Patent ID: 7718929

Claim:
A cooking top plate made of a low-expansion glass having a property of transmitting visible light, comprising: a substrate having a first surface facing outside of a cooking device and a second surface facing inside of the cooking device; and a light shielding layer formed on the second surface of the substrate through vapor deposition, wherein the light shielding layer comprises one or more light shielding films and one or more antioxidant films, and a total number of the light shielding films and the antioxidant films is within 2 to 4, wherein the cooking top plate has an average transmittance of 10% or less at wavelength of 0.4 to 0.8 .mu.m and has a transmittance of 0.25% or more at wavelength of 0.45 to 0.75 .mu.m.