Abstract:
Computer implemented methods to classify quench patterns of heat-treated uncoated or coated mineral glasses and predict the optical visibility thereof. The classification method takes as input a set of optical retardation image-maps of heat-treated coated mineral glasses, a set of optical visibility scores for quench patterns of said heat-treated uncoated or coated mineral glasses; a colour sensitivity factor of the heat-treated uncoated or coated mineral glasses, and provides as output a set of optimized values as parameters for components of an image processing pipeline to be applied to the optical retardation image-maps provided as input. The prediction method relies on an image processing pipeline set up with a set of optimized parameters which can be obtained with the classification. An outstanding benefit is to provide a qualitative and quantitative scoring method for the visibility of quench patterns of heat-treated uncoated or coated mineral glasses, which is based on measurable optical properties thereof.
Abstract:
Die vorliegende Erfindung betrifft eine Vorrichtung zum kontinuierlichen Kühlen von Glasscheiben, umfassend mindestens eine Gaszuführung (2) mit einer Gasauslass-Einheit (1), die geeignet ist, die Oberfläche einer Glasscheibe (G) mit einem Gasstrom zu beaufschlagen, wobei die Gaszuführung (2) mit einem Verdunstungskühler (5) ausgestattet sind.
Abstract:
L'invention concerne un dispositif de refroidissement et de contrôle du galbe de feuilles de verre individuelles ou d'empilements de feuilles de verre, dit le verre, comprenant un dispositif support, comprenant un cadre support comprenant une piste pour supporter la périphérie du verre, un cadre structurel, ledit cadre structurel et ledit cadre support étant reliés ensemble par une pluralité de connecteurs comprenant chacun un moyen de réglage d'un point réglable de la cote de la piste, par rapport au cadre structurel, un gabarit apte à recevoir le verre après son refroidissement sur le cadre support, ledit gabarit étant muni de capteurs fournissant des écarts du verre par rapport au gabarit en différents points de mesure, des points réglables de la piste et des points de mesure du verre ayant des positions coïncidentes.
Abstract:
One object of the present invention is to provide an automotive glazing having superior optical quality. Another object of the present invention is to provide a method for reducing the optical distortion in a glazing comprising an enamel obscuration mask 2.
Abstract:
Methods of shaping a glass sheet are described comprising the steps (i) providing a shaping support for supporting the glass sheet; (ii) heating the glass sheet to a temperature for shaping; (iii) positioning the glass sheet on the shaping support; and (iv) shaping the glass sheet on the shaping support, wherein during step (iv) at least one portion of the glass sheet is deliberately cooled. In preferred embodiments the shaping step (iv) comprises press bending aheat softened glass sheet between a lower shaping support and an upper shaping member, wherein during step (iv) only a portion of the major surface of the glass sheet facing the lower shaping support iscooled by directing one or more jet of air onto said portion.The shaped glass sheet finds particular use in a laminated glazing. Apparatus useful in carrying out the method of shaping is also described.
Abstract:
A process for thermally strengthening a glass article comprising first conveying a glass article, having a temperature above a transition point of the glass of the article, into position between two fluid bearing surfaces then moving the fluid bearing surfaces toward the glass article and cooling the glass article, with at least 20% of said cooling taking place by conduction from the glass article to the fluid bearing surfaces. Apparatuses for performing the process and products resulting are also disclosed.
Abstract:
Die vorliegende Erfindung betrifft eine Düsenleiste (1) für einen Blaskasten zum thermischen Vorspannen von Glasscheiben, die eine Reihe von Düsen (4) aufweist mit jeweils einem Düseneintritt (5) und einer Düsenöffnung (2) zum Beaufschlagen einer Oberfläche einer Glasscheibe (I) mit einem Luftstrom durch die Düsenöffnungen (2), wobei die Düsenöffnungen (2) auf zinnenartigen Erhebungen (3) einer Seitenfläche der Düsenleiste (1) angeordnet sind.
Abstract:
A strengthened photochromic glass sheet or article as well as processes and systems for making the strengthened photochromic glass sheet or article is provided. The process comprises heating the photochromic glass sheet to a desired temperature in a short time period without distortion to the photochromic glass sheet. The process also comprises in cooling the photochromic glass sheet by non-contact thermal conduction for sufficiently long to fix a surface compression and central tension of the sheet. The process results in thermally strengthened photochromic glass sheets.