Glass ceramic item with light display

• Main Authors: MALLET CLAIRE, VILATO PABLO, LALUET JEAN-YVES, GUISET PIERRICK
• Format: Patent
• Language: English
• Published: 23.09.2015
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; GLASS; HEATING; JOINING GLASS TO GLASS OR OTHER MATERIALS; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; MINERAL OR SLAG WOOL; SEMICONDUCTOR DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; WEAPONS

The present invention concerns an item having at least one light area, in particular for display, in particular white, said item comprising at least one glass ceramic substrate having a light transmission ranging from 0.8% to 40% and an optical transmission of at least 0.1% for at least one wavelength within the domain ranging from 420 to 780 nm, at least one light source, in particular a light-emitting diode, having an emission peak at a wavelength of between 430 and 490 nm, and at least one luminescent compound emitting in the area of the trichromatic diagram CIExyY (1931) delimited by the following coordinates (x, y): x 0.2658 0.2000 0.3000 0.4229 0.2658 y 0.7243 0.3950 0.3405 0.5756 0.7243 so as to form at least one light area, in particular for display, in particular white, in at least one area of the plate.