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6434976 |
Method for manufacturing glass product
A manufacturing method for a glass product not having a rotatively symmetric body like an optical fiber fixing member but having a fine structure as of optical fiber engagement portions, to...
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6420288 |
Process for the preparation of shaped translucent lithium disilicate glass ceramic products
A process is described for the preparation of shaped translucent lithium disilicate glass ceramic products which are characterized by high strength and good chemical stability and may be processed...
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6415631 |
Method and apparatus for making an article from a formable material
A method and apparatus are described for making an article such as the body of a needleless injector capsule, from a formable material, such as glass, the article having a cavity communicating with...
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6408649 |
Method for the rapid thermal treatment of glass and glass-like materials using microwave radiation
A method of thermally treating a glass or glass-like material, preferably a glass sheet, without the use of conventional tunnel-type furnaces, to effect rapid heating of glass and glass-like...
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6397634 |
Bend-shaping method and apparatus for a glass plate
A plurality of rollers provided at positions where a transferred glass plate is moved vertically to form a transferring plane formed by the primary rollers into a curved plane, and the curved plane...
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6385998 |
Method of manufacturing glass spacers
A method of manufacturing glass spacers is provided which can enhance the degree of similarity in cross section between the mother glass and the drawn glass when manufacturing glass spacers by hot...
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6385997 |
Method for forming a tool for molding microlens arrays
A method for fabricating a mold tool for molding optical elements is taught which comprises heating a mold tool blank made from a vitreous material to a temperature above the glass transition...
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6379777 |
Die and production method thereof, glass substrate and production method thereof and method of forming pattern on the glass substrate
On the pressing surface of a die, a first protrusion having a substantially triangular cross section and a second protrusion having a length which is greater than a width thereof and a...
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6372327 |
Method and apparatus for manufacturing patterned glass products which simulate glue chipped glass
A method and apparatus for manufacturing patterned glass sheets. In certain embodiments, the resulting glass sheets have a pattern defined therein which is designed so as to simulate conventional...
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6370916 |
Flare manufacturing method
It is an object of the present invention to reduce variations in dimensional accuracy such as the outer-diameter accuracy and roundness of a flare shape and the concentricity between the bulb...
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6363753 |
Curved glass manufacturing apparatus with improved bending and conveyor units
A roll-forming unit of a curved glass manufacturing apparatus includes a cooperating pair of upper and lower forming roll mechanisms. Each mechanism includes a forming roll having a resilient rod...
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6363747 |
Glass mold material for precision glass molding
A method for making working mold tools for use in a compression molding process for molding optical glass elements from high temperature glasses having T g 's in the range of from about 400° C. to...
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6357263 |
Method for bending a glass sheet, a ring mold for bending a glass sheet, and apparatus using the ring mold
In bending a glass sheet, the load applied to an intermediate glass sheet can be equalized to improve the quality of a final glass sheet. For this purpose, a forming ring 1 comprises a first...
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6343489 |
Bending rail band guide
A variable radius bending apparatus is disclosed for bending a glass plate. The variable radius bending apparatus includes a bending rail having a longitudinal rail member and a drive drum and a...
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6334973 |
Method of producing molded article
A molded article having a highly accurate outer form accuracy, including various optical products, is produced from a preform having a simple form by a press-molding, in which a fine pattern can be...
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6334335 |
Method of manufacturing a glass optical element
A method for forming a glass optical element by press forming a thermally softened glass material with a preheated forming mold composed of an upper and a lower die. The glass material, the upper...
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6324332 |
Optical fiber fixing member, method of manufacturing the optical fiber fixing member, optical fiber array, and method of manufacturing the optical fiber array
An optical fiber fixing member having optical fiber engagement grooves 2 and peaks 5 between the engagement grooves 2 is configured as a unitary structure by molding. A preform G is pressed with a...
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6321020 |
Glass substrate and two-stage molding method therefor
There is provided a glass substrate having a V-groove portion for arranging an optical fiber core and a countersunk portion for containing an optical fiber coated portion, formed on the extension...
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6318125 |
Method and device for bending glass sheets
A process for shaping glass sheets with a surface-shaping mould, against which the glass sheets are pressed using a pressure drop produced by sucking out the air from the space lying between the...
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6305194 |
Mold and compression molding method for microlens arrays
A method and apparatus is disclosed for compression molding arrays optical elements which may be later singulated. The apparatus includes first and second mold halves with the second mold half...
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6279347 |
Method and apparatus for producing bent glass sheet
This invention provides a method and an apparatus for producing a bent glass sheet. A heated glass sheet (4, 24, 24*) conveyed from a heating furnace (1, 21) is bent by pressing with at least one...
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6279346 |
Method for reducing hot sticking in molding processes
The method of the present invention overcomes the hot-sticking problems between an inorganic non-metallic material (=insulator) to be molded and a forming die by maintaining an assembly comprising...
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6230520 |
Process for preparation of glass optical elements
A method disclosed can mold glass optical elements having a good surface precision with a relatively short cycle time even where glass optical elements are manufactured in largely transforming a...
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6224662 |
Use of novel glass compositions in preparing dental glass pillars and support pillars, and method for producing the glass pillars
The present invention relates to the use of novel glass compositions in preparing dental glass pillars and support pillars, and method for producing the glass pillars. The glass material comprises...
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6209354 |
Method of preparing silica glass article
A method of preparing a high purity massive synthetic silica glass article. The method includes a homogenizing step, wherein a rod shaped synthetic silica glass material has a greater optical...
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6199404 |
Manufacturing method for gas discharge type display panel
A manufacturing method for a gas discharge type display panel makes it possible to manufacture an environmentally friendly substrate with high accuracy and yet at low cost. According to the...
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6167727 |
Process for the production of polarizing glass
A process for producing a polarizing glass containing shape-anisotropic metallic particles dispersed in an oriented state therein, which comprises drawing a glass preform containing metallic halide...
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6138476 |
Method of producing an optical fiber coupling member
The present invention provides a connecting member for facilitating connecting of optical fibers, and a connecting method in which the loss due to connecting is small. An optical fiber connecting...
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6118590 |
Small-type imaging optical system
A lens element is disclosed which satisfies the following three conditions TBL ______________________________________ │Δh/R│ ≥ 0.1 . . . Condition (1) Φ ≤ 8 mm . . . Condition (2) ...
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6105395 |
Manufacturing method for glass molded products
In a method for molding glass products having a fine structure as of an optical fiber holder with a high size precision, a mold used for the molding has the fine structure in a size such that a...
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6099765 |
Optical component formation method
A method of forming an optical component wherein imperfections in molding the optical component, such as a lens, are removed by: heating an optical material to its plastic state; forming the...
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6079228 |
Forming method of glass element
A method of molding a glass element in which a glass material is heated and then press-molded between an upper mold and a lower mold when a temperature of the heated glass material reaches a...
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6070436 |
Manufacturing method for molded glass articles
Disclosed is a manufacturing method for molded glass articles including glass optical elements such as high precision lenses not requiring grinding and polishing after press molding. The...
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6053011 |
Process and plant for hardening glass plates
A system for tempering glass plates has preheating zone (1) in which several glass plates (7) stacked vertically in compartmented car (6) are heated together to a temperature below the tempering...
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6003338 |
Molding method for optical element
A molding method for optical element is disclosed in which a glass material prepared for weight is introduced into a mold and then heated to soften, and subsequently pressed with the mold to mold...
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5992180 |
Method and apparatus for bend-shaping a glass plate
A glass plate is heated in a heating furnace and is bend-shaped to be a complexly curved glass plate while the glass plate is passed on curved rollers wherein support pads of a pushing mechanism...
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5987923 |
Process and apparatus for hot forming precision structures in flat glass
Flat glass provided with precision structures is required for precision applications, especially for glasses with optical properties, for example for modern flat display screen glass. The process...
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5987924 |
Lens mold and method of manufacturing a lens
A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective...
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5974833 |
Heat transfer method in glass sheet bending oven and a bending oven
A heat transfer method in a glass bending furnace, which has a top array of of successive heating sections (2) and under it a bottom array of successive cooling sections (3), and in which method...
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5976425 |
Optical device molding apparatus and method, and optical device
Lens surfaces are transferred by press-molding a glass material (16) by an upper mold (1) and a lower mold (2). After the lens surfaces are transferred, the outer circumferential portions of the...
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5967871 |
Method for making back glass substrate for plasma display panel
A method and apparatus (50, 70, 90) for making a back glass substrate (24) for a plasma display panel (20) by forming hot sheet glass G heated above its annealing point and embodied either as a...
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5951732 |
Method of glass forming
A method of forming glass uses the steps of forming base glass from layered stacks of colored glass; V-Grooving a plurality of base glass layers; stacking the grooved layers; heating and...
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5948129 |
Method for preparing a molded glass material for use in the manufacture of living tissue replacement
A living tissue replacement of crystallized glass having bioaffinity and mechanical strength is briefly obtained simply by pressure molding or machining without using a special equipment. A glass...
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5938807 |
Method for manufacturing press-molded glass object and apparatus therefor
In press molding, a shaft (metal mold 13) is moved by positional or torque control to cause upper and lower molds to reach a set position slightly before a position where the upper and lower molds...
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5904747 |
Method of molding optical articles
A method for press molding preforms to obtain optical articles in which each preform is prepared beforehand to have a diameter larger than that of an optically functional area of the optical...
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5885315 |
Method for forming glass sheets
A glass ceramic or glass-ceramic sheet is formed by progressively reducing the thickness of the sheet by passing the sheet between successive pairs of counterrotating rollers. The average viscosity...
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5858051 |
Method of manufacturing optical waveguide
A method of manufacturing an optical waveguide comprises a first step of laminating, on one major surface of a first glass material, a second glass material to a desired thickness, the second glass...
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5851252 |
Method of forming mold release film and making a glass optical element
In a method of forming a mold release film on the surface of a glass blank from which an optical element is made by press molding, a carbon film having a thickness of less than 50 angstroms or,...
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5851255 |
Method for manufacturing lens with lens barrel
A method for manufacturing a lens with a lens barrel having a stopper by forming a uniform optical function coating on both lens surfaces. The method includes the steps of forming a first optical...
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5843200 |
Product and process for molding glass lenses
A glass preform, including a core glass adversely affected by interaction with a molding tool, is provided with a thin surface layer of glass components that are inert to the tool and have an index...
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