Transparent, dyed cooktop having improved color display capability, and method for producing such a cooktop
AssigneeSchott AG
InventorsFriedrich Siebers, Ulrich Schiffner, Wolfgang Schmidbauer, Klaus Schönberger
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Abstract
Transparent, dyed cook top or hob with improved color display capability, consisting of a glass ceramic with high quartz mixed crystals as predominant crystal phase, whereby the glass-ceramic contains none of the chemical refining agents arsenic oxide and/or antimony, with transmission values of greater than 0.1% in the range of the visible light within the entire wavelength range greater than 450 nm, a light transmission in the visible of 0.8-2.5% and a transmission in the infrared at 1600 nm of 45-85%.
Claims24
1-23. (canceled)
A transparent, dyed cook top or hob with improved color display capability, comprising a glass-ceramic which comprises high quartz mixed crystals as predominant crystal phase whereby the glass ceramic is substantially free of the chemical refining agents arsenic oxide and/or antimony, and whereby the high quartz mixed crystals are characterized by transmission values of greater than 0.1% within the entire wavelength range of visible light larger than 450 nm, a visible light transmission of 0.8 to 2.5% and an infrared transmission at 1600 nm of 45-85%.
A method for manufacture of a transparent, dyed cook top or hob with improved color display capability comprising a glass ceramic which comprises high quartz mixed crystals as a predominant crystal phase, whereby the glass ceramic is substantially free of the chemical refining arsenic oxide and/or antimony and are dispensed and the cooking area is set on transmission values of greater than 0.1% in the area of visible light within the entire wavelength range of greater than 450 nm, a visible light transmission of 0.8 to 2.5% and an infrared transmission at 1600 nm of 45-85%.
Dependencies are inferred from the claim text.