Abstract: A method for further processing of a glass tube semi-finished product includes: providing the glass tube semi-finished product, along with tube-specific data for the glass tube semi-finished product; reading the tube-specific data for the glass tube semi-finished product; and further processing of the glass tube semi-finished product including a step of thermal forming carried out at least in sections. At least one process parameter during the further processing of the glass tube semi-finished product including the step of thermal forming carried out at least in sections is controlled as a function of the tube-specific data for the glass tube semi-finished product. In this way, the further processing can be matched more efficiently to the particular characteristics of a glass tube semi-finished product to be processed or a particular subsection thereof, and the relevant characteristics of the particular glass tube semi-finished product do not need to be measured again.

Abstract: A component of glass or glass ceramic having predamages arranged along at least one predetermined dividing line is provided. The dividing line has a row of predamages lying one behind the other. The predamages pass continuously through the glass or the glass ceramic with at least 90% of the predamages being cylindrically symmetrical. The glass or the glass ceramic has a material compaction of at least 1% relative to an actual material density in a radius of 3 ?m about a longitudinal axis of respective pre-damaged points. The relative weight loss per pre-damaged point is less than 10% and the component has a thickness of at least 3.5 mm.

Abstract: A hermetically sealed package includes: at least one cover substrate and a substrate arranged so as to adjoin the at least one cover substrate, which together define at least part of the package, the at least one cover substrate being in a thermally prestressed state and bonded to the substrate adjoining the at least one cover substrate in a hermetically sealing manner by at least one laser bonding line, the at least one cover substrate being made of a material which has a different characteristic value of a coefficient of thermal expansion than the adjoining substrate and a thermal prestress is established in the package; and at least one functional area enclosed in the package.

Abstract: The present disclosure relates to structured protective windows that have high transmission efficiency and can isolate light between different sections of the window. The structured protective windows are less prone to glass breakage compared to conventional protective windows that are typically used to protect and isolate light transmitting and light receiving components in LiDAR exterior automotive applications.

Abstract: A joining connection for an airbag igniter includes an electrically insulating component including a glass and at least two joining partners, the at least two joining partners being kept electrically insulated from one another by the electrically insulating component.

Abstract: The current disclosure relates to highly homogeneous glass sputter targets with a large aspect ratio and a high relative density. The glass sputter targets have properties that are desirable for forming thin films by physical vapor deposition processes such as sputtering.

Abstract: A sealing glass is provided that includes SiO2, Al2O3 having a content of less than 2% by weight, is free of PbO except for unavoidable impurities, a coefficient of linear thermal expansion (?20-300) of more than 10*10?6/K, a dielectric constant (?r) in the range from at least 7.10 to not more than 7.80 at a measurement frequency of 1 MHz and a temperature of 25° C., and a glass transition temperature (Tg) in a range from 400 to 550° C.

Abstract: A suction gripping device for picking up a plurality of substrates which are flat and flexible includes: a base body, which defines a plane; at least one gas suction vacuum module which is arranged on the base body and has at least one gas suction opening configured for withdrawing gas by suction and for generating a first vacuum so as to suction a respective one of the plurality of substrates against the suction gripping device; and at least one gas ejection vacuum module which is arranged on the base body and has a gas ejection opening configured for ejecting gas and for generating a second vacuum so as to suction the respective one of the plurality of substrates against the suction gripping device.

Abstract: A glass has a coefficient of thermal expansion in a temperature range from 20° C. to 300° C. of 4.5 ppm/K or less, and a T4 temperature, defined as the temperature at which the glass has a viscosity of 104 dPa*s, at 1500° C. or more, and having a reboil propensity score of less than 10 measured in a reboil propensity test. The reboil propensity score is determined as a number of bubbles per glass rod formed from the glass after the reboil propensity test.

Abstract: A glass includes the following components in % by weight: 2-10 wt-% SiO2, 2-10 wt-% B2O3, 40-55 wt-% La2O3, 4-11 wt-% Gd2O3, 6-14 wt-% Nb2O5, 8-18.5 wt-% TiO2, and 5-11 wt-% ZrO2. The glass has a refractive index nd of at least 2.02, a sum of the portions of La2O3, Nb2O5, TiO2 and ZrO2 is at least 76.5% by weight, and a weight ratio of a sum of the portions of La2O3, Nb2O5 and ZrO2 to the portion of TiO2 is at least 3.85:1.

Abstract: A glass has a coefficient of thermal expansion in a temperature range from 20° C. to 300° C. of 4.5 ppm/K or less, and a T4 temperature, defined as the temperature at which the glass has a viscosity of 104 dPa*s, at 1500° C. or more, and having a reboil propensity score of less than 10 measured in a reboil propensity test. The reboil propensity score is determined as a number of bubbles per glass rod formed from the glass after the reboil propensity test.

Abstract: A formulation usable to produce plates and shaped bodies has a base slip, quartz glass particles and multicomponent glass particles that are crystallizable or at least partly crystallized. The base slip contains water as dispersion medium with a content between 30% and 50% by weight and ultrafine SiO2 particles distributed, preferably colloidally therein, with a proportion between 50% and 70% by weight. The proportion of quartz glass particles in the formulation is in the range from 40% to 70% by weight and the proportion the multicomponent glass particles in the formulation is in the range from 5% to 37% by weight. The formulation can be used in a composite material. Firing aids can be made from the composite material.

Abstract: A formulation for a casting compound is provided that includes a base slip with a proportion between 18% and 36% by weight, quartz glass particles with a proportion between 40% and 70% by weight, and particles of an admixture having at least one multicomponent glass with a proportion between 10% and 40% by weight. The base slip contains water as dispersion medium with a content between 30% and 50% by weight and ultrafine Si0 2 particles colloidally distributed therein with a content between 50% and 70% by weight, and wherein the total water content in the formulation is 10% to 20% by weight. A composite material is also provided that has a largely crystalline Si0 2 matrix and particles of a multicomponent glass embedded therein.

Abstract: A method for processing glass is provided. The method includes the steps of providing a glass element and removing glass material from the glass element by etching with an alkaline etching medium in an organic solvent.

Abstract: A method includes producing filamentary damages in a volume of a glass or glass ceramic element that are adjacently aligned along a separation line and that extend obliquely relative to a surface of the glass or glass ceramic element, and separating a portion from the glass or glass ceramic element along the separation line. The step of producing the filamentary damages includes directing laser pulses of an ultrashort pulse laser obliquely on the surface so that the laser pulses have a light propagation direction that extends obliquely relative to the surface and so that the filamentary damages resulting from the laser pulses have the longitudinal extension that extends obliquely relative to the surface, generating a plasma within the volume with the laser pulses, and displacing the laser pulses at points of incidence over the surface along the separation line.

Abstract: A partial beam splitter includes a substrate including a substrate material; and a coating arranged on at least one main surface of the substrate. Along a first direction which is parallel to a normal vector of the main surface, the substrate and all coatings having a total thickness. For a specific light beam having a specific wavelength within a range of 450 nm and 650 nm which is incident on the partial beam splitter along a second direction with an angle of 32° enclosed between a vector pointing in the first direction and a vector pointing in the second direction, the specific light beam after transmitting through the partial beam splitter has a phase having a phase difference of an absolute value of smaller than or equal to 30° compared to the case in which, under otherwise identical conditions, the partial beam splitter is replaced by a similar reference substrate.

Abstract: A join is provided that has an electrically insulating component and two joining partners secured to one another and electrically insulated from one another by the electrically insulating component. The electrically insulating component has a surface that extends between the two joining partners. The surface defines a structure selected from a group consisting of an elevation, a depression, and any combinations thereof. The structure elongates a direct path along the surface. The structure completely surrounds at least one of the two joining partners. The electrically insulating component and/or the structure includes a glass that is at least partially crystallized.

Abstract: An illumination device includes: a light source configured for emitting a primary light; a light conversion unit formed by or including a light conversion element including a front side and a back side, the light conversion element being configured for being illuminated with the primary light and for emitting a secondary light with a wavelength altered relative to the primary light, the light conversion element being configured, on illumination with the primary light, for emitting the secondary light which is characterized by a spectrum which defines a point in a CIE 1931 color space at least one of that: (i) together with a blue point and a red point of an REC709 window defines an area which covers at least 95% of the REC709 window; and (ii) has a radial distance from a green point of the REC709 window that is at most 0.02.

Abstract: A cleaning system for cleaning the inside of a glass element with a fluid includes a nozzle head including a cleaning opening for releasing a part of the fluid and pointing in a first direction and a pressure balancing opening for releasing a part of the fluid and pointing in a second direction. Two half spaces including a first one and a second one are separated by a plane which is perpendicular to a center axis of the nozzle head. A first direction vector of the first direction points in a direction at least one of towards the first half space or away from the second half space. A second direction vector of the second direction points in a direction at least one of towards the second half space or away from the first half space.

Abstract: A glass having a refractive index at a wavelength of about 587.6 nm of 1.95 to 2.05 and a dispersion of 22 to less than 35 includes the following components in % by weight: 4-12 SiO2; 4-11 B2O3; <10 BaO; 30-<52 La2O3; <14 Gd2O3; <5.5 ZrO2; 10-25 TiO2; 3-16 Nb2O5; and ?2.0 ZnO. A sum total of the proportions by weight of SiO2 and B2O3 is at least 10% by weight.