Abstract: An electronic device structure and an ultra-thin glass sheet used therein. The electronic device structure includes a functional device and an ultra-thin glass above the functional device. The ultra-thin glass has a thickness of no more than 0.4 mm and also has a toughening layer, of which the thickness does not exceed 50% of the thickness of the ultra-thin glass. The ultra-thin glass has a total thickness variation of no more than 20 ?m. The ultra-thin glass used in the electronic device structure according to the present invention provides quality assurance for subsequent potential processes, such as cutting, drilling, coating, screen-printing, laminating, gluing and the like, due to the toughening layer. Moreover, the ultra-thin glass improves functionality of the electronic device structure, in particular of the device, due to its small total thickness variation.

Abstract: The present invention is directed to a kind of machinable glass ceramic which can be chemically toughened. The machinable and chemically toughenable glass ceramic, which comprises, as represented by weight percentage based on the following compositions, 25-75 wt % of SiO2, 6-30 wt % of Al2O3, 0.1-30 wt % of Na2O, 0-15 wt % of K2O, 0-30 wt % of B2O3, 4-35 wt % of MgO, 0-4 wt % of CaO, 1-20 wt % of F, 0-10 wt % of ZrO2, 0.1-10 wt % of P2O5, 0-1 wt % of CeO2 and 0-1 wt % of SnO2, wherein P2O5+Na2O>3 wt %, and Al2O3+Na2O+P2O5>17 wt %. Mica crystalline phase can be formed in the glass ceramic and the glass ceramic can be chemically toughened by one step, two steps or multiple steps with depth of K-ion layer of at least 15 ?m and surface compress stress of at least 300 MPa. The profile on depth of the ion exchange layer follows the complementary error function. Hardness can be improved by at least 20% after chemical toughening. The dimension deviation ratio is less than 0.06% by ion-exchanging.

Abstract: A thin glass article is provided that has a first face, a second face, one or more edges joining the first and second faces, and a thickness between the first and second faces, where the faces and the one or more edges together form an outer surface of the thin glass article. The thin glass article has an ion-exchanged surface layer on its outer surface. The ion-exchanged surface layer is non-uniform, wherein the non-uniform ion-exchanged surface layer has an associated compressive surface stress which varies between a minimum and a maximum value over the outer surface and/or a depth of layer which varies between a minimum and a maximum value over the outer surface. A method for producing a thin glass article and a use of a thin glass article are also provided.

Abstract: A shaped glass article is provided that is ultrathin, has two surfaces and one or more edges joining the two surfaces, and a thickness between the two surfaces. The shaped ultrathin glass article has at least one curved area with a non-vanishing surface curvature with a minimal curvature radius R if no external forces are applied. A method for producing a shaped glass article is also provided that includes providing an ultrathin glass with two surfaces and one or more edges joining the two surfaces, having a thickness between the two surfaces and shaping the ultrathin glass to a shaped ultrathin glass article by forming at least one curved area having a non-vanishing surface curvature with a minimal curvature radius R if no external forces are applied to the shaped ultrathin glass article.

Abstract: An optical arrangement for a camera module with an image sensor is provided. The optical arrangement includes optical components having a transparent cover element; an infrared absorbing cut-off filter; and an optical lens. The optical components are arranged, along an incident optical beam path going through the optical components onto the image sensor, in a sequence through the transparent cover element, then the infrared absorbing cut-off filter, and then the optical lens.

Abstract: A method for producing an ultrathin chemically toughened glass article is provided that includes: providing an ultrathin glass sheet with a first surface and a second surface joined by at least one edge, having a thickness between the first and the second surface, chemically toughening the ultrathin glass sheet to produce an ultrathin toughened glass article. The method includes applying an edge pre-treatment to the at least one edge, preferably all edges, of the ultrathin glass sheet prior to the chemical toughening in order to reduce and/or blunt edge defects and to increase resistance to breakage of the ultrathin glass sheet during the chemical toughening.

Abstract: A method for making a bonded article, wherein a thin glass substrate is bonded on a support substrate in the absence of any interlayer by an electrostatic adhesion process with the assistance of external pressure, the pressure is applied constantly or stepwise during the adhesion process by use of a tool such as a roll or a wheel or other movable device with curved surface. The bonded article has no defects, e.g. bubbles or inclusions, in the bonded interface, which benefits transportation of the thin glass substrate and its post-processing as well. Such defect-free bonded article is also disclosed. Pressure supported electrostatic adhesion, initiated by electrostatic charges adhesion of a two members, e.g. a substrate member and a support member, is enabled to minimize, prevent and exclude defects, distortion between the adhered surfaces.

Abstract: An aluminosilicate glass for touch screens is provided. The glass includes, calculated based on weight percentage: SiO2, 55 to 65%; Na2O, 12 to 17%; Al2O3, 15 to 20%; K2O, 2 to 6%; MgO, 3.9 to 10%; ZrO2, 0 to 5%; ZnO, 0 to 4%; CaO, 0 to 4%; Na2O+K2O+MgO+ZnO+CaO, 15 to 28%; SnO2, 0 to 1%; TiO2+CeO2, ?1%. A chemical strengthening method for glass also provided that includes ion exchange strengthening in a 100% KNO3 salt bath, wherein a preheating temperature ranges from 370° C. to 430° C. and the treatment time is from 0.5 to 16 hours.

Abstract: A thin lithium-aluminosilicate glass is provided. The glass is suitable for three dimensional precision molding and suitable for toughening, wherein after toughening, the glass has a center tension smaller than 50 Mpa, a surface compressive stress of 600-1200 Mpa, and a bending strength of up to 500 MPa. The glass also has a transition point lower than 550° C.

Abstract: An alkali aluminosilicate glass for 3D precision molding and thermal bending is provided. The glass has a working point lower than 1200° C. (104 dPas) and a transition temperature Tg lower than 610° C. The glass has, based on a sum of all the components in percentage by weight, 51-63% of Si02; 5-18% of Al203; 8-16% of Na20; 0-6% of K20; 3.5-10% of MgO; 0-5% of B203; 0-4.5% of Li20; 0-5% of ZnO; 0-8% of CaO; 0.1-2.5% of Zr02; 0.01-<0.2% of Ce02; 0-0.5% of F2; 0.01-0.5% of Sn02; 0-3% of BaO; 0-3% of SrO; 0-0.5% of Yb203; wherein the sum of Si02+Al203 is 63-81%, and the sum of CaO+MgO is 3.5-18%, and the ratio of Na20/(Li20+Na20+K20) is 0.4-1.5.

Abstract: An aluminosilicate glass for touch screens is provided. The glass includes, calculated based on weight percentage: SiO2, 55 to 65%; Na2O, 12 to 17%; Al2O3, 15 to 20%; K2O, 2 to 6%; MgO, 3.9 to 10%; ZrO2, 0 to 5%; ZnO, 0 to 4%; CaO, 0 to 4%; Na2O+K2O+MgO+ZnO+CaO, 15 to 28%; SnO2, 0 to 1%; TiO2+CeO2, ?1%. A chemical strengthening method for glass also provided that includes ion exchange strengthening in a 100% KNO3 salt bath, wherein a preheating temperature ranges from 370° C. to 430° C. and the treatment time is from 0.5 to 16 hours.

Abstract: A thin lithium-aluminosilicate glass is provided. The glass is suitable for three dimensional precision molding and suitable for toughening, wherein after toughening, the glass has a center tension smaller than 50 Mpa, a surface compressive stress of 600-1200 Mpa, and a bending strength of up to 500 MPa. The glass also has a transition point lower than 550° C.

Abstract: A rare earth containing glass nominally based on the ternary P2O5—WO3—Na2O-Ln2O3 compositional space, with WO3>30-65 mole %, Na2O 15-35 mole %, P2O5 5-65 mole %, Ln2O3 (Ln=one or more cations selected from lanthanum or any of the rare earth oxides) up to the limit of solubility; with optional additives, MoO3 being a preferred additive, that can be employed alone or in combination at levels up to 15 mole %.

Abstract: A glass comprising in mole percent based on oxide: SiO2 55-70 PbO 30-38 Na2O >0-4.5 K2O ?0-2.5 and essentially free of TiO2.

Abstract: Athermal optical components comprise cubic crystalline materials including silver chloride and cesium bromide, or comprise composites of at least two layers of different compositions wherein the total optical pathlength, nL, across said layers is essentially independent of temperature.

Abstract: A laser uses a rare-earth doped phosphate laser glass characterized by a particularly high rare-earth content to generate the highest possible output power/energy pulses. The laser glass is composed primarily of P2O5, Al2O3, and alkaline earth and alkali earth oxides, and possesses other properties such as physical and thermal properties that are compatible with melting and manufacturing methods. The laser glass can be used in high power and high energy laser systems where laser action is achieved in rod or slab shaped components as well as in waveguide or thin film structures prepared by structuring technologies such as sputtering, ion exchange, and/or direct writing with a femtosecond laser.

Abstract: The present invention generally relates to an interference filter including a glass substrate, useful in fiber optic systems.

Abstract: The invention relates to a process for the production of a glass melt. For the avoidance of the oxygen reboil the process is equipped with the following process stages or steps: a melting stage a refining stage a homogenizing and conditioning stage; in which before the homogenizing and conditioning stage the melt is heated to a temperature of over 1700° C.; in which polyvalent ions are present in the melt in a proportion of at least 0.5% by wt.

Abstract: The invention relates to a device for melting or refining glass or glass ceramics. According to the invention, a device of this type is provided with the following characteristics: a plurality of tubes which are U-shaped and arrange side by side so that they form a cage like skull channel that is open on top, and a high frequency oscillation circuit which comprises an induction coil. The tubes can be connected to a cooling medium. The induction coil wraps around the channel in such a manner that winding sections extend along the lateral walls of the channel.

Abstract: A rare earth containing glass nominally based on the ternary P2O5 —WO3—Na2O—Ln2O3 compositional space, with WO3>30-65 mole %, Na2O 15-35 mole %, P2O5 5-65 mole %, Ln2O3 (Ln=one or more cations selected from lanthanum or any of the rare earth oxides) up to the limit of solubility; with optional additives, MoO3 being a preferred additive, that can be employed alone or in combination at levels up to 15 mole %.