Heating foil for CFL mirrors to protect mirrors in damp rooms against evaporation. The basis of the heating foil is a polyester foil to which a heating element in the form of strips of homogeneous graphite is attached.
Individual heating strips are connected to copper power rails. The rails are connected through a special joint with the supply cable. One of the outer surfaces of the foil is covered with a self-adhesive element used to mount the foil to the mirror.