Abstract: A melt tank for the production of a glass melt having a low portion of bubbles. The melt tank includes an inlet opening, an outlet opening, a floor, at least two side walls that adjoin the floor, a roof. The glass melt having a first bath depth in a melting segment, a second bath depth in a refining segment, and a third bath depth over a threshold between and smaller than the first and second bath depths. An electrically produced first heat energy is supplied via a multiplicity of electrodes that extend into the glass melt and a second heat energy is produced by the combustion of fossil fuel via at least one burner. Also, a method for producing a glass melt.

Abstract: An operating device for a domestic appliance includes an electronic display field, a guide, and an operating element which is movable relative to the electronic display field to set operating conditions of the domestic appliance. The operating element is comprised of multiple parts and includes a sliding ring and a front part resting on the sliding ring. The front part and the sliding ring are coupled to the guide such that the front part is rotatable in a guided manner relative to the sliding ring by the guide.

Abstract: An operating device for a domestic appliance includes an electronic display field, a guide, and an operating element which is movable relative to the electronic display field to set operating conditions of the domestic appliance. The operating element is comprised of multiple parts and includes a sliding ring and a front part resting on the sliding ring. The front part and the sliding ring are coupled to the guide such that the front part is rotatable in a guided manner relative to the sliding ring by the guide.

Abstract: An input device for an electrical device includes a base which can be attached to the electrical device and has at least one light source for producing a measurement beam, and at least one sensor for detecting the reflected measurement beam. An input actuator is movable in relation to the base and includes a plurality of reflection bodies for deflecting the measurement beam onto the sensor. Each reflection body has an entry area for entry of the measurement beam into the reflection body, at least one reflection surface for reflecting the measurement beam, and an outlet area for outlet of the measurement beam from the reflection body.

Abstract: An input device for an electrical device includes a base which can be attached to the electrical device and has at least one light source for producing a measurement beam, and at least one sensor for detecting the reflected measurement beam. An input actuator is movable in relation to the base and includes a plurality of reflection bodies for deflecting the measurement beam onto the sensor. Each reflection body has an entry area for entry of the measurement beam into the reflection body, at least one reflection surface for reflecting the measurement beam, and an outlet area for outlet of the measurement beam from the reflection body.