesive between the tongue (112) and groove (110).