Abstract: A cooking apparatus with a cooktop composed of a glass or glass-ceramic material is provided. The cooking apparatus includes a heating element and a lighting element that are disposed in the region below the underside of the cooktop. The heating element is applied to the underside of the cooktop indirectly by a pressing device or directly by pre-stressing one or a plurality of spring elements. The lighting element and the heating element are disposed on a common support section of the pressing device in such a way that they are adjustable with an oscillation of the cooktop.

Abstract: The present disclosure relates to bendable and/or foldable articles and uses thereof and to a method of providing bendable and/or foldable articles. The articles are of translucent and brittle material, such as glass, glass ceramic, ceramic or crystals. The articles may be used as a display cover such as a protecting cover in displays in, for example, smartphones, tablet computers, or TV devices. The articles may also be used as a substrate for electronic components, such as OLEDs or LEDs.

Abstract: A transistor outline (TO) housing comprising a base part having a mounting area for a thermoelectric cooler, wherein the base part has at least two feedthroughs for connecting an optoelectronic component. A support extends from the upper surface of the base part, which support has at least two conductor traces arranged thereon, each of which is connected to a respective one of the feedthroughs for connecting the optoelectronic component.

Abstract: A feed-through, in particular a feed-through which passes through part of a housing, in particular a battery housing, for example made of metal, in particular light metal, for example aluminum, an aluminum alloy, AlSiC, magnesium, an magnesium alloy, titanium, a titanium alloy, steel, stainless steel or high-grade steel. The housing part has at least one opening through which at least one conductor, in particular an essentially pin-shaped conductor, embedded in a glass or glass ceramic material, is guided. The base body is, for example, an essentially annular-shaped base body and is hermetically sealed with the housing part such that the helium leakage rate is smaller than 1*10?8 mbar l/sec.

Abstract: A method and a device are provided for detecting defects in coils, such as rollable ultra-thin glass, rollable glass films, rollable laminated ultra-thin glasses or films, rollable solar cells, and rollable organic light emitting diodes (OLEDs). The method includes: providing a glass ribbon in a coil with a shape of a hollow cylinder with two end faces and one ribbon surface; introducing light into a first of the two end faces so that the light is directed from a light entrance side at the first of the two end faces to a light exit side at a second of the two end faces and exits from the light exit side; detecting the light at the light exit side with a first optical imaging detector so that, if a crack is present, the crack is seen as a shading in an image captured by the first optical imaging detector.

Abstract: A description is given of a coloured, transparent, lithium aluminium silicate glass-ceramic and also of the use thereof, said glass-ceramic possessing a light transmission Y of 2.5% to 10% and a spectral transmission ?(at 465 nm) of more than 1.0%.

Abstract: Vitreous or at least partly crystallized sealing material is provided. The sealing material is from the system SiO2—B2O3—CaO—MgO, which is free from BaO and/or SrO and which has an improved coefficient of thermal expansion and improved crystallization properties. The sealing material is employed to produce joint connections, electrical feedthroughs, and/or as a barrier layer.

Abstract: A dielectric mirror is provided that, on the one hand exhibits a high destruction threshold when being irradiated with ultrashort high-power laser pulses, and on the other hand has a large bandwidth of group delay dispersion. The dielectric mirror includes a layer stack with a sequence of layers having different refractive indices, which act as a reflecting interference filter, wherein the layers are formed of at least three different materials exhibiting different destruction thresholds.

Abstract: An operating panel for a household appliance is provided with at least one user interface. The operating panel includes a planar support with an outer support surface facing an external region; a planar glass or glass-ceramic substrate with an outer substrate surface facing the external region and an opposite-lying inner substrate surface facing away from the external region and facing the outer support surface; a display element affixed to the support for luminous indication of information, which is preferably disposed on the outer support surface; and a sensor arrangement having at least two sensors, each of which comprises at least one electrode and is disposed on the inner substrate surface, for interaction with a user located in the external region.

Abstract: The present invention relates to an improved cordierite glass-ceramic. In order to improve the materials properties, it is proposed that the glass-ceramic comprising SiO2, Al2O3, MgO and Li2O contains cordierite as main crystal phase and that a secondary crystal phase of the glass-ceramic comprises high-quartz solid solution and/or keatite solid solution. The invention further relates to a process for producing such a glass-ceramic and the use of such a glass-ceramic.

Abstract: A lead-through or connecting element is provided that includes an assembly having a carrier body of a high-temperature alloy, a functional element, and an at least partially crystallized glass. The crystallized glass is between a portion of the functional element and a portion of the carrier body. The carrier body subjects the crystallized glass to a compressive stress of greater than or equal to zero, at a temperature from at least 20° C. to more than 450° C. Also provided are a method for producing a lead-through or connecting element, the use of such a lead-through or connecting element, and to a measuring device including such a lead-through or connecting element.

Abstract: The present disclosure relates to a component for low-temperature applications, a process for producing such a component, and the use thereof.

Abstract: A display device is provided that is a transparent, colored glass-ceramic with a display face on the front, an illumination face on the back, and at least one light-emitting element being disposed in the region of the illumination face. The display device further includes a color compensation filter in the form of a color layer introduced directly or indirectly on the glass ceramics.

Abstract: A glass ceramic substrate made of a transparent, colored LAS glass ceramic is provided. The glass ceramic has a gradient layer with keatite solid solution and an underlying core with high-quartz solid solution as predominant crystal phase. The keatite solid solution in a depth of 10 ?m or greater exceeds 50% of the sum of the high-quartz solid solution proportion and keatite solid solution proportion. The ceramization includes a crystal transformation step, in which the high-quartz solid solution is transformed at a maximum temperature in the range of 910° to 980° and a time period of between 1 and 25 minutes in part into the keatite solid solution.

Abstract: An optical arrangement is provided that includes a first optical element comprising a light guide that has a bevel face and a second optical element. The first optical element conducts light by total internal reflection at a wall and has a light entry area defined by a non-beveled end face and a light exit area formed by a surface area of the wall at that end proximate the bevel face. The second optical element has a light entry aperture arranged on or facing the light exit area. The light entry area has a width x and the light entry aperture has a height z, which meet the following relationship: x/z?1.5·[tan(90°??/2)?tan(90°?(2·[?/2+90°]?[180°?arcsin(1/n)]))]?1. Herein, ? denotes the deflection angle of the light at the bevel face and n denotes the refractive index of the material of the first optical element.

Abstract: A feed-through for high external pressure applications and methods of producing are provided. The feed-through includes a base body, a through-hole extending through the base body, and a functional element. The functional element is arranged inside the through-hole. The functional element is connected to the base body in fluid-tight manner with a pressure compensator and an insulating material that at least partially surrounds the functional element and establishes the fluid-tight connection. The pressure compensator increases pressure resistance of the fluid-tight connection of the functional element to the base body against pressure.

Abstract: The present disclosure relates to a method and device for cutting glass tubes with a length L from a glass tubing that moves at a feed rate v1. The glass tubing is investigated for defects with an analytical device. The analytical device determines whether a glass tube to be separated is either defect-free (case 1) or contains defects (case 2). In case 1, a defect-free glass tube of the length L is separated from the glass tubing. In case 2, the device and method of the present disclosure determines a distance LA in the lengthwise direction between the defect and a free end of the glass tube to be separated. The distance LA is determined from the portion of the defect at the greatest distance from the free end of the tube. The device and method of the present disclosure then separates a piece of a glass tube or a glass tube that contains defects from the glass tubing at a distance LS from the free end of the glass tube, as a function of LA.

Abstract: A composite includes a component and a glass or glass ceramic material. The component has a first coefficient of expansion ?1 and the glass or the glass ceramic material has a second coefficient of expansion ?2. The glass or the glass ceramic material has a surface with a thickness and thickness differences (TTV) within the surface, and thickness fluctuations (LTV). The composite has a residual stress in the glass or the glass ceramic material (WARP), and a geometric and material-physical degree of compatibility KG?4.

Abstract: A method for the production of glass or glass ceramic elements from flat glass or glass ceramic parts is provided where the edges of the glass or glass ceramic elements are treated by a combination of two processes. The flat glass or glass ceramic element with an edge surface connecting the two side surfaces is produced. The edge surface has at least one first elongated, strip-shaped edge region and at least one second elongated strip-shaped edge region, which are formed by a ground edge. The edge regions extend in the longitudinal direction along the edge surface and along the side surfaces. The first edge region has elongated parallel filamentary damages that are parallel and adjacent to one another and, in particular, spaced apart equidistantly, in the longitudinal direction thereof extending transversely to the side surfaces and along the surface of the first edge region.

Abstract: The invention relates to a housing for an optoelectronic device and to a method for producing such a housing. For producing a lid for the housing, an infrared-transparent material is used, into which at least one glass window is integrated.