Patent ID: 7763832

Claim:
A cook top for a cooking device, said cook top comprising a colorless transparent glass ceramic plate with a cooking surface on a top side thereof, said glass ceramic plate being provided with an opaque coating extending over an underside thereof, except that in at least one window area a window coating is provided on the underside of the glass ceramic plate in place of the opaque coating; in which the window coating comprises a burned-in noble metal preparation containing at least one noble metal and more than 15 wt. % of at least one oxide, in relation to a total amount of the burned-in noble metal preparation; and wherein said at least one noble metal is selected from the group consisting of gold, platinum, palladium, alloys of gold, alloys of platinum and alloys of palladium, and wherein said at least one oxide is selected from the group consisting of base metal oxides and metalloid oxides; and wherein the window coating has an electrical surface resistance over 1 MΩ/□ and in the at least one window area the glass ceramic plate coated with the window coating has a transmission in a range from 1.0 to 21.0% for visible light with wavelengths of from 400 nm to 750 nm and a light scattering in a range from 0.0 to 1.0% for said visible light with said wavelengths of from 400 nm to 750 nm.