Schweissen der Enden von optischen Vorformen mittels einer Plasmafackel

GLASS-CERAMIC ARTICLE

1350776 Life rafts OWENS-ILLINOIS Inc 21 April 1971 [22 April 1970] 10389/71 Heading B7A [Also in Divisions F2 F4 B1 and C1] A cellular matrix having a diversity of applications is formed of glass-ceramic tubes 22 fused together to provide a series of smoothwalled longitudinal passages the walls of which have an average coefficient of lineal thermal expansion of about -12 to +12 x 10<SP>-7</SP>/‹C. (0-300‹ C.) and a thermal conductivity at 400‹ C. of less than 0À01 cal/cm/sec/cm<SP>2</SP>/‹C., wherein the inner diameter (defined in the specification) of said passages is at least 3 times the wall thickness through portions of said walls common to adjacent fused tubes. Preferably the matrix has an open frontal crosssectional area of at least 60%. The matrix passages may be open or closed at one or both ends. Typical tube dimensions are, inner diameter 0À1 inch, and wall thickness 0À03 to 0À002 inch. The use of larger tubes up to 3 inches diameter is mentioned. When fused together (after suitably pressurizing the tube bores), the tubes when all parallel, form open-ended passages of generally hexagonal cross-section as shown in Fig. 6. Alternatively in another arrangement where alternate layers of tubes are at right angles to each other (Fig. 14) the tubes when fused together, form open-ended passageways of rectangular or square cross-section. With the tubes closed at both ends, the matrix structure may be utilized as buoyancy material in a liferaft.

METHOD AND APPARATUS FOR FABRICATING OPTICAL FIBRES

Lightweight reflector blanks for astronomical purposes

A light-weight mirror for astronomical purposes is disclosed. The mirror consists of a mirror plate, a back plate and a supporting framework disposed between them and consisting of a plurality of rows of tubes. The rows of tubes are staggered one from the other. Each tube in a row has a line or strip of contact with two adjacently disposed tubes of the next row. The tubes are welded together along the contact line or strip. The thickness of the tube wall is reduced in the area of the contact line or strip.

Improved process for taking glass articles to pieces and re-assembling the pieces together by fusion

... 156,573. Kr³ger, E. A. Jan. 2, 1920, [Convention date]. Welding. - Relates to the process of dividing glass articles, such as electric lamp bulbs, into two parts and subsequently re-uniting the parts by fusion. According to the invention, the line of division follows a direction which ensures that the parts are afterwards brought together in their original relative position, so avoiding the fusion together of thick and thin edges.

Improvements in or relating to a process for the manufacture of discs or sheets of silica glass

In the manufacture of discs or sheets of silica glass, particularly of large dimensions, a plurality of transparent silica rods or tubes are formed into a cluster and the ends melted to form two sheets of transparent fused silica which are connected by a cluster of partly fused rods or tubes. For astronomical mirrors of a desired radius of curvature, the cluster is arranged with the rod ends formed to the desired shape. For very large sheets or discs of the order of one to several yards in diameter, a number of smaller units, for example square sectioned or hexagonal sectioned prismatic units, may be welded together at the joins between the units. To hold the rods together during welding of a face, they are placed on a refractory support such as graphite or silica sand and enclosed in a ring of refractory material. The support may be rotated and the face of the rods melted by causing the heat source to describe a spiral outwards from the centre. The face is then annealed and the opposite ...

PROCEDURE FOR THE PRODUCTION OF A GLASS BODY

PROCEDURE FOR ADDING AGAIN FROM EACH OTHER SOLVABLE ONE GLASS BODIES

PROCEDURE FOR the ZUSAMMENSCHWEIßEN of a FIRST GATHERING MOLD AND a SILICIC ACID BAR

Procedure for the production of rings or other hollow bodies from melted quartz, closed in itself.

OPTICAL FIBRE PREFORM MANUFACTURE

GRADED REFRACTIVE INDEX FIBERS AND RODS

A METHOD FOR PRODUCING A GLASS BODY

... 7 The present invention relates to a method for producing a glass body with at least one inner tube which is closed off on one side and one outer tube which is closed off at least on one side, with the inner tube being connected not coaxially with the floor of the outer tube and the inner tube comprising an opening, with the inner tube being fixed in the outer tube in such a way that the outer tube comprises a projecting portion, a floor is formed by the projecting portion on the outer tube, an opening is formed by the removal of the glass on the inner tube, and the outer tube is evacuated at the end and molten off.

APPARATUS FOR WELDING GLASS RODS,PARTICULARLY TUBULAR GLASS RODS

LOW-PRESSURE ARC DISCHARGE LAMP HAVING PARALLEL DISCHARGE TUBES WITH AN ARC-CONTAINING INTERCONNECTING CHANNEL; AND METHOD OF MANUFACTURING SAME

METHOD FOR PROCESSING A PREFORM FOR OPTICAL FIBER, BURNER SYSTEM USEFUL FOR CARRYING OUT THE METHOD AND APPARATUS COMPRISING THE BURNER SYSTEM

A method for processing a preform supported with a stationary chuck and a movable chuck of a glass-working lathe comprises providing a burner of a type which is able to create flame-controlled conditions by controlling flow rates of a flammable gas and a supporting gas wherein the supporting gas is discharged from at least one group of discharge pipes co-axially classified into plural groups that are, respectively, controllable with respect to a gas flow rate. The preform is processed under the flame-controlled conditions. A burner system and a preform processing apparatus comprising the burner system, both suited for realizing the method, are also described.

OPTICAL WAVEGUIDE GLASS FIBER FLAME PROCESSING

PROCESS FOR FABRICATING SILICA ARTICLE INVOLVING JOINING OF DISCRETE BODIES

An improved process for fabricating a refractory dielectric article, in particular silica optical fiber, is provided. The fabrication process involves joining of two elongated bodies - typically silica preforms - end-to-end by use of an isothermal plasma torch technique. A long preform made in this manner allows drawing of optical fiber with less down-time and waste than current processes. The plasma torch technique also produces low perturbations within the resultant preform, thereby increasing the amount of usable fiber.

Verfahren zur Herstellung von Glasrohren mit eingebetteter Bewehrung.

Verfahren zum Anbringen von Einsätzen, insbesondere von Filterplatten, in Glas- oder Quarzgefässen.

Elektrische Lampe.

Procédé de fabrication d'une enveloppe munie d'une tubulure à partir d'un tube de verre et dispositif pour la mise en oeuvre de ce procédé.

Machine à souder, par rapprochement, les extrémités adjacentes de deux portions de tube en verre

Procédé pour effectuer la soudure électrique d'objets en verre, et dispositif pour la mise en oeuvre de ce procédé.

Procédé et installation pour le chauffage localisé d'objets en verre.

Procédé de préparation de nouveaux dérivés de la phénothiazine

Procédé de préparation de nouveaux dérivés de la phénothiazine

Procédé de préparation de nouveaux dérivés de la phénothiazine

Procédé de fabrication de plaques en verre de silice de grandes dimensions

Verfahren zur Herstellung einer Leichtplatte wie z. B. eines Teleskopspiegelrohlings, und nach dem Verfahren hergestellte Leichtplatte

Verfahren zur Herstellung von Glasrohrleitungssystemen durch Verschweissen von Glasrohrstücken

Fester Körper aus geschmolzenem Siliziumoxyd

Ebauche de pièce de verre, notamment de miroir de télescope et procédé de fabrication de cette ébauche

Procédé de fabrication d'objets en verre

Quarzglasrohr mit Überzug

Dense, optionally uniformly porous thin metal foils, strips or tubes - by liquid drawing

Metal is totally enclosed by a glass, quartz or borax sleeve. The formed compound body is heated until it flows plastically, and then reduced by drawing and/or hot rolling. The produced foil, strip ro tube is cooled at such a rate that desired chemical or physical properties are produced. The sleeve may subsequently be removed, if desired. The method has various possible modifications, according to the desired product. Products obtained may be: metallic capillary filters, fuel cells electrodes, razor blades, metal mono-crystalline foils or metal-quartz foils, catalysts, artificial denture components, active and passive electronic components, special purpose magnetic materials, and many others.

Quarzglaskörper für die Halbleitertechnik

ELEMENT DE SILICE PRESENTANT UNE DEFORMATION REDUITE A TEMPERATURE ELEVEE, ET SON PROCEDE D'OBTENTION.

SEMI-FINISHED MATERIAL FOR THE PRODUCTION FROM OPTICAL FIBERS AND PROCEDURES TO THE PRODUCTION OF THE SEMI-FINISHED MATERIAL.

PROCEDURE FOR THE PRODUCTION OF AN OPTICAL FIBER FROM A CONTINUOUS OPTICAL FIBER BLANK.

The invention relates to a piece of clothing for timepiece or jewellery.

La présente invention se rapporte à un procédé de fabrication d'une pièce d'habillage (1) en horlogerie ou en bijouterie réalisée en verre de Murano, ledit procédé comprenant les étapes suivantes : - Mise à disposition d'une matière formée de tiges de verre aussi appelées cannes de verre, disposées côte à côte, - Traitement thermique en plusieurs cycles pour consolider la matière et former une ébauche, - Usinage de l'ébauche pour réaliser la pièce d'habillage (1). Selon l'invention, le traitement thermique comporte un premier cycle (a) consistant à chauffer la matière depuis une température inférieure ou égale à 100°C jusqu'à une température comprise entre 450 et 650°C à une vitesse de chauffage comprise entre 4 et 12°C/min afin d'éviter la formation de bulles d'air lors de la fabrication de l'ébauche. Elle se rapporte également à la pièce d'habillage (1) en horlogerie ou bijouterie présentant une structure avec peu ou pas de bulles d'air.

Elongating method and apparatus for glass base material

A method of elongating a glass base material to obtain a glass rod having a smaller diameter, using a glass base material elongating apparatus including a feeder at least for the glass base material, a heating furnace, and an elongating mechanism of the glass base material below the heating furnace, is such that a horizontal plane position measuring unit of the glass base material is provided inside or near the heating furnace, the feeder has a glass base material horizontal plane position adjusting unit, and the elongating mechanism has three or more sets of elongating rollers capable of switching between grasping and releasing for keeping the position of the glass rod in the horizontal plane to be constant, and the glass base material is elongated with the position thereof in the horizontal plane kept as targeted by controlling the glass base material horizontal plane position adjusting unit.

ELEMENT OF GLASS HAS SIDE EMISSION

La présente invention concerne des éléments de verre à émission latérale comprenant des éléments de guidage de lumière (1) reliés entre eux de manière inséparable au niveau de leurs circonférences, et au moins un élément diffusant (3). L'élément diffusant est relié de manière inséparable à la circonférence d'au moins un élément (1). Les éléments (1) sont constitués d'un verre d'indice de réfraction n1, les éléments de guidage de lumière individuels n'étant pas entourés d'une gaine. La lumière guidée peut passer à travers une limite de phase séparant les éléments (1) et ainsi atteindre l'élément diffusant (3).

WELDING END TO END OF FIBEROPTIC PREFORMS USING A TORCH APLASMA

Improvements with the work of glass and matters similar and, in particular, to the manufacture of the flashlights

Process and device for the assembly of articles of glassmaking, with a view in particular to it manufacture of multiple bottles

METHOD AND APPARATUS FOR PRODUCING A GLASS VIAL

Astronomical mirror - of light weight using hollow glass tubes as structural support

MANUFACTORING PROCESS OF PREFORMS FOR FIBEROPTICS

New derivatives of the phénothiazine with chain cyanalcoyle piperazine and their preparation

PROCEEDED FOR the REALIZATION Of a GAS-DISCHARGE LAMP IN the MERCURY VAPOR HAS LOW PRESSURE AND LAMP THUS OBTAINED

METHOD FOR PRODUCING OPTICAL FIBER PREFORM

METHOD FOR THE PRODUCTION OF AN ELEMENT WITH A HERMETICALLY-SEALED AIR-FREE CHAMBER

DEVICE FOR BUTT-WELDING OPTICAL FIBER PREFORMS TO EACH OTHER

PROBLEM TO BE SOLVED: To provide a device for butt-welding two optical fiber preforms to each other by uniformly heating the preforms. SOLUTION: In this device, two preforms 7 and 9 fitted onto a glass lathe 1 so that the preforms 7 and 9 can be rotated with their common rotation axis A as the center of rotation of each of them and at least one of the preforms 7 and 9 can translationally be moved in the direction parallel to the rotation axis A, are received. Also, two nozzles 19 and 23 supported by two oxyhydrogen blow torches 17 and 21 respectively are placed within a plane perpendicular to the rotation axis A, to form two flames 191 and 231 respectively between two end surfaces 71 and 91 opposite to each other of the preforms 7 and 9. Further, at least one (e.g. 23) of the two nozzles 19 and 23 is fitted to the corresponding one of the oxyhydrogen blow torches 17 and 21 so as to translationally move in the direction perpendicular to the rotation axis A, to concentrate the flames 191 ...

QUARTZ GLASS TUBE AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a method for manufacturing a quartz glass tube which can be suitably used for manufacturing a quartz glass tube capable of being used for a long time under a heated environment and of being easily manufactured at a low cost. SOLUTION: The method for manufacturing the quartz glass tube comprises a process of preparing a synthetic raw material quartz glass tube which becomes the main body of the quartz glass tube and has a closed end, a process of preparing an electrically fused natural raw material glass tube for an outer layer having openings at both ends, a process of externally fitting one end of the electrically fused natural raw material glass tube for an outer layer to the closed end of the synthetic raw material quartz glass tube, a process of forming an airtight space at the electrically fused natural raw material glass tube for an outer layer by airtightly heating and welding the tip of the electrically fused natural raw material glass tube for an ...

Verfahren zur Herstellung dichter oder auch gleichmaessig poroeser Folien und Baender,Rohre und Profilteile aus Metallen,Legierungen oder metallischen bzw. Metall-Glas-Uerbundwerkstoffen durch Fluessigziehen und/oder -walzen

VERFAHREN ZUM VERSCHMELZEN EINES ROHRES AUS QUARZGLAS FÜR DIE VERWENDUNG ALS VORFORM FÜR OPTISCHE FASERN

Mfr. of electrical gas-discharge lamps

A low pressure mercury vapour discharge tube is produced with a U-shaped form consisting of two parallel tubular sections (100, 102) and a curved section (104) of reduced cross-section. The U tube is produced from two parts that begin as plain constant cross-section elements. The ends are softened by applying a gas flame and are then reduced in size and formed into a curve. The ends are then butt joined (106). The tube is fitted with electrodes and gas filled.

Verfahren zum Verschließen eines Hohlkörpers aus Glas, Hohlkörper aus Glas sowie Bausatz

Verfahren zum Verschließen eines zuvor befüllten Hohlkörpers aus Glas, welcher einen im wesentlichen zylindrischen Einfüllstutzen (3) aufweist, wobei der Einfüllstutzen nach dem Befüllen des Hohlkörpers durch einen Schmelzprozeß verschlossen wird, dadurch gekennzeichnet, dass in den Einfüllstutzen (3) ein Verschlußstopfen aus Glas (4) eingesetzt wird, der zumindest einen Teil des über der Füllung des Hohlkörpers liegenden Luftvolumens verdrängt, und der dann an seinem Umfang mit dem umlaufenden freien Ende des zylindrischen Einfüllstutzens (3) verschmolzen wird.

Fester Koerper aus geschmolzener Kieselsaeure

Vorrichtung und Verfahren zur Verarbeitung von Glaskomponenten

Die Erfindung betrifft eine Vorrichtung zur Verarbeitung von Glaskomponenten mit einer Haltevorrichtung (50) zum Halten zumindest einer zu verarbeitenden Glaskomponente (10, 20), einer Strahlungsleitvorrichtung (30) zum Leiten von Strahlungsenergie in zumindest einen Bereich der zu verarbeitenden Glaskomponente (10, 20), einer Lagervorrichtung, in der die Strahlungsleitvorrichtung (30) um eine Achse drehbar gelagert ist, und einer Antriebseinrichtung zum Rotieren der Strahlungsleitvorrichtung (30) um eine Achse mit einer Drehzahl (n3). Die Erfindung betrifft auch ein Verfahren zur Verarbeitung von Glaskomponenten mit den folgenden Schritten: Rotieren zumindest einer Glaskomponente (10, 20) mit einer Drehzahl (n1) und Leiten von Strahlungsenergie in zumindest einen Bereich der Glaskomponente (10, 20) mit einer Strahlungsleitvorrichtung (30), wobei die Strahlungsenergie entlang der Rotationsachse der rotierenden Glaskomponente (10, 20) in einen von der Glaskomponente (10, 20) eingeschlossenen ...

VERFAHREN ZUM HERSTELLEN VON OPTISCHEN FASERN

Probenflasche und Verfahren zu deren Herstellung

Verfahren zur Herstellung einer Probenflasche (1), das Verfahren umfassend:- Bereitstellen einer Glasflasche (2), aufweisend einen zylindrischen Körper (3), der einen Hohlraum umschließt, einen Verschluss (5) an einem Ende des zylindrischen Körpers (3) und einen Boden (7) an einem zweiten Ende des zylindrischen Körpers (3),- Trennen der Glasflasche (2) im Bereich des zylindrischen Körpers (3) quer zu einer Längsachse (L) der Glasflasche (2) zum Erhalt eines Verschlussteils (4) mit dem Verschluss (5) und eines Bodenteils (6) mit dem Boden (7),- Positionieren des Bodenteils (6) in eine Position, in der der Boden (7) zum Verschlussteil (4) weist, so dass eine Außenseite des ursprünglichen Bodens (7) die Innenseite des neuen Bodens (7) der Probenflasche bildet, und- Verschmelzen des Bodenteils (6) mit dem Verschlussteil (4) in dieser Position.

Verfahren und Vorrichtung zum Wiederzusammenschmelzen der Teile zerlegter Glasgefaesse

Improvements in or relating to machines for applying glass tubes to glass bulbs

... 208,473. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. March 17, 1923, [Convention date]. Welding.-A machine for attaching exhaust tubes to electric lamp bulbs &c. comprises an intermittently-rotatable table 6 carrying a number of bulb holders 15 and an equal number of tube holders 18, 19, the several operations being performed simultaneously around the table. The bulb holders are pivotally supported at 30 on levers 31 normally held in the raised position by springs 36, but adapted to be lowered by their rollers 33 co-operating with a cam-track 34. When the levers are lowered, pins 26 attached to the holders 15 run in curved slots 27 and cause them to take the position shown in broken lines in Fig. 2 to enable a finished bulb to be withdrawn and a fresh bulb inserted, and at the same time the glass tubes are placed in the grippers 18, 19. When the levers 31 are raised, the springs 86 cause the bulbs 21 to be pressed against abutments 16 to maintain an airtight contact between the ...

Method for forming recessed glass articles with finished surfaces

To form recessed glass articles with finished, particularly polished, surfaces, a layer of relatively low fusing temperature glass is placed between two cylinders of relatively high fusing temperature glass aligned to give an end surface, the layer and cylinders heated to rigidly fix them together, the end surface then polished or otherwise finished, the whole then being reheated to a temperature between the fusing temperatures, and the layer therefore molten, and the cylinders displaced relative to one another, the cylinders then being cooled in their displaced position. As disclosed in the manufacture of recessed discs for image intensifiers, glass cylinders 22, 26, 28 and 38 are disposed within a steel form 20, coated with a separating agent, with layers 24 and 30 of solder glass between the inner and outer pairs of cylinders and a plurality of wires 32 are spaced circumferentially between cylinders 26, 28. The innermost cylinder 38 has one end 40 sealed and a runber stopper 42 with ...

Method for fabricating an optical fibre preform

Method for manufacturing a fluorescent lamp

In a method for manufacturing a fluorescent lamp, four dual tubes (21a, 21 b, 22a and 22b) that are previously manufactured are held at a distance in such a manner that the dual tubes can move horizontally. Four portions for connection are simultaneously heated, and two of the dual tubes (21a and 21 b) are simultaneously moved horizontally (31) to form bridges (3b) to provide two tube assemblies (23a and 23b). Furthermore, annealing after bridge connection and the connection of tube assemblies (23a and 23b) with a further bridge are performed simultaneously. Thus, a compact fluorescent lamp comprising eight glass tubes that are connected with bridges to form continuous discharge paths can be obtained. According to the manufacturing method, bridge connection can be performed in a small space and with high productivity, and a fluorescent lamp having a good quality with minor variations in the quality of the bridge portions can be provided. Alternatively, the bridge between the two dual tubes ...

METHOD FOR RESHAPING GLASS TUBING

... 1338881 Re-shaping glass tubes BENDIX CORP 10 Dec 1971 [10 Dec 1970] 57575/71 Heading C1 The end of a glass tube 10 is reshaped by sliding a second glass tube 12 over the end of tube 10, heating the tubes to their softening point to seal them together, and advancing the sealed assembly over a suitably shaped mandrel 18. The mandrel 18 is located in a heating chamber 16 maintained at a temperature sufficient to soften the tubes. The mandrel is preferably constructed of carbon. A rectangular shape may be formed from a circular tube by flaring the end thereof using the above method which end may then be advanced over a second angularly shaped mandrel (Fig. 2, not shown).

METHOD OF PRODUCING A LOW-PRESSURE MERCURY VAPOUR DISCHARGE LAMP

Improvements in the manufacture of thermometers

... 159,746. Morton, F. Jan. 29, 1920. Thermometers.-The whole cf the thermometer column with the exception of the bulb is enclosed in a glass or like tube which is sealed to the column, and the space between the column and the tube is evacuated.

PROCESS AND APPARATUS FOR HOT WORKING GLASS

A method of manufacturing a camera tube faceplate

It is desirable to have a camera tube in which the signal plate has a low capacity. This may be achieved by taking a conductor from the signal plate through the glass faceplate. Previous methods of manufacturing a faceplate in which a conductor is embedded have proved unsatisfactory because of difficulty in carrying them out, and distortion and incomplete fusion of glass. A graphite mould having a base and walls contains and supports two glass blocks and a conductor and permits a degree of fluidity of the glass to be obtained which gives good fusion.

MANUFACTURING PROCESS FOR MIKROKANALUND NANO-CHANNEL ARTICLE

Rod lens and method of making same

Stablinse und Verfahren zu ihrer Herstellung. Einschmelzglas (1) und Halterglas (2) oder ein metallischer Halter (3) werden erhitzt, so dass nur das Einschmelzglas (1) schmilzt und sich eine sphärische Kalotte bildet, die ein Linsenelement (10) in Verbindung mit einem Lichtleitelement (20) darstellt. Mehrere Stablinsen können eine Matrixanordnung bilden.

LOW-PRESSURE ARC DISCHARGE LAMP HAVING PARALLEL DISCHARGE TUBES WITH AN ARC-CONTAINING INTERCONNECTING CHANNEL; AND METHOD OF MANUFACTURING SAME

A method of manufacturing a low-pressure arc discharge lamp formed by interconnecting two or more parallel glass discharge tubes, each tube being sealed at one end. A hermetically sealed arc-containing channel between the two adjacent tubes is formed by heating opposing sections of the two tubes to soften a first and second site on each of the respective tubes. Then, one of the tubes is pressurized until a glass bubble forms from the softened site: the bubble is blown toward and onto the other tube about the softened site thereof. The pressure in the first tube is then released, and pressure is applied in the second tube to form a second glass bubble which fuses with the first glass bubble and bursts into the first tube thereby forming the sealed arc-containing channel between the two tubes. The technique may be applied to multiple tube assembled by alternating the end of the tube at which the joint is formed. Once the tubes are joined, they may be processed by current manufacturing techniques ...

OPTICAL WAVEGUIDE GLASS FIBER FLAME PROCESSING

OPTICAL WAVEGUIDE GLASS FIBER FLAME PROCESSING This invention is a method for making at least one silica-based optical waveguide glass fiber having a dopant-induced core-cladding waveguiding structure. In the interest of reducing the effect on tensile strength of flame processing of a silica-based optical fiber waveguide, such processing is by a method in which a significant flow of oxygen surrounds a flame produced by combustion of hydrogen, deuterium, ammonia, or deuterated ammonia. Flame processing may be for purposes such as, e.g., fiber drawing, fiber fusing for the sake of lateral coupling, refractive index modification by the diffusion of dopants, and fiber splicing in the manufacture of long lengths of fiber. Even though there is no use of chlorine, at least 80 percent of spliced fibers have a tensile strength greater than or equal to 500 kpsi (3.45 GPa) as is desirable in optical fiber cable manufacture.

METHOD FOR FABRICATION OF PRECISION MINIATURE GLASS CIRCUITS

Nonfull Aperture Luneberg-Type Lens with a Graded Index Core and a Homogenous Cladding, Method for Forming Thereof, and High Numerical Aperture Laser Diode Assembly

Disclosed is a nonfull aperture Luneburg-type lens for correction of an adjacent light source. The lens includes a core having a circular cross-section and a graded refractive index, and a cladding enclosing the core. The cladding has a circular cross-section and a homogenous refractive index. Also disclosed is a method for forming the nonfull aperture Luneburg-type lens with a graded index core and a homogenous cladding, and a high numerical aperture laser diode assembly including the nonfull aperture Luneburg-type lens.

OPTICAL TRANSMISSION FIBRE

PROCEDE DE FABRICATION DE PREFORMES POUR FIBRES OPTIQUES

Procédé de fabrication de préformes pour fibres optiques et fabrication des fibres optiques correspondantes. Le procédé de fabrication d'une préforme continue pour fibre optique produite à partir de tiges ou de tubes en verre ou en silice comprend la mise bout à bout des tubes ou tiges de façon linéaire, le placement de tubes manchons en verre ou en silice sur les joints entre les tiges ou les tubes et le scellement par fusion des joints entre tiges ou tubes. Application à la fabrication des fibres optiques.

METHOD AND PREFORM FOR RESHAPING GLASS TUBING

Manufactoring process of objects out of glass

electrode deionized for the electric work of glass

Melting mode quartz body of steel pipe manufacturing quartz

METHOD FOR FORMING GLASS?CERAMIC HONEYCOMB STRUCTURES

METHOD FOR MAKING HEAT EXCHANGE MATRIX BY CRYSTALLATION

LINEAR NETWORK OF MULTIPLYING MICROCHANNELS Of ELECTRONS

Method and facility for producing a glass vial

METHOD OF MANUFACTURING A DISCHARGE LAMP AND DISCHARGE CAMP MANUFACTURED ACCORDING TO THIS METHOD

The invention concerns a discharge lamp (98) and a method of manufacturing the lamp. In order to join two glass discharge tubes (100, 102) by means of a transverse joint (104, 106) so that they lie adjacent to each other, but without causing stresses in the glass, the invention proposes that each discharge tube (100, 102) is softened near an open end (110, 112), the softened ends are joined to form a butt joint (110) and, once joined in this way, the discharge tubes are bent round into a position in which they are adjacnet to each other.

Method of making a cold cathode gas laser discharge tube

Use of press-molded flanged glass envelope members each including a central hollow cylindrical portion enables fabrication of high output cold cathode gas laser tubes of reduced axial length with materially reduced cost of production. The cylindrical portion of one of the envelope members surrounds one end region of the capillary tube thereby to prevent discharge concentration on the adjacent end region of the cylindrical cold cathode while that of the other envelope member serves to support the capillary tube at about the middle of its axial length, eliminating the need for a "flaring operation" requiring highly skilled labor.

Method of producing a low-pressure mercury vapor discharge lamp

Method of producing a low-pressure mercury vapor discharge lamp consisting of two or more parallel discharge tubes which are interconnected by means of a cross-connection. In this method two adjacent discharge tubes are interconnected after the inside of the wall of the tubes has been coated with a luminescent layer and after they have been sealed at one end. The connection between the two tubes is then effected by making an aperture with an outwardly extending collar in the wall of each of the tubes, placing the apertures opposite to one another and fusing the collars together.

Method for producing a glass body

The present invention relates to a method for producing a glass body with at least one inner tube which is closed off on one side and one outer tube which is closed off at least on one side, with the inner tube being connected not coaxially with the floor of the outer tube and the inner tube comprising an opening, with the inner tube being fixed in the outer tube in such a way that the outer tube comprises a projecting portion, a floor is formed by the projecting portion on the outer tube, an opening is formed by the removal of the glass on the inner tube, and the outer tube is evacuated at the end and molten off.

Method of making a glass diffusion cell

The method of making a glass diffusion cell which utilizes taking of an inner glass tube and forming an enlarged annular flange at one end of this tube and in the sidewall of this tube forming a refilling port and a sampling port. This inner glass tube is then located within an outer glass tube with the end of this outer glass tube that is located directly adjacent the enlarged annular flange being sealed to the inner glass tube. The sidewall of the outer glass tube is then spot heated which permits a refilling tube to be connected to the refilling port and a sampling tube to be connected to the sampling port establishing a fluid interconnection with the interior of the inner glass tube. Inlet and outlet tubes are connected to the sidewall of the outer glass tube which fluidly connect with the annular chamber located between the inner glass tube and the outer glass tube. The bottom wall of both the inner glass tube and the outer glass tube are then sealed.

METHOD OF FABRICATING AN ARRAY OF CHANNEL MULTIPLIERS

Elongating method and apparatus for glass base material

A method of elongating a glass base material to obtain a glass rod having a smaller diameter, using a glass base material elongating apparatus including a feeder at least for the glass base material, a heating furnace, and an elongating mechanism of the glass base material below the heating furnace, is such that a horizontal plane position measuring unit of the glass base material is provided inside or near the heating furnace, the feeder has a glass base material horizontal plane position adjusting unit, and the elongating mechanism has three or more sets of elongating rollers capable of switching between grasping and releasing for keeping the position of the glass rod in the horizontal plane to be constant, and the glass base material is elongated with the position thereof in the horizontal plane kept as targeted by controlling the glass base material horizontal plane position adjusting unit.

METHOD AND DEVICE FOR PRODUCING VACUUM TUBES FOR SOLAR THERMAL INSTALLATIONS

The invention relates to a method and to a device for producing vacuum tubes for solar thermal installations, wherein the vacuum tube comprises an outer tube and an inner tube arranged within the outer tube, and the gap between the outer tube and the inner tube is sealed with respect to the exterior and evacuated. An outer tube () is coated in a first vacuum unit () and an inner tube () is coated in a second vacuum unit (). The coated outer tube () and the coated inner tube () are assembled in a third vacuum unit () and fused together at the ends. The third vacuum unit is connected to the first vacuum unit () and to the second vacuum unit (), such that the outer tube () and the inner tube () are not exposed to the atmosphere throughout the entire production of the vacuum tubes. 1. Method for producing vacuum tubes for solar thermal installations , whereby the vacuum tube comprises an outer tube and an inner tube arranged within the outer tube and the gap between the outer tube and the inner tube is sealed with respect to the exterior and evacuated , comprising the following method steps:{'b': 4', '1, 'insertion of an outer tube () into a first vacuum unit (), in which a vacuum prevails,'}{'b': 4', '1', '5', '5, 'application of at least one coating on the outer side and/or the inner side of the outer tube () in the first vacuum unit (), insertion of an inner tube () into a second vacuum unit (), in which a vacuum prevails,'}{'b': 5', '2', '4', '3', '1', '2', '4', '1', '3, 'application of at least one coating on the outer side and/or the inner side of the inner tube () in the second vacuum unit (), insertion of the coated outer tube () into a third vacuum unit () linked to the first and the second vacuum unit (, ), whereby the coated outer tube () is conveyed directly from the first vacuum unit () into the third vacuum unit (),'}{'b': 5', '3', '5', '2', '3', '5', '4', '3, 'insertion of the coated inner tube () into the third vacuum unit (), whereby the coated inner ...

Method for producing an integral bond between components of quartz glass and heating burner suited therefor

Known heating burners for producing a welded joint between components of quartz glass include a burner head in which at least one burner nozzle is formed, a burner-head cooling system for the temperature control of the burner head and a supply line connected to the burner nozzle for a fuel gas. Starting from this, to modify a heating burner in such a way that impurities in the weld seam between quartz-glass components to be connected are largely avoided, it is suggested that the burner head should include a base body of silver or of a silver-based alloy.

MAGNETO-OPTIC ELEMENT AND METHOD FOR PRODUCING SAME

Provided is a magneto-optic element that enables easy size reduction of an optical isolator. A magneto-optic element is formed of two or more magnetic members joined together. 1. A magneto-optic element formed of two or more magnetic members joined together.2. The magneto-optic element according to claim 1 , wherein the magnetic members are glass members.3. The magneto-optic element according to claim 2 , wherein the glass members are fusion-joined to each other.4. The magneto-optic element according to claim 2 , wherein the glass members contain claim 2 , in % by mole claim 2 , more than 48% TbO(exclusive of 48%) in a composition thereof.5. The magneto-optic element according to claim 1 , being used as a Faraday rotator.6. A method for producing a magneto-optic element claim 1 , the method comprising fusion joining two or more glass members together by application of heat.7. The method for producing a magneto-optic element according to claim 6 , wherein a temperature for fusion joining the two or more glass members is from (glass transition point minus 20° C.) to (glass transition point plus 100° C.). The present invention relates to a magneto-optic element suitable for a magnetic device, such as an optical isolator, an optical circulator or a magnetic sensor, and a method for producing the same.A glass material containing a paramagnetic compound, such as TbO, is known to exhibit the Faraday effect which is one of magneto-optic effects. The Faraday effect is an effect of rotating the polarization plane of linearly polarized light passing through a material placed in a magnetic field. This effect is utilized in optical isolators, magnetic field sensors, and so on.The optical rotation θ (angle of rotation of the polarization plane) due to the Faraday effect is expressed by the formula below where the intensity of a magnetic field is represented by H and the length of an element through which polarized light passes is represented by L. In the formula, V represents a ...

METHOD FOR THE AUTOMATED PRODUCTION OF A GLASS BODY COMPRISING A DIAPHRAGM

One aspect of the present disclosure relates to a method for the automated production of a glass body comprising a diaphragm for a potentiometric sensor. The method includes providing a glass assembly, which includes an outer tube and at least one inner tube running inside the outer tube, wherein the inner tube and the outer tube are arranged coaxially and wherein one end of the inner tube is substance-to-substance bonded to a tube wall of the outer tube; forming at least one aperture through the tube wall of the outer tube; introducing a porous diaphragm body into the aperture, the diaphragm body including a coating of glass in at least one section; and creating a substance-to-substance bond between the tube wall of the outer tube and at least the section of the diaphragm body comprising the coating of glass. 1. A method for the automated production of a glass body of a sensor , the method comprising:providing a glass assembly that includes an outer tube and at least one inner tube disposed within the outer tube, wherein the inner tube and the outer tube are arranged coaxially and wherein one end of the inner tube is substance-to-substance bonded to a tube wall of the outer tube;forming an aperture through the tube wall of the outer tube;introducing a porous diaphragm body into the aperture, at least one portion of the diaphragm body including a coating of glass; andcreating a substance-to-substance bond between the tube wall of the outer tube and at least the portion of the diaphragm body with the coating of glass.2. The method of claim 1 , wherein the step of creating the substance-to-substance bond between the tube wall of the outer tube and the diaphragm body includes fusing the tube wall with at least the portion of the diaphragm body with the coating of glass by means of a heat source.3. The method of claim 1 , wherein the glass assembly is arranged in a workpiece holder of a spindle of a lathe that can be rotated about an axis of rotation claim 1 , such that ...

HIGH TEMPERATURE SEALANT AND METHODS THEREOF

A method of making a stoichiometric monazite (LaPO) composition or a mixture of LaPOand LaPOcomposition, as defined herein. Also disclosed is a method of joining or sealing materials with the compositions, as defined herein. 1. A method of making a stoichiometric monazite (LaPO) composition , comprising:{'sub': 2', '3', '2', '5', 'melt, 'preparing La-phosphate glass frit particles comprising: melting a mixture of LaO:POin a mole ratio of 30:70 at a suitable melting temperature (T); and then pouring, rolling, and milling the resulting melt mixture to frit particles of a suitable particle size; and'}{'sub': 1', '4', 'melt', '1, 'heating the resulting frit particles in admixture with a lanthanum source to a reactive-ceramming temperature (T) for a sufficient time to form a stoichiometric LaPO, wherein Tis greater than T.'}2. The method of wherein a suitable melting temperature of the glass frit (T) is of from 1400 to 1700° C. claim 1 , a reactive-ceramming temperature (T) is of from 1200 to 1500° C. claim 1 , and for a sufficient time.3. The method of wherein a frit suitable particle size is a mean particle size of 10 to 15 microns.4. A method of making a mixture of LaPOand LaPO claim 1 , comprising:{'sub': 2', '3', '2', '5', 'melt, 'preparing La-phosphate frit particles comprising: melting a mixture of LaO:POin a mole ratio of from 25:75 to 20:80 at a suitable melting temperature (T); and then pouring, rolling, and milling the resulting melt mixture to frit particles of a suitable particle size; and'}{'sub': 1', '4', '3', '9', 'melt', '1, 'heating the resulting frit particles in admixture with a lanthanum source to a reactive-ceramming temperature (T) for a sufficient time to form the mixture of LaPOand LaPO, wherein Tis greater than T.'}5. The method of wherein a suitable melting temperature (T) of the glass frit is of from 1400 to 1700° C. claim 4 , a reactive-ceramming temperature (T) is of from 1200 to 1500° C. claim 4 , and for a sufficient time.6. A sealing ...

GLASS ARTICLES MADE FROM LAMINATED GLASS TUBING AND SYSTEMS AND METHODS FOR CONVERTING LAMINATED GLASS TUBING INTO THE GLASS ARTICLES

Methods for producing glass articles from laminated glass tubing include introducing the glass tubing to a converter. The glass tubing includes a core layer under tensile stress, an outer clad layer under, and an inner clad layer. The methods include forming a feature the glass article at a working end of the laminated glass tubing and separating a glass article from the working end of the laminated glass tubing, which may expose the core layer under tensile stress at the working end of the glass tubing. The method further comprises remediating the exposed portion of the core layer by completely enclosing the core layer in a clad layer. Systems for re-cladding the exposed portion of the core layer as well as glass articles made using the systems and methods are also disclosed. 1. A glass article comprising:a laminated glass comprising a core layer under a tensile stress and at least one clad layer, wherein at least one of the at least one clad layer is under a compressive stress, wherein the core layer is completely enclosed within the at least one clad layer; andat least one feature formed in the laminated glass.2. The glass article of claim 1 , wherein the core layer is completely isolated from the atmosphere by the at least one clad layer.3. The glass article of claim 1 , wherein the at least one clad layer comprises an inner clad layer and an outer clad layer and the inner clad layer and the outer clad layer cooperate to enclose the core layer.4. The glass article of claim 3 , wherein the inner clad layer claim 3 , the outer clad layer claim 3 , or both are under compressive stress.5. The glass article of claim 3 , wherein the inner clad layer comprises an inner glass composition that is classified as a Type I glass under United States Pharmacopoeia (USP) <660>.6. The glass article of claim 3 , wherein the inner clad layer comprises a borosilicate glass.7. The glass article of claim 1 , wherein the glass article is a pharmaceutical container.8. The glass article ...

EXTERIOR PART FOR A TIMEPIECE OR PIECE OF JEWELRY

The present invention relates to a method for manufacturing an exterior part for a timepiece or piece of jewelry made of Murano glass, said method comprising the following steps: providing a material formed of glass rods (), also referred to as glass tubes, arranged side by side; multi-cycle heat treatment to consolidate the material and form a blank; machining the blank to produce the exterior part, the method being characterised in that the heat treatment comprises a first cycle (a) consisting of heating the material from a temperature less than or equal to 100° C. to a temperature between 450 and 650° C. at a heating rate between 4 and 12° C./min in order to avoid the formation of air bubbles during the manufacturing of the blank. It also relates to the exterior part for a timepiece or piece of jewelry, in particular a watch case, having a structure with few or no air bubbles. 2. The method according to claim 1 , characterized in that the first cycle (a) consists in heating the material from a temperature comprised between 500 and 600° C. claim 1 , preferably between 525 and 575° C. claim 1 , at a heating rate comprised between 5 and 10° C./min claim 1 , preferably between 6 and 9° C./min.32. The method according to claim 1 , characterized in that the heat treatment includes a second cycle (b) following the first cycle (a) claim 1 , consisting in stabilizing the movement of the glass rods () claim 1 , this second cycle (b) being done at a substantially constant temperature comprised between 450 and 650° C. claim 1 , preferably between 500 and 600° C. claim 1 , more preferably between 525 and 575° C. claim 1 , for a time comprised between 40 and 140 minutes claim 1 , preferably between 70 and 110 minutes claim 1 , more preferably between 80 and 100 minutes.42. The method according to claim 3 , characterized in that the heat treatment includes a third cycle (c) following the second cycle (b) claim 3 , the third cycle (c) consisting in consolidating the glass rods ...

VACUUM GLASS AND PREPARATION METHOD THEREOF

The present invention provides a vacuum glass and a preparation method thereof. The vacuum glass comprises a glass body, a cavity enclosed by the glass body and a sealant, and a getter disposed in the cavity; the cavity is hermetic; the getter is a non-evaporable getter, the vacuum glass does not comprise an enclosure for enclosing the getter, and the enclosure is made of a hermetic material; and in a direction passing through the cavity, the vacuum glass has a thermal conductivity value K less than or equal to 4 W/(m·K). The vacuum glass does not comprise an enclosure for enclosing the getter. 123-. (canceled)24. A method for preparing a vacuum glass , comprising the following steps:i) enclosing a cavity with a glass body and a sealant, and disposing a getter in said cavity;ii) heating the product of step i) in a vacuum environment, whereby creating a vacuum in said cavity, welding said sealant and said glass body together, and activating said getter;iii) cooling the product of step ii), and then obtaining a vacuum glass;wherein, in step ii), temperature increasing speed is reduced or temperature increase is stopped once bubbles start to form in the sealant.2527-. (canceled)28. The method according to claim 24 , wherein step iii) comprises reducing the degree of vacuum and the temperature in the furnace by reducing the pressure in the furnace to atmospheric pressure when the sealant is still in a semi-solid state claim 24 , subsequently lowering the temperature in the furnace to a solidification temperature of the sealant claim 24 , and then opening the furnace to obtain the product.29. The method according to claim 24 , wherein step iii) comprises reducing the degree of vacuum and the temperature in the furnace by reducing the pressure in the furnace to atmospheric pressure within 5 to 10 minutes claim 24 , lowering the temperature of the furnace to 50° C. or less within 10 to 12 hours claim 24 , and opening the furnace to obtain the product.30. The method ...

HEATING BURNER FOR PRODUCING AN INTEGRAL BOND BETWEEN COMPONENTS OF QUARTZ GLASS

Known heating burners for producing a welded joint between components of quartz glass include a burner head in which at least one burner nozzle is formed, a burner-head cooling system for the temperature control of the burner head and a supply line connected to the burner nozzle for a fuel gas. Starting from this, to modify a heating burner in such a way that impurities in the weld seam between quartz-glass components to be connected are largely avoided, it is suggested that the burner head should include a base body of silver or of a silver-based alloy. 1. A heating burner for producing a welded joint between components of quartz glass , comprising:a burner head in which at least one burner nozzle is formed;said burner head comprises a base body of silver or of a silver-based alloy;a burner-head cooling system for the temperature control of the burner head;wherein in said burner-head cooling system two cooling water pipes for the cooling water supply and cooling water discharge are connected to each other via a fluidically continuous cooling channel; anda supply line connected to the burner nozzle for a fuel gas or a fuel gas mixture;wherein in said base body at least one burner nozzle is designed as a tubular insertion part of silver or of a silver-based alloy, that is inserted into a through hole in the base body.2. The heating burner of claim 1 , wherein the silver content of the base body of the burner head is at least 90% by wt.3. The heating burner of claim 1 , wherein the silver content of the base body of the burner head is at least 99% by wt.4. The heating burner of claim 1 , wherein a burner mouth which faces the connection surfaces is polished.5. The heating burner of claim 1 , wherein the connection between burner nozzle and gas supply line is configured as a detachable positive connection.6. A heating burner for producing a welded joint between components of quartz glass claim 1 , comprising:a burner head in which at least one burner nozzle is formed; ...

HALF-CELL FOR MEASURING A pH VALUE, METHOD FOR PRODUCING A HALF-CELL, AND POTENTIOMETRIC SENSOR

A half-cell for measuring a pH value of a measuring medium is disclosed including a tube-shaped carrier element and a pH-sensitive glass membrane connected to an end section of the carrier element. At least the end section of the carrier element includes a zirconia-containing and/or alumina-containing ceramic. A method for manufacturing a half-cell for pH value measurement and a potentiometric sensor are further disclosed. 1. A half-cell for measuring a pH value of a measuring medium , the half-cell comprising:a tube-shaped carrier element having an end section; anda pH-sensitive glass membrane connected to the end section of the carrier element, wherein at least the end section of the carrier element includes a zirconia-containing and/or alumina-containing ceramic.2. The half-cell of claim 1 , wherein the ceramic has a content of zirconia and/or alumina of at least 80% by weight.3. The half-cell of claim 1 , wherein the ceramic has a content of zirconia and/or alumina of at least 90% by weight.4. The half-cell of claim 1 , further comprising a shaft tube claim 1 , wherein the carrier element is disposed at least partially within the shaft tube such that the shaft tube and the carrier element define an annular chamber claim 1 , the annular chamber containing a reference electrolyte claim 1 , wherein the carrier element defines the inner circumference of the annular chamber.5. The half-cell of claim 1 , wherin the carrier element consists of the zirconia-containing and/or alumina-containing ceramic.6. The half-cell of claim 1 , wherein the ceramic is stabilized with a yttrium compound and/or an alkaline earth metal compound.7. The half-cell of claim 6 , wherein the ceramic is stabilized with a yttrium oxide and/or an alkaline earth metal oxide.8. The half-cell of claim 6 , wherein the yttrium compound and/or alkaline earth metal compound has a content of equal to or less than 20% by weight in the ceramic.9. The half-cell of claim 6 , wherein the yttrium compound and/ ...

GLASS TUBE

Two conventional thick-walled, drawn, fused quartz tubes are arranged the one within the other. At their forward end of them, each is gripped in a collet These forward collets are supported for travel along a track by a distance equivalent to the length of the tubes. A heating, and drawing, station is arranged a short distance back in the length of the tubes from an initial position of the forward chucks. At its furthest end, the outer tube is gripped by a tensioning collet itself supported on the track. The collets are arranged to be driven along the track by respective stepper motors 1. A thick-walled drawn bore glass tube having an outside to inside diameter ratio of at least 7:1 and a consistent diameter internal bore.2. A thick-walled drawn bore glass tube according to claim 1 , wherein the internal bore is 10 mm in diameter or less.3. A thick-walled drawn bore glass tube according to claim 1 , wherein the bore diameter tolerance is +1/−0.25 mm.4. A thick-walled drawn bore glass tube according to claim 1 , wherein the bore diameter tolerance is +/−0.15 mm.5. A thick-walled drawn bore glass tube according to claim 1 , wherein the outside to inside diameter ratio is between 7:1 to 30:1.6. A thick-walled drawn bore glass tube according to claim 1 , wherein the outside to inside diameter ratio is between 8:1 to 16:1 and preferably between 8:1 to 12:1.7. A thick-walled drawn bore glass tube according to claim 1 , wherein the internal bore is between 3 mm and 7 mm and preferably between 4 mm and 6 mm.8. A thick-walled drawn bore glass tube according to claim 1 , wherein the glass tube is of fused quartz.9. A thick-walled drawn bore glass tube according to claim 1 , wherein the exterior of the tube has a drawn finish.10. A thick-walled drawn bore glass according to claim 1 , wherein the exterior of the tube has a ground finish.11. A thick-walled drawn bore glass tube according to claim 1 , the tube having been formed by:arranging a drawn inner tube of determined ...

METHOD FOR FABRICATING AN OPTICAL FIBRE PREFORM

A method of making an optical fibre preform comprising providing a hollow outer tube of glass, providing a hollow primary capillary tube of glass with an outer diameter smaller than an inner diameter of the outer tube, positioning the primary capillary tube inside the outer tube such that an outer surface of the primary capillary tube lies against an inner surface of the outer tube along a contact line parallel to the longitudinal axes of the primary capillary tube and the outer tube, and bonding the primary capillary tube into its position inside the outer tube by directing a laser beam onto a surface of the outer tube or the primary capillary at one or more locations aligned with the contact line. 1. A method of making an optical fibre preform comprising:providing a hollow outer tube of glass;providing a hollow primary capillary tube of glass with an outer diameter smaller than an inner diameter of the outer tube;positioning the primary capillary tube inside the outer tube such that an outer surface of the primary capillary tube lies against an inner surface of the outer tube along a contact line parallel to the longitudinal axes of the primary capillary tube and the outer tube; andbonding the primary capillary tube into its position inside the outer tube by directing a laser beam onto a surface of the outer tube or the primary capillary tube at one or more locations aligned with the contact line.2. A method according to claim 1 , in which the laser beam deposits heat energy to cause softening of the glass of at least the outer tube or the primary capillary tube to enable the bonding.3. A method according to claim 2 , in which the laser beam undergoes linear optical absorption in the glass.4. A method according to claim 2 , in which the laser beam undergoes nonlinear optical absorption in the glass.5. A method according to claim 1 , in which the laser beam undergoes nonlinear optical absorption in the glass to generate photo-ionisation to enable the bonding.6. A ...

Method for producing a hermetic housing for an electronic device

A method produces a housing with at least one hermetically sealed receiving space for an electronic component, the receiving space including at least a part of the interior of the housing. In the method, a hollow body made of glass and having at least one opening is produced/provided, at least one electronic device is introduced through the at least one opening, and the receiving space is hermetically sealed by melting the housing, or the at least one opening is sealed by laser radiation. A device has an at least partially hermetically sealed housing made of silicon, particularly a housing produced according to the above-mentioned method.

PROCESS FOR JOINING OPAQUE FUSED QUARTZ TO CLEAR FUSED QUARTZ

Processes for fusing opaque fused quartz to clear fused quartz to form ultraviolet light transmission windows comprise surrounding a clear fused quartz ingot with an opaque fused quartz sleeve or opaque fused quartz particles, then heating the clear and opaque fused quartz together in a furnace, past the transition temperature of the opaque fused quartz, in order to join the two types of quartz together around the perimeter of the clear fused quartz ingot, but without substantial mixing beyond the interface. 1. A process for fusing an opaque fused quartz perimeter to a clear fused quartz ingot comprisingplacing a sleeve of opaque fused quartz in a mold, said sleeve surrounding a void having a first width and extending from the top plane of the sleeve through the bottom plane of the sleeve,inserting a clear fused quartz ingot having a second width into the void, wherein the second width is slightly narrower than the first width such that a small gap exists between the inner sidewalls of the sleeve and the outer sidewalls of the ingot,heating the mold containing the ingot and surrounding sleeve in a melting furnace, said heating taking place under a vacuum, until the opaque fused quartz fuses to the clear fused quartz ingot to form a clear fused quartz ingot comprising an opaque fused quartz perimeter, andannealing the clear fused quartz ingot comprising an opaque fused quartz perimeter so formed,{'sup': '3', 'wherein the opaque fused quartz sleeve comprises a density of from about 2.12 to about 2.19 g/cmand a porosity of from about 2% to about 4.5% per unit volume, and at least about 80% of the pores have a bubble size of from about 15 microns to about 45 microns.'}2. The process according to claim 1 , wherein the sleeve comprises a unitary sleeve.3. The process according to claim 1 , wherein the sleeve comprises a plurality of opaque fused quartz bands claim 1 , and the heating step further fuses the bands together.4. The process according to claim 3 , wherein the ...

GLASS LAMINATE HAVING INCREASED STRENGTH

A method for producing a glass article having a compressive stress zone close to the surface by redrawing a preform having a rectangular cross section is provided. The preform includes at least a first and a second glass, wherein both glasses are not connected to each other in the preform in a force-fitting manner. The second glass has a higher thermal expansion coefficient than the first glass and is located in the preform in the interior of the glass tube of the first glass. A glass laminate having increased strength is also provided, which is composed as an at least three-layer composite material of at least two different glasses. The individual layers of the layer composite are connected to each other over the entire area and in a non-positive manner, in particular by melting, and the glass laminate has a thermally stable compressive stress zone in the areas close to the surface of the layer composite and a tensile stress zone in the inner region of the layer composite. 1. A method for producing a glass article that has a compressive stress zone close to the surface by redrawing , comprising at least the steps of:providing a preform comprising at least a first glass and a second glass, the second glass having a higher thermal expansion coefficient than the first glass, the first glass being a glass tube of a length (L) with two sides extending over a width (B), and the second glass is located inside the glass tube; andredrawing the preform so that the preform passes through a hot zone to form a drawing onion and is subsequently reshaped by application of mechanical force.2. A method for producing a glass article that has a compressive stress zone close to the surface by redrawing , comprising at least the steps of:providing a preform comprising at least a first glass and a second glass, the second glass has a higher thermal expansion coefficient than the first glass, the first glass has a length (L) with two sides extending over a width (B), and the second glass ...

METHOD FOR PRESSING OR WELDING THE PROTECTIVE COVER OF A HIGH TEMPERATURE SENSOR

The invention relates to a method for producing a protective cover for a high temperature sensor comprising a sensor element, a protective enveloping which at least partially surrounds the sensor element. Said protective cover is secured to the protective enveloping. Also, said protective cover is produced according to a deep-drawing method and/or the protect cover is produced by applying heat with subsequent fusion to at least one side and/or the protective cover is produced by closing the protective enveloping by means of a base stop, in particular by pressing and/or soldering, and/or the protective cover is produced by closing one side according to a shaping method, in particular tumbling, and/or a soldering method and/or said protective cover is secured to the protective tube according to a comparable method. According to the invention, said protective cover is welded and/or pressed to the protective cover. 111213141. A method for producing a protective cap (; ; ; ;{'b': 51', '61', '71', '10', '20', '30', '40', '50', '60', '70', '2', '3', '4', '2', '3', '11', '21', '31', '41', '51', '61', '71', '4, '; ; ) for a high-temperature sensor (; ; ; ; ; ; ) comprising a sensor element (; ), and a protective envelope () surrounding the sensor element (; ) at least partially, wherein the protective cap (; ; ; ; ; ; ) is fixed to the protective envelope (), and wherein'}{'b': '11', 'the protective cap () is produced by a deep-drawing process, and/or'}{'b': 21', '21, 'the protective cap () is produced by the introduction of heat, with subsequent fusion of at least one side of the protective cap (), and/or'}{'b': 31', '4', '31, 'the protective cap () is produced by closing the protective envelope () by means of a bottom plug (), by pressing and/or welding, and/or'}{'b': '41', 'the protective cap () is produced by closing the at least one side by a wobbling and/or a welding process, and/or'}{'b': 11', '21', '31', '41', '51', '61', '71', '4, 'the protective cap (; ; ; ; ; ; ) ...

Hydrogen Gas High Pressure Storage System

A device for the storage of compressed hydrogen gas comprises a plurality of glass capillary tubes each having a sealed extremity and an open extremity, wherein said plurality of glass capillary tubes is sheathed in an external tubular cover, and wherein the open end of a bundle of said tubular covers is housed in an adaptor, and wherein said adaptor is suitable to allow compressed hydrogen gas to be added to, and to prevent said hydrogen gas from escaping from, said glass capillary tubes. 1. A device for the storage of compressed hydrogen gas , comprising a plurality of glass capillary tubes each having a sealed extremity and an open extremity , wherein said plurality of glass capillary tubes is sheathed in an external tubular cover , and wherein the open end of a bundle of said tubular covers is housed in an adaptor , and wherein said adaptor is suitable to allow compressed hydrogen gas to be added to , and to prevent said hydrogen gas from escaping from , said glass capillary tubes.2. A device according to claim 1 , wherein the bundle of tubular covers is connected to the adaptor at the open end with gluing material.3. A device according to claim 2 , wherein the gluing material is an epoxy resin.4. A device according to claim 3 , further comprising sealing material.5. A device according to claim 1 , wherein the adaptor is provided with a sealing valve.6. A device according to claim 5 , wherein the valve is integral with the adaptor.7. A device according to claim 5 , wherein the valve is coupled to the adaptor.8. A method for generating a capillary tube with one closed end claim 5 , comprising providing an open-ended capillary tube claim 5 , applying a glass cupping to one open end and then melting the glass at said end.9. A system for the storage of compressed hydrogen gas claim 1 , comprising an array of two or more devices according to claim 1 , said two or more devices being connected to a common conduit for the addition of gas to claim 1 , and withdrawal of ...

PROCESS FOR THE MANUFACTURE OF A GLASS CONTAINER, GLASS CONTAINER AND RELATED USES

The present invention relates to a process for the manufacture of a glass container that comprises the steps of: a) providing a first glass element; b) providing a second element made of a material selected from: glass, ceramic, metal and metallic alloy; said first element and said second element, joined together, defining a containment cavity of said glass container; c) depositing a sealing composition comprising at least one glass frit dispersed in at least one dispersing liquid on at least one surface of at least one of said first element and said second element; d) positioning said first element and said second element in contact with each other so that said sealing composition is arranged between said first element and said second element; e) heating said sealing composition so as to melt said glass frit and form a sealing layer between said first element and said second element. The present invention further relates to a glass container, such as, for example, a bottle, a cup or a jar, and related uses. 1. A process for the manufacture of a glass container comprising the steps of:a) providing a first glass element;b) providing a second element made of a material selected from: glass, ceramic, metal and metallic alloy;said first element and said second element, joined together, defining a containment cavity of said glass container;c) depositing a sealing composition comprising at least one glass frit dispersed in at least one dispersing liquid on at least one surface of at least one of said first element and said second element;d) positioning said first element and said second element in contact with each other so that said sealing composition is arranged between said first element and said second element;e) heating said sealing composition so as to melt said glass frit and form a sealing layer between said first element and said second element.2. The process according to claim 1 , wherein said first element and said second element are made of glass.3. The ...

SYSTEM AND METHOD FOR FORMING A QUARTZ GLASS OPTICAL COMPONENT

A method of producing a quartz glass optical component is provided. The method includes providing a cylindrical quartz glass body made of core rod glass and cladding glass. The quartz glass body has a square cut first end having a first outer diameter. The method further includes providing a glass handle having a first end and an opposing square cut second end having a second outer diameter which is between 50% and 110% of the first outer diameter; attaching the square cut end of the glass handle to that of the quartz glass body; and using the glass handle to guide the quartz glass body through a draw furnace. A distortion in a clad-to-core ratio proximate the interface of the cylindrical quartz glass body and the glass handle is less than 5%. 1. A method of producing a quartz glass optical component , the method comprising:providing a cylindrical quartz glass body comprised of core rod glass and cladding glass surrounding the core rod glass, the cylindrical quartz glass body having a square cut first end having a first outer diameter, an opposing second end, and a longitudinal axis extending between the opposing first and second ends;providing a glass handle having a first end and an opposing square cut second end having a second outer diameter, the second outer diameter being between 50% and 110% of the first outer diameter;attaching the square cut second end of the glass handle to the square cut first end of the quartz glass body to define an interface; andusing the glass handle to guide the quartz glass body through a draw furnace to heat the core rod glass and the cladding glass of the quartz glass body to produce a quartz glass optical component, wherein a distortion in a clad-to-core ratio proximate the interface is less than 5%.2. The method according to claim 1 , wherein a composition of the glass handle is the same as a composition of the cylindrical quartz glass body.3. The method according to claim 1 , wherein a composition of the glass handle is ...

HIGH-STRENGTH WELDING PROCESS FOR MAKING HEAVY GLASS PREFORMS WITH LARGE CROSS SECTIONAL AREAS

An apparatus and related process for producing a high-strength weld between two glass components. Chucks clamp and move respective first ends of the glass components toward each other inside an enclosure, where the second ends are heated, softened, and welded together in a weld zone. The enclosure has layers of stacked quartz glass bricks and allows the weld zone to cool slowly and avoid stress. A propane quartz melting torch directs a flame inside the enclosure and toward the second ends as the glass components move toward each other. The flame softens the second ends and creates substantially smooth polished surfaces in the weld zone having an increased hydroxide content. At least 80% of the weld zone has a hydroxide content greater than about 10 ppm average in a 10 μm depth from the surface and the tensile strength of the weld zone is above about 10 MPa. 1. An apparatus for creating a high-strength weld seam in the center of a weld zone between two glass components , each glass component having a first end , an opposing second end , and a ground surface , the apparatus comprising:a first chuck configured to clamp the first end of the first glass component and a second chuck configured to clamp the first end of the second glass component, the first chuck and the second chuck moving the glass components toward each other;an enclosure in which the second end of the first glass component and the second end of the second glass component are moved toward each other, heated, softened, and welded together to form the weld seam in the weld zone, the enclosure having layers of stacked quartz glass bricks and allowing the weld zone to cool slowly and avoid stress in the weld zone; andat least one propane quartz melting torch directing a flame inside the enclosure and toward the second ends of the glass components as the glass components move toward each other, the flame softening the second ends of the glass components and creating substantially smooth polished surfaces in ...

Glass atomizer and production method thereof

A glass atomizer includes an atomizer housing, wherein: a diameter of the atomizer housing is 5.8-6.2 mm; a nozzle is formed at a top part of the atomizer housing; an outlet of the nozzle has a diameter of 2.4-2.5 mm; a limiting convex member is arranged at a bottom part of the atomizer housing; a conical hollow connection member is formed at an inner wall of the bottom part of the atomizer housing; a top part of the connection member extends upward and forms an atomizer core tube; the atomizer core tube and the atomizer housing are concentric; an inlet tube is integrally formed at a side of the atomizer housing; and a groove is opened at an outer wall of the inlet tube. 1. A glass atomizer , comprising an atomizer housing , wherein: a diameter of the atomizer housing is 5.8-6.2 mm; a nozzle is formed at a top part of the atomizer housing; an outlet of the nozzle has a diameter of 2.4-2.5 mm; a limiting convex member is arranged at a bottom part of the atomizer housing; a conical hollow connection member is formed at an inner wall of the bottom part of the atomizer housing; a top part of the connection member extends upward and forms an atomizer core tube; the atomizer core tube and the atomizer housing are concentric; an inlet tube is integrally formed at a side of the atomizer housing; and a groove is opened at an outer wall of the inlet tube.2. The glass atomizer claim 1 , as recited in claim 1 , wherein: the atomizer housing has a diameter of 6 mm and a length of 50 mm; the outlet of the nozzle has a diameter of 2.5 mm.3. The glass atomizer claim 1 , as recited in claim 1 , wherein: a working pressure of the glass atomizer is 0.1 MPa claim 1 , a flow amount of the glass atomizer is 260-320 ml/min claim 1 , and a liquid lifting amount is 0.8-1.2 ml/min.4. A method for producing a glass atomizer; comprising steps of:(1), producing an atomizer housing, particularly comprising steps of: fixing two ends of a first glass tube at a lathe, wherein a rotation speed of ...

FABRICATING METHOD FOR QUARTZ VIAL

In a fabricating method for a quartz vial having a body part for containing a substance, a bottom part closing a lower end of the body part, a cylindrical neck part disposed at an upper end of the body part, a cylindrical mouth part disposed above the neck part and having an outer diameter larger than that of the neck part, and a tapered portion connecting the mouth part and the neck part to each other, outer peripheral surfaces of the tapered portion and the neck part are formed by shaving, and the body part that is separately fabricated is welded to the neck part. Thus, quartz vials having a predetermined shape can be mass-fabricated.

Fused quartz horizontal furnace and assembly

소성로 조립체(furnace assembly)는 제1 섹션 및 제2 섹션을 포함한다. 제1 섹션은 제1 단 및 제2 단, 제1 단에 배치된 제1 조인트(joint), 제2 단에 있는 원추형 부분, 제1 단과 제2 단 사이에 배치된 제1 필터, 및 제1 필터와 유체 연통(fluid communication)하여 제1 섹션을 통해 연장되는 루멘(lumen)을 포함한다. 제2 섹션은 제1 단 및 제2 단, 제1 단에 배치된 제2 조인트, 제2 단에 배치되고 제1 섹션의 원추형 부분을 받아들이기 위한 개구부(opening), 제1 단과 제2 단 사이에 배치된 제2 필터, 및 제2 필터와 유체 연통하여 제2 섹션을 통해 연장되는 루멘을 포함한다. 제1 섹션과 제2 섹션이 맞물릴 때 제1 섹션과 제2 섹션은 제1 필터와 제2 필터 사이에 챔버를 형성한다. 챔버는 제1 섹션과 제2 섹션의 각각의 제1 단과 유체 연통한다. The furnace assembly includes a first section and a second section. The first section includes a first end disposed at a first end and a second end, a first joint disposed at a first end, a conical portion at a second end, a first filter disposed between the first end and the second end, And a lumen extending through the first section in fluid communication with the filter. A second joint disposed at a first end, an opening disposed at a second end and receiving a conical portion of the first section, a second joint disposed between the first and second ends, And a lumen extending through the second section in fluid communication with the second filter. The first section and the second section form a chamber between the first filter and the second filter when the first section and the second section are engaged. The chamber is in fluid communication with a respective first end of the first section and the second section.

An optical fiber manufacturing process

本发明公开了一种光纤的制造工艺，包括以下步骤：1)将辅助棒和预制棒分别固定在两个同轴设置的卡盘上，移动卡盘，使预制棒与辅助棒靠拢；2)控制两个卡盘以相同速度转动，通过喷灯对预制棒与辅助棒相互靠拢的端部进行加热；3)预制棒和辅助棒端部融化，控制两个卡盘相对运动，使预制棒与辅助棒的两个端部相互交接，熔融成一体；4)用石墨块对预制棒和辅助棒的交接处进行按压，防止形成凸起；5)预制棒与辅助棒完成熔接，自然冷却5～20分钟后，对预制棒和辅助棒进行检测，判断熔接是否合格；如不合格，重复步骤3)～5)。本发明通过石墨对预制棒和辅助棒的交接处进行按压，保证预制棒与辅助棒的可靠熔接，防止形成凸起。

Vacuum glass and manufacturing method thereof

진공 유리 및 이의 제조 방법이 개시된다. 진공 유리는, 유리체, 유리체 및 밀봉재에 의해 둘러싸인 공동, 및 공동 내에 배치된 게터를 포함한다. 공동은 밀폐형이다. 게터는 비증발성 게터이고, 진공 유리는 게터를 둘러싸기 위한 인클로저를 포함하지 않고, 인클로저는 밀폐형 재료로 제조된다. 공동을 통해 통과하는 방향에서, 진공 유리의 열 전도도 값 K는 4 W/(m 2ㆍ K) 이하이다. 진공 유리는 게터를 둘러싸기 위한 인클로저를 포함하지 않는다.

Double-layer glass and preparation method thereof

本发明属于玻璃生产技术领域，具体涉及一种双层玻璃杯及其制备方法。所述的双层玻璃杯，由如下重量份数的原料制成：石英砂70～80份；石灰石5～8份；钠长石6.5～7份；钾长石0.4～0.5份；纯碱10～15份；硼酸3～5份；石墨烯1～2份；二氧化硅晶须10～15份；氧化锆1.8～3.3份；碳酸锶0.3～0.5份。本发明所述的双层玻璃杯具有良好的拉伸强度和耐磨性，使用寿命长，受到外力撞击后玻璃不会四处飞溅，满足人们安全性的要求；所述的制备方法，科学合理、简单易行。

Quartz glass article and method for forming a quartz glass optical component

석영 유리 광학 소자의 제조 방법이 제공된다. 방법은 코어 막대 유리 및 클래딩 유리로 만들어진 실린더형 석영 유리 본체를 제공하는 단계를 포함한다. 석영 유리 본체는 제1 외경을 갖는 스퀘어 커트 제1 말단을 갖는다. 방법은 제1 말단 및 제1 외경의 50% 내지 110%인 제2 외경을 갖는 대향하는 스퀘어 커트 제2 말단을 갖는 유리 핸들을 제공하는 단계; 유리 핸들의 스퀘어 커트 말단을 석영 유리 본체의 것에 부착하는 단계; 및 유리 핸들을 사용하여 석영 유리 본체를 인선로를 통해 인도하는 단계를 추가로 포함한다. 실린더형 석영 유리 본체와 유리 핸들의 인터페이스에 근접한 클래드-대-코어 비의 왜곡률은 5% 미만이다. A method of manufacturing a quartz glass optical element is provided. The method includes providing a cylindrical quartz glass body made of core rod glass and cladding glass. The quartz glass body has a square cut first end having a first outer diameter. The method comprising: providing a glass handle having a first end and an opposing square cut second end having a second outer diameter of 50% to 110% of the first outer diameter; Attaching a square cut end of the glass handle to the quartz glass body; And guiding the quartz glass body through the wire line using a glass handle. The distortion of the clad-to-core ratio close to the interface between the cylindrical quartz glass body and the glass handle is less than 5%.

Quartz glass article and method for forming a quartz glass optical component

석영 유리 광학 소자의 제조 방법이 제공된다. 방법은 코어 막대 유리 및 클래딩 유리로 만들어진 실린더형 석영 유리 본체를 제공하는 단계를 포함한다. 석영 유리 본체는 제1 외경을 갖는 스퀘어 커트 제1 말단을 갖는다. 방법은 제1 말단 및 제1 외경의 50% 내지 110%인 제2 외경을 갖는 대향하는 스퀘어 커트 제2 말단을 갖는 유리 핸들을 제공하는 단계; 유리 핸들의 스퀘어 커트 말단을 석영 유리 본체의 것에 부착하는 단계; 및 유리 핸들을 사용하여 석영 유리 본체를 인선로를 통해 인도하는 단계를 추가로 포함한다. 실린더형 석영 유리 본체와 유리 핸들의 인터페이스에 근접한 클래드-대-코어 비의 왜곡률은 5% 미만이다.

Shaped body made of brittle material

Formkörper aus sprödbrüchigem Material mit wenigstens einer Öffnung, die mittels eines Verschlußkörpers hermetisch dicht verschlossen ist, wobei der Formkörper und der Verschlußkörper mittels Preß-Verbindungsschweißen dauerhaft miteinander verschweißt sind. Shaped body brittle material with at least one opening, the hermetic by means of a closure body is sealed, wherein the shaped body and the closure body means Press-connection welding permanently welded together are.

Method for the production of an element with a hermetically-sealed air-free chamber

A method for the production of an element (1), with a hermetically-sealed almost air-free chamber (2), in particular for the production of an element (1) with a double wall, comprising an inner wall (9) and an outer wall (8) with a nearly air-free chamber (2) arranged between the inner wall (9) and the outer wall (8), is characterised in that, before the hermetic sealing of the chamber (2), the element (1) is brought into a nearly air-free environment.

Millicane glass and a method for its production

Disclosed is a method particularly suited to lampworking for producing unique surface effects on glass. In addition interlocking glass sections formed from bundles of rods preassembled on a cyclindrical core are disclosed.

Patent FR2120012A1

HOLLOW MOLDED ARTICLE IN BREAKING MATERIAL, PROVIDED WITH A WELDED CLOSING ELEMENT

L'invention concerne un article moulé en un matériau cassant pourvu d'au moins une ouverture traversante (2) qui est obturée de manière hermétique à l'aide d'un élément d'obturation (1). L'article moulé et l'élément d'obturation sont liés l'un à l'autre, de manière permanente, par soudure.

PROCESS AND PLANT FOR THE CONTINUOUS MANUFACTURE OF OPTICAL FIBERS

POUR FABRIQUER EN CONTINU DES FIBRES OPTIQUES, NOTAMMENT A GRADIENT D'INDICE, ON SOUDE BOUT A BOUT DES BARREAUX DE SILICE 7, 8 DESTINES A CONSTITUER LE NOYAU DE LA FIBRE; ON DEPOSE SUR LES BARREAUX, PAR REACTION CHIMIQUE, UNE COURONNE DE SILICE CONTENANT UNE PROPORTION DE DOPANT VARIABLE AU FUR ET A MESURE DE L'AUGMENTATION DE DIAMETRE DE LA COURONNE POUR CONSTITUER DES PREFORMES SUCCESSIVES 23; ET ON FILE LES PREFORMES AU DIAMETRE DE FIBRE. UNE INSTALLATION PERMETTANT DE METTRE EN OEUVRE CE PROCEDE COMPORTE DES MOYENS D'AVANCE CONTINUE GRACE AUXQUELS TOUTES LES OPERATIONS S'EFFECTUENT EN SUCCESSION. IN ORDER TO CONTINUOUSLY MANUFACTURE OPTICAL FIBERS, IN PARTICULAR IN INDEX GRADIENT, SILICA BARS 7, 8 ARE WELDED END TO END TO CONSTITUTE THE CORE OF THE FIBER; A SILICA CROWN CONTAINING A VARIABLE PROPORTION OF DOPANT AS FUR AND AS THE DIAMETER OF THE CROWN INCREASE IS DEPOSITED ON THE BARS, BY CHEMICAL REACTION, TO CONSTITUTE SUCCESSIVE PREFORMS 23; AND WE THREAD THE PREFORMS TO THE DIAMETER OF FIBER. AN INSTALLATION ALLOWING THE IMPLEMENTATION OF THIS PROCEDURE INCLUDES MEANS OF CONTINUOUS ADVANCE THANKS TO WHICH ALL OPERATIONS ARE PERFORMED IN SUCCESSION.

Process for joining opaque fused quartz to clear fused quartz

Processes for fusing opaque fused quartz to clear fused quartz to form ultraviolet light transmission windows comprise surrounding a clear fused quartz ingot with an opaque fused quartz sleeve or opaque fused quartz particles, then heating the clear and opaque fused quartz together in a furnace, past the transition temperature of the opaque fused quartz, in order to join the two types of quartz together around the perimeter of the clear fused quartz ingot, but without substantial mixing beyond the interface.

Process of welding materials with glass or similar components

Welding method for joining components made of high silica material and apparatus for carrying out the method

Patent FR2488595B1

Equal-diameter glass tube welding device

本发明涉及一种熔接装置，尤其涉及一种等径玻璃管熔接装置。要解决的技术问题是如何设计一种对玻璃管夹持简单，能够使玻璃管均匀受热的等径玻璃管熔接装置。一种等径玻璃管熔接装置，包括有底座，底座的顶部两侧均安装有螺杆；摇柄，底座上其中一侧螺杆的端部连接有摇柄；圆盘，螺杆另一端两侧之间均安装有圆盘；连接杆，两侧圆盘之间连接有连接杆；滑动座，底座的顶部两侧均滑动式地安装有滑动座，两侧螺杆分别穿过两侧的滑动座；夹持组件，滑动座上安装有夹持组件。本发明通过热熔组件能够使玻璃管熔接的头端均匀受热，保证熔接质量，而且在对接时无需人工手动对接，避免玻璃管对接后发生弯曲。

MIRROR LIGHT MIRROR FOR ASTRONOMY AND PROCESS FOR PRODUCING SAME FOR SUCH

MIROIR LEGER POUR L'ASTRONOMIE, COMPRENANT UNE PLAQUE MIROIR, UNE PLAQUE DORSALE ET UNE OSSATURE DISPOSEE ENTRE LES DEUX PLAQUES ET CONSTITUEE PAR PLUSIEURS RANGEES DE TUBES. LES RANGEES DE TUBES SONT DECALEES. CHAQUE TUBE D'UNE RANGEE PRESENTE UNE LIGNE 6 OU BANDE DE CONTACT, AVEC DEUX TUBES CONTIGUS D'UNE RANGEE VOISINE. LES TUBES SONT REUNIS PAR SOUDAGE LE LONG DE LA LIGNE OU BANDE DE CONTACT. L'EPAISSEUR DE PAROI DES TUBES EST REDUITE AU VOISINAGE DE LA LIGNE OU BANDE DE CONTACT. LIGHTWEIGHT MIRROR FOR ASTRONOMY, CONSISTING OF A MIRROR PLATE, A BACK PLATE AND A FRAME ARRANGED BETWEEN THE TWO PLATES AND CONSTITUTED BY SEVERAL ROWS OF TUBES. THE ROWS OF TUBES ARE OFFSET. EACH TUBE IN A ROW SHOWS A 6 LINE OR CONTACT BAND, WITH TWO CONTIGUOUS TUBES FROM A NEIGHBORING ROW. THE TUBES ARE JOINED BY WELDING ALONG THE LINE OR CONTACT TAPE. THE WALL THICKNESS OF THE TUBES IS REDUCED TO THE NEIGHBORHOOD OF THE CONTACT LINE OR BAND.

Astronomical mirror - of light weight using hollow glass tubes as structural support

Alcohol indicator ampoule for inserting either way in breathalyser - with economical mass prodn. method of locating indicator granules

The ampoule is of the hollow cylindrical type contg. granules intended to react with and indicate exhaled alcohol. The granules are sandwiched between the diametral, perforated screening discs. The ampoule has glass ends to be broken off prior to insertion in a breathalyser. A hollow, cylindrical ampoule body is held in a vertical position while its top end is fitted with a glass end which has an annular skirt fitting closely within and extending axially into the body. The body is inverted to bring the open end uppermost. A perforated screening disc is inserted and locates against the annular skirt of the fitted end. A measured dose of granules is dropped into the body to rest on the screening disc. A second screening disc is inserted to trap the granules between itself and the lower disc. A glass end is fitted at the top end of the body. As at the other end, the top glass end has an annular skirt which is pushed into the body to locate the upper screening disc. The ampoules are cheaply mass produced an can be inserted either way into the breathalyser.

BAR LENS AND METHOD FOR MANUFACTURING THE SAME

Lentille barreau et procédé de fabrication de celle-ci . Un verre à fusion (1) et un verre à support (2) ou un support (3) métallique sont chauffés de telle manière que seul le verre à fusion (1) entre en fusion et qu'une calotte sphérique est formée, laquelle constitue un élément à lentille (10) en liaison avec un élément guide de lumière (20). Plusieurs lentilles barreaux peuvent former un agencement matriciel.

PRODUCT IN VITROCERAMIC WITH SEAL (S); MANUFACTURING

La présente invention a pour objet :- des produits en vitrocéramique (10; 20; 30; 40; 50; 60; 70; 80; 90), dont la structure vitrocéramique, monocomposante ou multicomposante, présente au moins un joint de soudure (100) , ainsi qu'- un procédé de fabrication de tels produits (10; 20; 30; 40; 50; 60; 70; 80; 90), qui inclut la mise en oeuvre d'au moins un soudage, dont le(s)dit(s) joint(s) de soudure (100) constitue(nt) la signature.La présente invention est basée sur une maîtrise du soudage de verres, précurseurs de vitrocéramiques. The present invention relates to: - glass-ceramic products (10; 20; 30; 40; 50; 60; 70; 80; 90), whose glass-ceramic structure, single-component or multi-component, has at least one weld joint (100 ), as well as - a process for manufacturing such products (10; 20; 30; 40; 50; 60; 70; 80; 90), which includes the implementation of at least one welding, of which the (s ) said solder joint (s) (100) constitute (s) the signature. The present invention is based on a mastery of the welding of glasses, precursors of glass-ceramics.

GLASS FIBER MANUFACTURING PROCESS

L'invention concerne la fabrication des fibres optiques. On forme des particules de verre en soumettant du gaz de matériau brut de verre à une hydrolyse à la flamme, on fait déposer lesdites particules sur un élément de départ de manière que l'épaisseur des particules croisse dans le sens axial, on fritte le corps ainsi forme de manière à former un cylindre, on insère le cylindre dans un tube en quartz de maniere à former un ensemble, on chauffe l'ensem le pour fondre entre eux le cylindre et le tube et on tire l'ensemble en une fibre mince. Le cylindre 13 présente un indice de réfraction supérieur à celui d'une enveloppe intermédiaire, et le tube de verre formant une chemise 14 entoure cette enveloppe. Les fibres de verre selon l'invention sont réalisées à un coût moindre que dans la technique antérieure. The invention relates to the manufacture of optical fibers. Glass particles are formed by subjecting raw glass material gas to flame hydrolysis, said particles are deposited on a starting element so that the thickness of the particles increases in the axial direction, the body is sintered thus formed so as to form a cylinder, the cylinder is inserted into a quartz tube so as to form an assembly, the assembly is heated to melt the cylinder and the tube between them and the assembly is pulled into a thin fiber . The cylinder 13 has a refractive index greater than that of an intermediate envelope, and the glass tube forming a jacket 14 surrounds this envelope. The glass fibers according to the invention are produced at a lower cost than in the prior art.

GLASS ELEMENT WITH SIDE TRANSMISSION

Patent FR2504689B3

Repair of large glass vessels - using a clamp assembly and electric furnace

Method of producing a stack of plates

A method of the production of a stack of glass plates which comprises the steps of covering a first plate of glass with grains (particles) of a grain fraction (particle-size fraction), limited to no more than 25 microns with no more than 25% of the particles being of the upper grain-size limit, whereby the grains are spacedly disposed in a single layer; at distances surpassing the average grain size. The second plate of glass is applied to the first plate of glass, and the process is repeated until the desired number of glass plates have been stacked, and the stack is heated with application of pressure, and finally the stack is cooled.

Method for forming an improved weld between a primary preform and a silica bar

The invention relates to a method for welding one end of a primary preform and one end of a silica bar having different properties. The method includes the steps of projecting and fusing silica grain under a plasma torch onto an end of the primary preform and an end of the silica bar, and bringing into contact these respective ends to form an excellent weld between the primary preform and the silica bar. The invention provides a cost-effective way to secure a primary preform to a glass-working lathe support while reducing the risk of costly preform breakage.

Improvements to discharge tubes

Process for making honeycomb sandwich panels

A process for making a honeycomb sandwich panel in a single furnace cycle which is particularly applicable to making a glass honeycomb sandwich panel as might be utilized in the construction of a glass mirror substrate. In one embodiment, lengths of glass tubing are sandwiched between glass faceplates. On heating to softening temperature, the faceplates are compressed between rigid plates until they are sealed against the open tube ends. Then the sealed tubes are inflated, or the external gas pressure decreased, so the tubes expand and seal also against each other. At the same time the softened faceplates are pressed against and conform to the shape of the rigid restraining plates. One way to achieve inflation of the tubes is with a gas manifold communicating through a hole in the back faceplate and into each tube. A pressure differential is maintained while the glass is cooled until it becomes rigid.

METHOD FOR DECORATING A HOT GLASS OBJECT WITH MELT LIQUID GLASS AND THEREFORE OBTAINED OBJECTS

Glass articles made from laminated glass tubing and systems and methods for converting laminated glass tubing into the glass articles

Methods for producing glass articles from laminated glass tubing include introducing the glass tubing to a converter. The glass tubing includes a core layer under tensile stress, an outer clad layer under, and an inner clad layer. The methods include forming a feature the glass article at a working end of the laminated glass tubing and separating a glass article from the working end of the laminated glass tubing, which may expose the core layer under tensile stress at the working end of the glass tubing. The method further comprises remediating the exposed portion of the core layer by completely enclosing the core layer in a clad layer. Systems for re-cladding the exposed portion of the core layer as well as glass articles made using the systems and methods are also disclosed.

Improvements in quartz work

Hollow tube method for forming an optical fiber

A method for forming an optical fiber from a single characteristic glass includes arraying hollow starter tubes about a central axis with each starter tube contacting its adjoining tubes along respective lines of contact to define a longitudinally extending opening about the central axis. The arrayed starter tubes are heated to cause them to fuse together along their lines of contact, and the fused starter tubes are inserted into a jacketing tube, preferably having the same physical and optical properties as the starter tubes. A pressure differential is established between the interior of the starter tubes and the tube-defined longitudinally extending opening. The tube assembly is heated to allow the established pressure differential to cause portions of the starter tubes to reform by moving toward and to the central axis to create a solid, void-free core and supporting webs. Other portions of the starter tubes expand toward and fuse to the interior surface of the jacketing tube. The resulting optical fiber has a central core supported from the interior of jacketing tube by the starter tube-defined webs with all the structural features of the fiber formed from a glass having the same physical and optical properties.

Device for producing an optical fiber preform.

Method of making goblets and similar articles

High voltage bulb and sensing sealing method

用感应线圈把抵压在灯罩壳体的开口中的周向上的封接晶片的边缘部熔化来在压力器皿中制作高压灯。用所需的填料来充填压力器皿和灯罩壳。用感应线圈来实施感应加热,压在晶片上的感应接收器、灯罩壳或两者把熔化部件夹持接触。可把感应接收器熔化至灯体上,形成整个灯结构的功能性部分。最终的优选灯包括一粘结金属件,可用其方便地来把灯相对灯座电耦合或机械耦合或定位。

Apparatus and method for providing the attachment of a reverse hand-painted decorative art within a glass vessel

An apparatus and method is disclosed for providing the attachment of a reverse hand-painted decorative art within a glass vessel. The glass vessel comprises at least one exterior glass article, at least one interior glass article capable of attaching to at least one exterior glass article, a first access port associated with the interior portion of the at least one interior glass article, and a second access port associated with the interior portion of the at least one exterior glass article. The glass vessel further comprising the at least one interior glass article capable of being reverse hand-painted on the interior portion of the at least one interior glass article through at least one first access port.

Quartz melting burner

Molded element that consists of brittle-fracture material

The invention relates to a molded element that consists of brittle-fracture material with at least one opening that is hermetically sealed by a sealing element, whereby the molded element and the sealing element are permanently bonded together.

Graded refractive index fibers and rods

BWP:gg GRADED REFRACTIVE INDEX FIBERS AND RODS ABSTRACT OF THE DISCLOSURE Gradient refractive index fibers or rods are formed of leachable glass clad glass core preforms drawn to a desired diametral size, bundled together, fused under high compressing forces and rapidly interdiffused at a temperature above their deformation point. Cooling, annealing and separation of the fibers or rods by leaching provides the end product devices which may be cut into lengths required for the lens power desired and end polished. The refractive index gradient is produced by interdiffusion of Tl+ and K+ ions between core and cladding glasses which are selected to contain substantial proportions of thallium oxide and potassium oxide respectively.

Apparatus for making tubular glass blanks

Glass capillary array for fluorescence analysis and manufacturing method thereof

A glass capillary array for fluorescence analysis is provided which is capable of preventing reduction of the transmittance of a laser beam through the glass capillaries during electrophoretic DNA fluorescence analysis, and a method of manufacturing the glass capillary array. The glass capillary array for fluorescence analysis is comprised of a plurality of glass capillaries each having a rectangular cross section and having an internal hole formed therein, and arranged in a row along a direction of irradiation of a laser beam for fluorescence analysis. The glass capillary array has a fluorescence analysis section comprising a portion of each of the glass capillaries positioned in a region including an optical axis of the laser beam and a vicinity thereof, and the glass capillaries are joined together substantially into a single body using a transparent material in at least the fluorescence analysis section.

Patent FR2309482B1

Method for forming a honeycomb structure and resulting article

Device and method for producing a syringe for medical purposes

The invention relates to a device for producing a syringe for medical purposes, said syringe comprising a glass syringe body and a cannula. The inventive device is characterised by a laser beam producing device (3) having a laser resonator (5) for producing a laser beam (9), by a beam formation and/or guiding device (7), and by a receiving device (17) for holding and positioning the syringe body (13).

Method for producing a cylindrical optical component of quartz glass and optically active component obtained by said method

Cylindrical optical components of quartz glass are known, which have an inner zone made of an inner zone glass, which extends in the direction of the longitudinal axis and is surrounded by a jacket zone made of a jacket zone glass, the average wall thickness thereof varying at least over a part of its length in the direction of the longitudinal axis of the component. The aim of the invention is to provide a method that allows a simple and cost-effective production of such an optical component from quartz glass. A method is proposed according to the invention, comprising the following method steps: (a) providing a first parison made of an inner zone glass, which has a first contact surface on the end face, said contact surface having a conical external contour; (b) providing a second parison from the jacket zone glass; (c) embedding the contact surface with a conical external contour into the jacket zone glass and welding the contact surface to the jacket zone glass, thereby forming a composite parison which has a cone-shaped inner zone area of inner zone glass in a contact area, said inner zone area being surrounded by a jacket zone area having the shape of an inner cone; and (d) elongation of the composite parison to form the optical component or a preproduct of the component.

Fusion welding device for optical fiber preform and auxiliary rod

本发明公开了一种用于光纤预制棒与辅助棒的熔接装置，包括：用于熔接光纤预制棒和辅助棒的多个喷灯，2个三爪卡盘，固定辅助棒的隔热陶瓷套，调节装置，基座，活动座和液压推杆；隔热陶瓷套安装有轴向激光发射器；三爪卡盘的两个卡爪上分别安装有径向激光发射器；轴向激光发射器发射的激光光线沿光纤预制棒的轴线贯穿光纤预制棒和辅助棒；同一三爪卡盘的两个径向激光发射器发射的激光光线相交形成一交点；液压推杆驱动活动座相对于基座滑动；三爪卡盘安装至活动座；隔热陶瓷套套接在辅助棒的外周；多个喷灯环绕辅助棒。有益之处在于该熔接装置能够保证对接的精确度避免熔接处弯曲,避免由于光纤预制棒和辅助棒熔接弯曲影响光纤加工。

Matrix and method of making same

Disclosed is an improved assembly or matrix in which a plurality of open-ended, glass-ceramic tubes are disposed in axially parallel relation. The tubes are rigidified into a matrix structure, with the tubes being integrally bound to each other at their tube contact areas. Additional glass-ceramic material at and just below the surface of the matrix structure and arranged in a predetermined pattern across the open-ended face of the matrix integrally binds together the surfaces of the tubes facing the interstices between the tubes. That portion of the pattern overlying the open ends of the tubes fills the tube openings. The additional glass-ceramic material thus provides a wear resistant, matrix-reinforcing surface, a control of the porosity of the matrix structure, and a control of the flow pattern through the matrix. The invention also comprehends the method of reinforcing a matrix of this type by interposing a finely divided, thermally crystallizable frit or other forms of low expansion crystallizable glass between and in the open ends of individual, matrix-defining glass tubes in a predetermined pattern across the open-ended face of a matrix structure and thermally processing the frit or other form of crystallizable glass to convert the frit or other material to low-expansion, glass-ceramic material of substantially the same thermal expansion characteristics as the matrix structure and to fusion bond the frit or other material to the matrix structure.

Hydrogen gas high pressure storage system

A device for the storage of compressed hydrogen gas comprises a plurality of glass capillary tubes each having a sealed extremity and an open extremity, wherein said plurality of glass capillary tubes is sheathed in an external tubular cover, and wherein the open end of a bundle of said tubular covers is housed in an adaptor, and wherein said adaptor is suitable to allow compressed hydrogen gas to be added to, and to prevent said hydrogen gas from escaping from, said glass capillary tubes.

Patent FR2208848A1

Process for manufacturing light weight glass articles of large dimensions and articles thus obtained

Closed-loop tubular lamp envelope and method of manufacture

A closed-loop, tubular lamp envelope and methods of manufacturing closed-loop, tubular lamp envelopes are disclosed. A dome is formed at one end of a light-transmissive tube. A blister is molded on the dome, and a hole is formed in the molded blister. Next, a dome is formed at the other end of the light-transmissive tube. A blister is formed on the dome, and a second hole is formed in the molded blister. Each of the molded blisters includes a rim which defines the respective hole. A second tube is processed in the same way. The respective rims at the ends of the first and second tubes are fused together to form a sealed, closed-loop lamp envelope. Each tube may be bent to provide a desired shape of the lamp envelope. The molding of the rims insures that the sealing surfaces match.

Joining method for glass pipe

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method and apparatus for processing a preform for an optical fibre using a burner

Semiiproduct in optical fiber manufacture* method of manufacturing the same and optical fiber manufactured from the samiiproduct

Rod lens and its manufacturing method

Butt welding optical fiber preforms with a plasma torch

본 발명은 두 개의 광섬유 모재(7 및 9)의 끝과 끝을 함께 조립하는 방법에 관한것으로, 상기 두 개의 원통형 모재(7 및 9)를 공통 장축 A를 따라 일렬로 배치하는 단계, 상기 모재(7 및 9)를 상기 공통축 A를 중심으로 회전시키는 단계, 상기 모재(7 및 9)의 대향 단부들(7A 및 9A)을 히터 수단(15)에 의해 가열하는 단계, 상기 모재(7 및 9)를 상기 공통축 A에 평행하게 서로를 향해 이동시켜시킴으로써 냉각 후에 상기 단부들(7A 및 9A) 간의 밀접한 접촉을 형성시키는 단계 를 포함한다. 본 발명에 따르면, 상기 히터 수단(15)을 상기 단부들(7A 및 9A)에 대하여 공통 장축 A에 직교하는 방사상 방향으로 이동시킴으로써 상기 모재(7 및 9)의 주변부(7B 및 9B)가 가열된 다음 코어(7C 및 9C)가 가열되는 방식으로 가열이 수행된다.

Preparation process for vacuum glass

Method of fusing smaller glass tubing to the inner wals of larger glass tubing

1396066 Sealing glass tubes W R EBERHART 12 Sept 1973 [14 Sept 1972] 42846/73 Heading C1M Articles comprising a small glass tube sealed within a larger glass tube are produced by inserting the smaller tube 12 in the larger tube 10 so that at least a part of the outer wall of the smaller tube contacts the inner wall of the larger tube and so that the smaller tube has one end only open to the interior of the tube; lowering the air pressure within the larger tube; and rotating and heating with a gas burner the larger glass tube while maintaining the lower pressure to cause sealing at the points of contact between the glass tubes. Preferably, prior to cooling the tubes heating is continued while an elevated pressure is created in the interior of the tube 12 and a graphite platen 26 is moved against the tube 10, thereby restoring the tube exterior to its original shape.

PROCEDURE FOR MANUFACTURING A VACUUM GLASS

Patent FR2321710B1

Laminated glass with increased strength

Manufacturing process of thermometers

Laser welding method for glass tube

本发明公开了一种玻璃管的激光焊接方法，其特征在于：分别提供三个激光束，控制激光束的传输方向和聚焦点，使三个激光束的聚焦点分别扫描待焊接玻璃管的环形管壁的三分之一并对玻璃管壁进行焊接，通过三个激光束的扫描范围的组合，实现对整个玻璃管环形管壁的激光横向焊接。本发明不需要移动或转动玻璃管即可实现对玻璃管的激光横向焊接，能够很好地控制焊接精度，提升焊接效率。

Vacuum glass and preparation process therefor

Disclosed are vacuum glass and a preparation process therefor. The vacuum glass comprises: a glass body, a cavity enclosed by the glass body and a sealant, and a getter located inside the cavity. The cavity is air-tight. The getter is a non-evaporable getter and the vacuum glass contains no envelop for enveloping the getter, the material of the envelop is an air impermeable material. In the direction through the cavity, the value K of the thermal conductivity of the vacuum glass is less than or equal to 4 W/(m2·K). The vacuum glass contains no envelop for enveloping the getter.

Vacuum glass and method of its production

FIELD: glass industry.SUBSTANCE: invention relates to glass, particularly, to vacuum glass and method of its production. Method of making vacuum glass, comprising the following steps: i) closing the cavity with a glass body and a seal and arranging the getter in said cavity; ii) heating the product of step i) in a vacuum medium, thereby creating a vacuum in said cavity, welding said seal and said glass body and activating said getter; iii) cooling the product of step ii), and then obtaining a vacuum glass. At step ii) temperature increase rate decreases, or temperature increase stops, as soon as bubbles start forming in compactor.EFFECT: technical result is production of vacuum glass with high degree of vacuum.15 cl, 14 dwg, 7 tbl

Device and method for producing vacuum tubes

The invention proposes a device and a method for producing vacuum tubes for solar thermal installations. The device is equipped with a vacuum chamber (4), with a transportation device (6), with a rotatably mounted outer tube holding device (10, 10a, 110) which engages around the outside of and fixes an outer tube (2) in the final position, wherein the outer tube holding device (10) is mounted so as to be rotatable, with a rotatably mounted inner tube holding device (20) which holds the inner tube in its final position, with a rotation device (30, 40, 130) which drives the outer tube holding device (10, 10a, 110) and/or the inner tube holding device (20) for rotation about an axis of rotation (33, 133), and with at least one laser (70, 80), the laser beam of which is directed toward the open end of the outer tube (2) and the open end of the inner tube (3) in the final position and which fuses the material of the outer tube (2) and of the inner tube (3) at the open ends thereof and connects said outer tube and inner tube to one another.

Method for manufacturing fiber for light communication