Invention Grant
- Patent Title: Glass ceramic cooking plate with locally increased transmission and method for producing such a glass ceramic cooking plate
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Application No.: US14253601Application Date: 2014-04-15
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Publication No.: US10425994B2Publication Date: 2019-09-24
- Inventor: Evelin Weiss , Bernd Hoppe , Martin Spier , Daniela Seiler
- Applicant: SCHOTT AG
- Applicant Address: DE Mainz
- Assignee: SCHOTT AG
- Current Assignee: SCHOTT AG
- Current Assignee Address: DE Mainz
- Agency: Ohlandt, Greeley, Ruggiero & Perle, L.L.P.
- Priority: DE102013103776 20130415; DE102013110566 20130924
- Main IPC: H05B3/68
- IPC: H05B3/68 ; H05B3/74 ; C03C23/00 ; B41M5/26 ; C03C4/00 ; C03C4/02 ; C03C4/08 ; C03C4/10 ; C03C10/00 ; F24C15/10 ; H05B6/12 ; C03B25/00

Abstract:
A volume-colored monolithic glass ceramic cooking plate is provided. The plate includes a first zone in which the coloration of the glass ceramic differs from that of a second, adjacent zone, so that an absorption coefficient of the first zone is lower than the absorption coefficient of the second, adjacent zone and so that integral light transmission in the visible spectral range is greater in the first zone than the integral light transmission of the second, adjacent zone. The light scattering in the glass ceramic of the first zone differs from light scattering in the glass ceramic of the second zone by not more than 20 percentage points, preferably by not more than 5 percentage points.
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