Optical component, useful for a transmission of radiation, comprises a paint-like radiation-protec

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The invention relates to an optical component (33, 51) for the transmission of radiation, a radiant protective layer comprising : (41), comprising at least one oxide material that is selected from the group : germanium dioxide (GeO 2), antimony pentoxide (Sb 2 O5), alumina (2 O3 Al), niobium (Nb 2 O5) (V) oxide, tin oxide (SnO 2), rare earth metal oxides, particularly lanthanum oxide (CaO 2) or cerium oxide (2 O3 La), yttrium oxide (Y 3 2 O), yttrium aluminium oxides, zinc oxide (ZnO), indium oxide (2 O3 in), bismuth trioxide (2 O3 Bi), barium titanate ( [...] 3) and spinels, in particular magnesium aluminate (MgAl 2 O4). The radiant protective layer and the oxide material in a binder is preferably lacquer-likelacquer-like the radiant protective layer (41) contained.