Matches 101 - 150 out of 348 < 1 2 3 4 5 6 7 >
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5000774 Method of masked two stage lithium niobate proton exchange  
Lithium niobate is Li + /H + proton exchange in two stages. The first masked stage is a treatment with benzoic acid followed by a thermal treatment in oxygen at about 400° C. The thermal...
4986841 Method of preparing an alkali metal diffusion preventive layer  
The present invention concerns a method of preparing an alkali metal diffusion-preventive layer by applying one of three specific methods in a method of forming an alkali metal diffusion-preventive...
4983197 Method for producing waveguides in a glass substrate by ion exchange  
A method for producing waveguides in a glass substrate by ion exchange comprises the method steps of: (a) applying a metal mask (44) on the glass substrate (42), this metal mask (44) leaving open...
4979970 Method of manufacturing integrated optical component  
An integrated optical component with ion diffused optical circuit paths in glass connected to optical fibers, comprising a transverse exit groove machined adjacent the paths, a plateau for...
4969943 Method of making porous ceramic fluoride  
A process for making a porous ceramic composite where fumed silica particles are coated with a nitrate, preferably aluminum nitrate. Next the nitrate is converted to an oxide and formed into a...
4963177 Method for making a grating assisted optical waveguide device  
The present disclosure makes a grating assisted optical waveguide device. The method includes cleaning a substrate made of glass by means of cleaning agents; depositing a first layer made of metal...
4952037 Plate microlens and method for manufacturing the same  
In a plate microlens of the invention wherein gradient index lenses each having an optical axis along a normal to a surface of a transparent base and a refractive index profile gradually changing...
4952225 Method of making an internally-doped tube of transparent glass, in particular for manufacturing rare-earth-doped optical fibers  
A mist is formed by an ultrasonic generator (5) from a liquid solution containing a dopant, and the mist is inserted into the tube blank to be doped (4) by means of a flexible pipe (2) in order to...
4948760 Water repellant inorganic glass  
An inorganic glass having high water repellence produced by irradiating and/or implanting ions upon or into a surface of the inorganic glass, the ions are those of at least one element selected...
4923496 Method of fabricating fluoride-glass integrated optical waveguides  
Integrated optical guides are fabricated on fluoride glass plates by expog such plates to an atmosphere of a gaseous halogen other than fluorine, or of a compound capable of generating such a...
4913717 Method for fabricating buried waveguides  
A method for fabricating buried waveguides on a glass substrate which contains sodium ions includes the steps of masking the substrate, performing a field-assisted ion-exchange process at low...
4911743 Glass structure strengthening by etching  
A method of producing a superior quality of glass or other brittle material. The resulting end product is substantially stronger than conventional glass and exhibits greater strength consistency...
4902307 Synthesis of SiO.sub.2 membrane on porous support and method of use of same  
A method for lining a porous tube (5) with a film (11) of SiO 2 is described. The treated tube may be used to separate hydrogen from reaction mixtures such as those resulting from the water-gas...
4902330 Method of producing gradient-index lens  
A method of producing a gradient-index lens includes a first step in which a glass body is immersed into a molten salt containing ions which are able to provide a refractive index higher than that...
4886538 Process for tapering waveguides  
A process for forming a channel waveguide in which the channel geometry and the channel index of refraction vary oppositely along the channel length to keep the modal characteristic of the channel...
4883523 Avoidance of surface deterioration of glass during strengthening processes  
Processes in which glass parts are strengthened by ion exchange with cations in a molten salt bath are improved by removal of the small amounts of moisture and other forms of the hydroxyl group...
4874414 Ion exchange processing method of glass  
The essential surface of the glass body to undergo the ion exchange processing is coated with the porous layer, which is formed by drying and sintering inorganic fluid, containing clay for more...
4867371 Fabrication of optical devices  
A relatively large scale low cost method of fabricating optical devices with associated coupling lenses comprises the following steps: (a) producing in one surface of a substrate (1) of suitable...
4859636 Chemically strengthened glass article formed of float glass  
The invention relates to a method of strengthening a glass article formed of sheet glass produced by the float process. The strengthening method includes a known ion exchange treatment to replace...
4851023 Method for manufacturing aluminosilicate optical glass  
Aluminosilicate optical glass without boron oxide, comprising 60-95 mols % silica and at least 2 mols alumina, the remainder being made up of at least one oxide of a metal selected from silver and...
4851024 Process for producing optical glass  
A uniform refractive index-type glass is prepared by ion exchange in which a glass containing ions of a first type is immersed in a molten salt containing ions of a second type, the ions in the...
4849002 Ion-exchangeable germanate method for strengthened germanate glass articles  
Ion exchangeable glass compositions containing from 50 to 90 mole percent GeO 2 , from 5 to 30 mole percent Al 2 O 3 , from 3 to 30 mole percent Li 2 O, up to 30 mole percent Na 2 O and up to 30...
4844724 Method of adjusting refractive index distribution lenses  
The refractive index distribution in refractive index distribution lenses may be adjusted to better approach an ideal by heating the refractive index distribution lens. When the refractive index...
4842629 Method for producing buried regions of raised refractive index in a glass member by ion exchange  
An improvement for a method of producing buried regions of raised refractive index in a glass member by ion exchange characterized by removing a titanium mask from the glass member after a first...
4824458 Deionization of glass by corona discharge  
The invention relates to techniques for surface deionization of glass under the effect of a corona discharge. The invention consists of treating the object which is movable in relation to the...
4812153 Method of making a glass body having a graded refractive index profile  
A glass body having a graded (substantially Gaussian) index profile is produced by a process that comprises providing a doped porous body (e.g., having a uniform dopant distribution), heat treating...
4803106 Disc-shaped carrier body for a recording medium and method for manufacturing same  
A disc-shaped nonmagnetic support body for a recording medium which can be magnetized particularly (vertically) has at least one flat side with a very smooth surface, on which at least one...
4786391 Arrangement for holding a glass member  
An arrangement for mounting a glass member for a field-assisted ion exchange utilizing anodic and cathodic contacting by molten salts characterized by the glass member being arranged between two...
4781743 Method of improving waveguide uniformity in optical substrate and product  
A method of improving device performance of optical devices formed in optical substrates is disclosed. The method requires that the optical substrate material, for example, lithium niobate, be...
4767435 Process for producing transparent glass product having refractive index gradient  
A process for producing a transparent glass product having a refractive index gradient by the molecular stuffing method is described. A thallium compound is used as a dopant and, after a...
4765702 Glass integrated optical component  
An integrated optical component including a monolithic glass body having a surface in which at least one cavity is molded. An optical circuit path, which is formed in the surface by ion exchange,...
4759787 Method of purifying molten silica  
An improved quality vitreous silica boby and/or improved quality product made at high temperature in a vitreous silica vessel is/are obtained by applying a polarizing potential across the boundary...
4756733 Method and composition for creating gradient-index glass  
Disclosed is an ion exchange process and composition useful therein for creating a gradient-index profile in a glass structure which uses a monovalent metal salt bath modified by the addition of a...
4732599 Method for manufacture of optical devices  
A method of fabricating optical sensing devices for detecting displacement of a part thereof comprising the steps of bonding a multiplicity of optical devices to one surface of a relatively large...
4711514 Product of and process for forming tapered waveguides  
A method of forming a tapered optical waveguide within a substrate (2). An appropriate substrate (2) is coated with a layer of barrier material (4) such as silicon dioxide which provides a...
4670033 Method of consolidating fine pores of porous glass  
A method of consolidating fine pores of a porous glass by impregnating the fine pores with an energy decomposable compound exemplified by SiH 4 . Energy is applied to the decomposable compound...
4668719 Insulating protective material  
This invention provides an insulating protective material effective for protection of electronic and electric devices such as electronics elements. This insulating protective material contains at...
4613351 Solid material having special electrical properties and a method for its preparation  
The invention comprises a solid material that is an electrical conductor in a single direction which comprises an amorphous glass matrix containing a plurality of microscopically thin metal...
4563205 Process for the production of slab-shaped lens having gradient of refractive index in thickness direction only  
A process for the production of a slab-shaped lens having a gradient of refractive index only in the direction of thickness thereof is described, comprising stuffing a solution of dopant into...
4529657 Method for lowering the surface energy of glass  
The surface energy of a glass article is reduced by adsorbing multivalent cations such as chromium onto a glass surface, then treating the surface with an aqueous solution of an alkali metal...
4528011 Immobilization of radwastes in glass containers and products formed thereby  
This invention relates to the immobilization of toxic materials, e.g., radioactive materials, in glass for extremely long periods of time. Toxic materials, such as radioactive wastes, which may be...
4518222 Optical device and method  
There is disclosed an improved optical device of the type disclosed in application Ser. No. 520,456 and embodying an array of lenses integral with and raised above a crystalline matrix. The...
4515612 Method for optical fiber fabrication including deuterium/hydrogen exchange  
A method for manufacturing silica-based optical fiber, and for manufacturing optical fiber preforms, the method comprising deuterium/hydrogen exchange in the silica-based material carried out...
4510344 Thin film solar cell substrate  
An improved low cost photovoltaic cell including a sodium containing glass substrate which has been chemically treated to remove sodium ions from a surface selected for deposition of a transparent...
4472030 Cesium-containing optical glass  
A cesium-containing optical glass comprising, by weight, 32-56% of SiO 2 , 6-25% of K 2 O, 6-32% of Cs 2 O, 0-30% of BaO, 0-2.5% of MgO, 5-34% of ZnO, 0-3% of ZrO 2 and 0-5% of SnO 2 , provided...
4472185 Method of producing a cellular ceramic body  
There is disclosed a method of producing a cellular ceramic body of high mechanical strength and exhibiting a density less than 15 lbs/ft 3 . A crystal-containing gel, prepared from a selected,...
4466820 Electrolysis treatment for drawing ions out of a ceramic  
A method is provided for drawing ions out of the glassy phase of a ceramic in order to improve its high temperature strength and to reduce its dielectric loss. The ceramic is heated to a high...
4455160 Transparent glass-ceramics especially suitable for use as stove windows  
This invention is directed to a method for making transparent glass-ceramic articles containing β-quartz solid solution as the predominant crystal phase that are resistant to attack by the fumes...
4442175 Cellular ceramic bodies and method making same  
Cellular ceramic bodies are produced by frothing a crystal-containing, ion-exchanged gel and setting the gel. An aqueous gel is prepared from a water-swelling mica and is blended in conjunction...
4441905 Method of forming ceramic bodies  
A method is disclosed for producing low density, ceramic bodies in the nature of hollow or solid beads which may be used as such or bonded into a unitary mass. The bodies are composed of...
Matches 101 - 150 out of 348 < 1 2 3 4 5 6 7 >