An item of furniture or appliance includes at least one worktop formed from at least one substrate made of a transparent monolithic glazing material and of area larger than 0.7 m.sup.2, equipped with a coating so that the substrate equipped with the coating has a haze higher than 15%, a light transmission T.sub.L lower than 60% and an opacity indicator higher than 85. The item of furniture or appliance also includes at least one heating element, at least one light source to light up one or more zones or one or more elements or displays of the substrate, the source being located plumb with the substrate in order to form a display by projection, or under the substrate in order to form a display by transmission through the substrate, and at least one interface for communicating with at least one element of the worktop.

An item of furniture or appliance includes at least one worktop formed from at least one substrate made of a transparent monolithic glazing material and of area larger than 0.7 m.sup.2, equipped with a coating so that the substrate equipped with the coating has a haze higher than 15%, a light transmission T.sub.L lower than 60% and an opacity indicator higher than 85. The item of furniture or appliance also includes at least one heating element, at least one light source to light up one or more zones or one or more elements or displays of the substrate, the source being located plumb with the substrate in order to form a display by projection, or under the substrate in order to form a display by transmission through the substrate, and at least one interface for communicating with at least one element of the worktop.

A cover glass article includes a glass body having a three-dimensional shape, an inside surface, and an outside surface. Each of the inside and outside surfaces has a surface roughness (R.sub.a) less than 1 nm and is free of indentations having diameters larger than 150 m.

A cover glass article includes a glass body having a three-dimensional shape, an inside surface, and an outside surface. Each of the inside and outside surfaces has a surface roughness (R.sub.a) less than 1 nm and is free of indentations having diameters larger than 150 m.

In one aspect, a method for use in preparing a glass includes performing an ion exchange process by treating the glass with a eutectic mixture including at least a first rubidium salt. In another aspect, a glass is prepared at least in part by performing an ion exchange process by treating the glass with a eutectic mixture including at least a first rubidium salt.

In one aspect, a method for use in preparing a glass includes performing an ion exchange process by treating the glass with a eutectic mixture including at least a first rubidium salt. In another aspect, a glass is prepared at least in part by performing an ion exchange process by treating the glass with a eutectic mixture including at least a first rubidium salt.

A cover glass article includes a glass body having a three-dimensional shape, an inside surface, and an outside surface. Each of the inside and outside surfaces has a surface roughness (R.sub.a) less than 1 nm and is free of indentations having diameters larger than 150 m.

A cover glass article includes a glass body having a three-dimensional shape, an inside surface, and an outside surface. Each of the inside and outside surfaces has a surface roughness (R.sub.a) less than 1 nm and is free of indentations having diameters larger than 150 m.

A composite powder of the present invention includes a glass powder and a ceramic powder, wherein a content of the glass powder is from 30 vol % to 60 vol %, wherein a content of the ceramic powder is from 40 vol % to 70 vol %, wherein the glass powder includes as a glass composition, in terms of mass %, 10% to 30% of SiO.sub.2, more than 20% to 40% of B.sub.2O.sub.3, 20% to 40% of SrO+BaO, 0% to 10% of Al.sub.2O.sub.3, and 0% to 15% of ZnO, and wherein the composite powder is used for a light reflective substrate.

An LED lamp provides a strong red color with a natural appearance. The LED lamp is provided with an LED module and a filter. The LED module includes a blue LED with a main emission peak in the 440 nm to 460 nm wavelength band, a green/yellow phosphor that is excited by light emitted by the blue LED, and a red phosphor that is excited by light emitted by at least one of the blue LED and the green/yellow phosphor. The filter reduces the spectral radiation intensity of at least a portion of the 570 nm to 590 nm wavelength band among light emitted by the LED module.