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7611648 |
Method for forming an optical element
The invention relates to a process for forming an optical element. A forming tool is used having a plurality of molding or hot-embossing portions formed on a surface thereof for molding or...
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7510989 |
Ultra-low noble metal doped polarizing glass and process
The invention is directed to a silver-containing polarizing boroaluminosilicate glass composition that has been doped with a noble metal selected from the group consisting of Pt, Pd, Os, Ir, Rh and...
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7451620 |
Optical glass and optical product using the same
An optical glass having a high refractive index and high dispersion characteristics that is suited to application to precision press molding to precisely mold the shape of final products for...
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7415843 |
Apparatus and method for producing a glass optical element and glass optical element produced thereby
In a method of manufacturing a glass optical element by press-forming a glass material in a chamber by using a forming mold comprising upper and lower dies at least one of which is movable, where a...
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7415842 |
Optical glass element and manufacturing method thereof
The present invention relates to a manufacturing method for an optical glass element, in which molten glass 9 is pressed between a lower mold 1 and an upper mold 8 , and the pressing process...
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7383697 |
Optical element molding method
A method for molding an optical element by pressing a glass material in a mold, the method having the steps of: heating to soften the glass material outside a cavity of the mold; heating the mold;...
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7373792 |
Method for producing optical components
For producing large volume optical components of high optical quality from synthetic quartz glass blanks, the latter are heated in a component mold in a furnace with a protective gas atmosphere to...
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7353666 |
Method for press molding a glass optical element
A molding apparatus for molding a press-molded product by heating and softening a material and press-molding the material into a predetermined shape by the use of a mold, includes a pair of dies...
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7322215 |
Method for blank pressing of optical components
Methods for press molding a glass body, especially for optical applications, without additional grinding and polishing steps are described. One method is performed with a press mold having an upper...
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7313930 |
Method and apparatus for manufacturing glass substrate for storage medium
A method of manufacturing a glass substrate for a storage medium by pressing a glass material between an upper and a lower dies. The method includes a heating step of heating the glass material...
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7309670 |
Optical glass; press-molding preform and method of manufacturing same; and optical element and method of manufacturing same
The present invention relates to optical glass having a high refractive index, high dispersion, and a low glass transition temperature; a preform comprised of the optical glass for precision...
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7305854 |
Methods for producing substrate blank
A method for producing a thin-plate-shaped substrate blank that is an intermediate for a glass substrate, in which the occurrence of undulation is prevented and the substrate blank is produced with...
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7293430 |
Press molding apparatus and press molding method of optical element
A press molding apparatus includes upper and lower molding dies each having a molding surface facing each other, and a driving device which moves at least one of the upper and lower molding dies in...
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7275397 |
Method of molding a silica article
Disclosed are high temperature free-flow mold for the production of near net-shape silica articles and method for the production of near net-shape silica articles. The mold is preferably made of...
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7155936 |
Doped silica glass articles and methods of forming doped silica glass boules and articles
The present invention provides doped titania-doped silica glass articles having low thermal expansions and low variations in thermal expansion. According to one embodiment of the invention, a...
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7140205 |
Method of manufacturing glass optical elements
Disclosed is a method of manufacturing ultraprecise lenses, including aspherical lenses, not requiring grinding or polishing after press molding. The method comprises heating a glass material to a...
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7134298 |
Method of press-forming glass
An object of the present invention is to provide a press-forming method for glass capable of uniformly heating press dies and a preform and preventing oxidation of the press dies. According to the...
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7122242 |
Wedge shaped glass and methods of forming wedged glass
A glass sheet includes a first edge, an opposing, second edge, and an intermediate location between the first edge and second edge. The glass sheet has a first portion extending between the first...
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7121119 |
Press molding apparatus for an optical element and method of manufacturing the optical element
A transfer arm holds a plurality of preforms arranged in a single line and simultaneously drops and supplies the preforms downward. A positioning arm has a pair of arm split members split in its...
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7007513 |
Method of manufacturing glass parts for connection of optical fibers, method of manufacturing mother glass to produce glass parts, and glass parts for connection of optical fibers
A method of manufacturing glass parts for connection of glass fibers is provided, which can improve the accuracy of the cross-sectional size of a through hole in the glass part. A mother glass...
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7007512 |
Method for machining glass substrate
In the present invention, a surface 7 of a glass substrate 1 is irradiated with a laser beam 2 to thereby form a V-shaped groove 6. At that time, the laser beam 2 is condensed outside and...
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6997019 |
Molding process of disk with shaft shaped portion
A press die and a molding process can form a disk member having a shaft shaped portion at a center with satisfactory circularity and flatness in a disk portion, dimensional precision in the shaft...
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6990835 |
Process for partial shaping of flat glass or glass-ceramic articles and apparatus for performing same
In the process for partially shaping, a glass/glass ceramic article ( 5 ) is held on a planar support plate ( 1 ) by suction. The glass/glass ceramic article is heated to soften it, so that it has...
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6928838 |
Apparatus and method for forming silica glass elements
The forming apparatus has top and bottom die assemblies which form a heated silica glass material by press forming. These top and bottom die assemblies include, respectively, mold dies, which are...
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6918267 |
Press molding apparatus and press molding method
A press molding apparatus includes upper and lower mother molds 102 and 104 . Each of the mother molds 102 and 104 has four molding surfaces arranged in a single line and satisfies the...
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6912087 |
Ultra-thin glass polarizers and method of making same
A method for making a polarizing glass article is provided. The method includes first providing a precursor glass containing metal-halide particles. The precursor glass may be encased in a...
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6908674 |
Jadeite and its production
A jadeite material has a thickness in excess of about 1.0 mm and CIELAB indices of L*>42, a*<−6, and b*>+6. The grain size of the jadeite material is less than about 30 microns and is an...
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6877343 |
Method of manufacturing a glass substrate and a magnetic recording medium
In a magnetic recording medium, surface roughness of a glass substrate and the variation of the surface roughness are suppressed to the predetermined range. Namely, the surface roughness (Rmax, Ra,...
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6826928 |
Methods for positioning and bonding elements in substrates
Devices and techniques for placing and bonding identical elements to holes in a substrate where spacer balls and a reference surface are used to achieve the desired accuracy.
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6823695 |
Press-forming system for glass
An object of the present invention is to enable to use a common transfer machine for transferring performs to and for transferring products from a press-forming system for glass having a plurality...
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6823694 |
Method of manufacturing glass optical elements
A method for manufacturing a glass optical element having at least one concave surface, including: softening a glass molding material by heating, molding the softened material with a first mold...
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6813904 |
Differential pressure process for fabricating a flat-panel display faceplate with integral spacer support structures
A process for fabricating a faceplate for a flat-panel display such as a field emission cathode type display is disclosed, the faceplate having integral spacer support structures. Also disclosed is...
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6810686 |
Process for manufacturing glass optical elements
Disclosed are processes for manufacturing glass optical elements by press molding a heated and softened glass material in preheated molds. In the process, the glass material is heated while it is...
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6766660 |
Molding die and manufacturing method of molded product
A molding die has a shell having a penetration hole, a lower pattern installed in the lower opening of the shell, and an upper pattern slidably disposed from the upper opening of the shell. The...
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6761046 |
Cold rolling of glass preforms
A method and apparatus for making cylindrical glass preforms with convex, optical quality convex end surfaces is taught. A glass ball preform is placed on a heated lower platen. The temperature of...
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6749926 |
Curved glass sheet for vehicle window
Glass sheet, accurately curved in two directions and having a compound curved surface, provides a non-cylindrical, non-spherical, smooth, continuous reflection image. When it is used as a door...
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6725689 |
Method for bend-shaping a glass sheet
An apparatus for bend-shaping a glass sheet is disclosed, which comprises a heating furnace, a plurality of in-furnace beds disposed within the heating furnace, at least one out-furnace bed...
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6668588 |
Method for molding chalcogenide glass lenses
A method for molding a chalcogenide glass lens includes providing a mold. A preformed lens of chalcogenide glass is placed within the mold. The lens has a top surface and a bottom surface. An...
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6629436 |
Apparatus for thermal treatment of glass and method and thermally treated glass therefrom
The present invention is directed to an apparatus for thermal treatment of glass and method and thermally treated glass therefrom. The apparatus is capable of supporting the glass during thermal...
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6629435 |
Method of forming an optical glass element
A method for forming an optical glass element by pressure molding a glass pre-form using top and bottom molds, has steps of heating a glass pre-form held at a position separated from the top and...
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6598427 |
Device for cooling convex glass sheets
A device for cooling bent glass sheets running along a roller conveyor. Blowing boxes are inserted between the rollers and have a surface opposite the glass sheet at a distance of less than 30 mm...
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6598426 |
Method of making a vehicle window with opaque layer
A method of making a vehicle windshield or other window. An opaque layer (e.g., enamel or water-based) is applied to a glass sheet and then “fired” or cured. The opaque layer is preferably...
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6592785 |
Device and method for molding optical components
An optical component molding device and method is disclosed. The molding device includes a heating section, a heating/pressing section, and a cooling section. A carrying member sequentially conveys...
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6560994 |
Mold used for molding glass optical elements process for preparation of glass optical elements and method for rebirth of mold
Disclosed is a mold including upper and lower molds for obtaining glass optical elements by press molding a glass molding material softened by heat, in which either one of the upper and lower molds...
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6553790 |
Process for fabricating optical fiber involving tuning of core diameter profile
A silica-based core rod is traversed by a heat source along its longitudinal axis, to provide heated, softened regions. During the traverse, compressive or tensile movements are provided along the...
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6526781 |
Method for roll forming glass sheets
A method for roll forming a heated glass sheet utilizes a forming conveyor ( 62 ) including forming rolls ( 66 ) that are pivotally moved upwardly between horizontal rolls ( 46 ) of a horizontal...
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6510709 |
Shaping mold optical fiber guide block processes for the production thereof and optical fiber array
Disclosed are a shaping mold for producing an optical fiber guide block which permits highly accurate positioning and fixing of optical fibers, an optical fiber guide block having such excellent...
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6470712 |
Method of changing the surface of a glass substrate containing silver, by using a laser beam
A laser processing method for removing glass by melting, evaporation or ablation from sheet-like glass substrate for forming microscopic concavities and convexities. Diffraction grating and planar...
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6442975 |
Method of manufacturing thin-plate glass article, method of manufacturing glass substrate for information recording medium, and method of manufacturing magnetic recording medium
There are disclosed a method of manufacturing a thin-plate glass having a good flatness with a high mass productivity and a method of manufacturing a high-quality and high-performance glass...
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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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