Patent ID: 7142189

Claim:
An arrangement for illuminating at least one switch surface ( 3 ) provided on a transparent panel ( 1 ), said arrangement comprising at least one light source ( 9 ) and a touch sensor switch ( 5 ) arranged behind the at least one switch surface ( 3 ), wherein the at least one light source ( 9 ) is positioned and spaced from the at least one switch surface ( 3 ) so that the at least one light source ( 9 ) radiates light into the transparent panel ( 1 ) or into a light waveguide ( 15 , 16 , 17 , 19 , 20 ) arranged on the transparent panel ( 1 ), said light of the at least one light source ( 9 ) guided into the transparent panel or the optical waveguide is guided toward the at least one switch surface ( 3 ) and conducted into a region between the at least one switch surface ( 3 ) and a sensor element ( 7 ) of the touch sensor switch ( 5 ), wherein said light waveguide comprises a transparent adhesive strip, which is glued on at least one of the panel ( 1 ) and a circuit board ( 6 ) carrying the at least one light source ( 9 ) so that light of the at least one light source 99 ) is coupled into said transparent adhesive strip, a plurality of optical fibers and wherein light from a common lighting device is guided to the light waveguide by means of said optical fibers.