Glass manufacturing inventions 06/06

20060137398 - High refractive index homogeneity fused silica glass and method of making same: Disclosed are high purity synthetic silica glass material having a high OH concentration homogeneity in a plane perpendicular to the optical axis, and process of making the same. The glass has high refractive index homogeneity. The glass can have high internal transmission of at least 99.65%/cm at 193 nm. The...

20060137397 - High transmission synthetic silica glass and method of making same: Disclosed are high purity synthetic silica material having an internal transmission at 193 nm of at least 99.65%/cm and method of preparing such material. The material is also featured by a high compositional homogeneity in a plane transverse to the intended optical axis. The soot-to-glass process for making the material...

20060137399 - Synthetic silica having low polarization-induced birefringence, method of making same and lithographic device comprising same: Disclosed are synthetic silica glass having a low polarization-induced birefringence, process for making the glass and lithography system comprising optical element made of the glass. The silica glass has a polarization-induced birefringence measured at 633 nm of less than about 0.1 nm/cm when subjected to excimer laser pulses at about...

20060137400 - Process for treating synthetic silica powder and synthetic silica powder treated thereof: A process for producing a synthetic quartz glass powder which is substantially free of carbon contaminant, for reduced bubble density and improved stability of articles made from the synthetic quartz glass during fusion molding by maintaining the synthetic silica powder in an oxidizing environment, e.g., an atmosphere comprising at least...

20060137401 - Quartz glass cylinder for production of an optical component and method for production therof: The aim of the invention is to improve a known quartz glass cylinder for the production of an optical component, comprising an inner drilling, which is mechanically machined to size and provided with an etched structure by means of an etching treatment, subsequent to the mechanical machining, such that in...

20060137402 - Heating device comprising an electrode for the conductive heating of melts: A heating apparatus for the conductive heating of melts, in particular for the rapid melting-down, refining and/or conditioning of melts, is provided. The heating apparatus includes at least one electrode, as well as a first cooling system with a cooling power, which can be set and/or controlled variably....

20060137403 - High energy fiber terminations and methods: Fiber optic end faces produced by laser ablation, as opposed to “cleave” or mechanical polish, offer advantages in some severe environment applications such as laser surgery and delivery of extremely high energy density. The “laser polished” fiber faces are more resistant to physical damage as well as less prone to...

20060137404 - Method for manufacturing glass rod: A method for manufacturing a glass rod includes introducing a glass source material gas, an inert gas, a flammable gas, and a combustion assisting gas to a multi-tube burner, where the multi-tube burner includes a first multi-tube, a plurality of nozzles provided surrounding the first multi-tube about a central axis...

20060130522 - Mold for molding optical glass and method of manufacturing optical glass element: A substrate protective film composed of chromium metal is formed on a molding surface of a mold base material composed of cemented carbide. The substrate protective film is oxidized by heat-treatment or ion implantation, so that a surface protective film composed of chromium oxide is formed. A pair of molds...

20060130523 - Method of making a glass envelope: The coefficient of absorption of a pre-selected region of a glass sheet is preferentially increased. The glass sheet may thereafter be sealed to a substrate using a sealing laser. In one embodiment, the coefficient of absorption sheet is increased by irradiating the glass sheet at a wavelength of about 248...

20060130524 - Method and apparatus for making optical fibres: Method and apparatus for producing glass products of predetermined shape. In the method, a perform is introduced into a furnace and heated to a temperature above the softening point of the glass. The heated portion is subjected to tensile forces and drawn from the furnace through an outlet opening. During...

20060130525 - Device and process for producing a glass tube: The device comprises a shaft (9) into which a glass melt is introduced, so that the outer profile of the glass tube (1) is determined at least in sections by the shaft, and a shaping means (10), which extends coaxially in the interior of the shaft, for determining the inner...

20060130526 - Apparatus for bending glass panels: The invention relates to an apparatus for bending glass panels. An upper tier of successive mould carriages defines a number of heating compartments, the last one constituting an actual bending compartment. A lower tier of successive mould carriages defines a number of cooling compartments, which are located underneath the heating...

20060130527 - Method of fabricating mold for glass press: A method of fabricating a mold for glass press, characterized in that silicon carbide is deposited on the surface of a silicon mold, subsequently the deposited silicon carbide is bonded to a silicon carbide substrate, and thereafter the silicon mold is removed by etching. In this method of fabricating a...

20060130528 - Method of making a hole assisted fiber device and fiber preform: A method of fabricating a hole assisted fiber includes forming one or more slots in the perimeter of the cladding region. A tube is overcollapsed around the perimeter of the cladding region to form one or more channels, where the one or more channels bounded on one side by the...

20060130530 - Method of doping silica glass with an alkali metal, and optical fiber precursor formed therefrom: A method of making an optical fiber precursor includes generating vapors from an alkali metal source comprising compound containing oxygen and one or more alkali metals and applying the vapors to a surface of a glass article comprising silica at a temperature that promotes diffusion of the alkali metal into...

20060130529 - Methods and apparatus for processing soot articles: A method for processing a silica-containing soot article includes exposing a silica-containing soot article to a removal gas including bromine such that the removal gas removes chlorine from the soot article....

20060130531 - Deposition burner for optical fiber preform: A deposition burner for an optical fiber preform includes: a first body including a plurality of injection tubes for fusing and emitting raw materials; a second body assembled with the first body in a shape to envelope the outer surface of the first body; a moving member disposed in a...

20060123847 - Method and apparatus for bending glass sheets: For bending a glass sheet so that the glass sheet has a compound curvature, an apparatus comprises a furnace including hearth beds on a bed support and a quenching unit provided with upper and lower air blowers. The final hearth bed may have a top surface with a simple curvature,...

20060123848 - Method for observing a glass and controlling heating effect in a hardening oven for a glass sheet: A method to observe glass (1) and to regulate the heating effect of heating elements (5) in a sheet glass hardening furnace, which furnace comprises a glass heating sector, a transportation rail (3) to transport glass (1) to and from the said heating section and said heating elements (5) to...

20060123849 - Method for the production of a ceramic fiber with a metal coating: A method for producing a reinforcing ceramic fiber with a metal coating. The metal coating is converted to an exterior shape having a polygonal cross section permits a structure of reinforcing fibers to be arranged side-by-side and above one another without leaving any cavities. When the polygonal-shaped fibers are arranged...

20060123850 - Tool-holder device for cooperating with glass: A tool holder device supporting at least one tool configured to collaborate with at least one substrate positioned on edge. The tool holder device makes the tool move translationally and rotationally relative to the substrate, it being possible for the substrate to be moved translationally relative to the tool as...

20060123851 - Method of producing a glass preform: In a glass preform (10) to be subjected to fiber-drawing, use is made of a cylindrical glass tube (21) whose one end in an axial direction is sealed. A plurality of glass capillaries (22) extend in the glass tube in the axial direction. The glass capillaries are fused to one...

20060112728 - Producing method of drawn glass member, producing method for spacer for image display apparatus and producing method for image display apparatus: A producing method of a drawn glass member by continuously drawing, under cooling, an end of a glass base material softened by heating, wherein the drawing is performed while keeping constant a drawing length, thereby suppressing a distortion or a buckling in the drawn glass resulting from an unevenness in...

20060112729 - Screen printing process: A method of screen printing and laser ablating various types of substrates is disclosed. The process may be used to make decorated auto glass with additional indicia such as serial numbers, bar codes, and the like. The substrate with the applied coating may subsequently be shape formed and/or heat strengthened...

20060112730 - Core insert for a glass molding machine, and an apparatus for making the same: A core insert (1) for glass molding machine includes a substrate (10) and a plurality of complex films (12) deposited on a surface of the substrate (10). Each complex film (12) is composed of a noble metal layer (120), an insulating metal oxide layer (122), and a hard film (124)....

20060112731 - Optical lens molding apparatus: An optical lens molding apparatus comprising a first mold core, a second mold core, two internal sleeves and an external sleeve is provided. The first and the second mold core have a first coefficient of thermal expansion. The two internal sleeves are co-axially assembled with the first mold core and...

20060112732 - Method and apparatus for heating porous preform: A method for heating a porous preform according to the present invention comprises the steps of accommodating the porous preform in a muffle tube, forming a high temperature zone on a portion of a moving path of the muffle tube, using a heater and moving the muffle tube along the...

20060112733 - Equipment and method for manufacturing a glass preform: Provide are safe equipment and method, in which gas leakage through junction part between a furnace muffle tube and a lid can be restrained, for manufacturing a high quality glass preform. The equipment for manufacturing a glass preform comprises (1) a furnace muffle tube in which a soot glass deposit...

20060112734 - Modified chemical vapor deposition device for manufacturing optical fiber preform: A modified chemical vapor deposition (MCVD) device for making an optical fiber preform is disclosed. The MCVD device includes a quartz tube and its junctions, a bubbler system for generating reaction gas to be supplied to the quartz tube, and a rotary connector for interfacing the bubbler system to a...