Abstract:
Verfahren zum Herstellen eines Glasartikels, umfassend: Ausbilden einer Glasscheibe; Schützen der Oberflächen der gezogenen Glasscheibe durch Aufbringen eines schützenden Beschichtungsmaterials auf die Scheibe nach dem Ausbilden, wobei das Beschichtungsmaterial ausgewählt ist aus der Gruppe, bestehend aus Acryl- und Methacrylmaterialien, die als eine wässrige Lösung mit einem pH von ≥ 9 auf das Glas aufgebracht werden; Aushärten der Schutzbeschichtung auf dem Glas; Einkerben des Glases und Brechen des Glases entlang der Einkerbungen, um einen Artikelrohling zu bilden; Endbearbeiten der Ränder des Glases, um so einen Glasartikel zu erzeugen; und Entfernen der ausgehärteten Schutzbeschichtung von dem Glasartikel, wobei das Verfahren keine Läppungs-, Schleif- oder Polierschritte zum Entfernen von Ablagerungen oder Kratzern von der Oberfläche des Glasartikels umfasst.
Abstract:
A fiber array includes a substrate made of a soft drillable material and a plurality of holes drilled through the substrate for holding a plurality of glass fibers.
Abstract:
The present invention" is directed to a process for coating at least one geometrically defined surface of an optical article's substrate, without generating optical defects, said surface forming a Fresnel lens (2) comprising: providing a removable plastic carrier (4) having a specific thickness and a specific base curvature, depositing a curable coating composition (3) onto either the at least one surface forming a Fresnel lens or the internal surface of the carrier, moving the carrier and the optical article relatively to each other to bring the deposited curable coating composition into contact with either the al least one surface forming a Fresnel lens or the internal surface of the carrier, applying a specific pressure onto the external surface of the carrier to spread out the curable coating composition so as to cover said at least one surface forming a Fresnel lens, curing the layer of curable coating composition and withdrawing the removalbe carrier
Abstract:
Methods of forming bulk optical elements, such as prisms, incorporating gratings are disclosed. Grating structures are formed by etching a uniform-thickness or generally planar substrate. Direct bonding, particularly chemical bonding, is then employed to bond the etched planar substrate to a bulk optical material without the use of adhesives or high temperature fusion.
Abstract:
Disclosed are photo or electron beam curable polymerizable compositions, and preparation thereof and devices containing such cured material. The composition contains completely or substantially completely hydrogenated hydrocarbon-based material completely free or substantially free of carbon-carbon double and triple bonds containing photo or electron beam curable terminal or pendant groups, low-outgassing photoinitiators, an optional viscosity adjustment component and an optional filler. The composition is visible light, UV or electron beam curable. It cures into a low-modulus, low outgassing polymer material. The composition can be used as an adhesive, sealant or lens potting material. It is ideal for use in lithographic tools and other optical devices involving deep or vacuum ultraviolet radiations, in particular, as lens potting materials for 248 nm, 193 nm and 157 nm lithographic tools, as well as other optical devices involving using high fluence irradiation.
Abstract:
A fiber array includes a substrate made of a soft drillable material and a plurality of holes drilled through the substrate for holding a plurality of glass fibers.