Entries |
Document | Title | Date |
20080202166 | METHOD OF DEHYDRATING AND SINTERING POROUS PREFORM FOR OPTICAL FIBER AND DEHYDRATION-SINTERING FURNACE - A dehydration-sintering furnace includes a muffle tube that accommodates therein the porous preform, a heater that heats the porous preform from outside of the muffle tube, a furnace body that accommodates the heater at an outer periphery of the muffle tube. When a gas required for dehydrating and sintering the porous preform is supplied in the muffle tube, and a pressure in the muffle tube is measured, an average value of the pressure in the muffle tube P | 08-28-2008 |
20080271490 | CHANNEL STRUCTURE AND PROCESS FOR PRODUCTION THEREOF - A three-dimensional (micro-) channel structure with an increased length of internal channel is provided, which can be formed without requiring a boring step for vertical hole formation. The channel structure is formed by providing a polyhedral substrate with a groove over at least two faces thereof, preferably through press molding, and covering the faces provided with the grooves with a covering member or another polyhedral substrate to form a continuous internal channel communicative with an ambience through an opening. | 11-06-2008 |
20090288450 | Optical glass, precision press-molding preform, process for producing the preform, optical element and process for producing the element - An optical glass having high refractivity and a low sag temperature and having a low-temperature softening property that enables precision press-molding is provided, and the optical glass contains, by mol %, 5 to 50% of B | 11-26-2009 |
20100000258 | HEATING PROCESS AND APPARATUS OF MOLDING GLASS - A heating process of molding a glass is provided. First, a first heat source is provided to heat up a glass preform in a mold directly and a second heat source is provided to heat up the mold directly. In the heating period using the first heat source, the glass preform is softened by heat and pressed with the mold, and in the pressing period using the mold, the glass preform is cooled down and formed as an optical lens. | 01-07-2010 |
20100206006 | MICROALIGNMENT USING LASER-SOFTENED GLASS BUMPS - Disclosed is a method for fabricating glass bump standoff structures of precise height, the method comprising providing oversized glass bumps on a glass substrate, providing a heat source to heat the bumps, positioning a substrate to be aligned on the oversized bumps, and reducing the height of the oversized bumps by a combination of manipulations comprising (1) softening the bumps by heating the bumps and (2) applying pressure to the substrate to be aligned. | 08-19-2010 |
20100206007 | METHOD FOR PRODUCING A HEADLIGHT LENS FOR A VEHICLE HEADLIGHT - The invention relates to a method for producing a headlight lens ( | 08-19-2010 |
20100307195 | DEVICE AND METHOD FOR PROCESSING SUBSTRATES HAVING LARGE SURFACE AREAS - A device for processing a usable surface extending on a usable side of a substrate ( | 12-09-2010 |
20110289970 | PREFORMS FOR PRECISION PRESS MOLDING, OPTICAL ELEMENTS, AND METHODS OF MANUFACTURING THE SAME - Preforms for precision press molding made of optical glass, optical elements, and methods of manufacturing the same are provided. The preforms are suited to precision press molding having a broad range of dispersion characteristics, a low glass transition temperature, a low sag point, and good resistance to devitrification while containing no PbO. The optical element is obtained by precision press molding the preform. One example of the preform has a refractive index (nd) of greater than or equal to 1.7 and an Abbé number (νd) of less than or equal to 32. The other example of the preform has an Abbé number (νd) exceeding 32. | 12-01-2011 |
20120090358 | METHOD FOR PRODUCING FLUOROPHOSPHATE GLASS, GLASS MATERIAL FOR PRESS MOLDING AND OPTICAL ELEMENT - In order to produce a fluorophosphate glass including P | 04-19-2012 |
20120297833 | METHOD OF MOLDING SYNTHETIC SILICA GLASS MOLDED BODY - A method of molding a synthetic silica glass molded body by accommodating a synthetic silica glass block in a mold provided with a pressing portion, and by pressing the block while heating, the method including: washing the synthetic silica glass block so that a concentration of copper which is present on the surface of the synthetic silica glass block is 2 ng/cm | 11-29-2012 |
20120324956 | PRESS MOLDING GLASS MATERIAL, MANUFACTURING METHOD THEREOF, AND MANUFACTURING METHOD OF OPTICAL ELEMENT - A press molding glass material including: a core portion composed of optical glass; and a surface layer covering the core portion, wherein the surface layer includes an outermost layer contacting with a molding surface of a molding die in press molding and an intermediate layer adjacent to the outermost layer, the outermost layer is a silicon oxide film having a surface free energy measured by a three-solution method of equal to or less than 75 mJ/m | 12-27-2012 |
20130025322 | PROCESS FOR MAKING NANOCONE STRUCTURES AND USING THE STRUCTURES TO MANUFACTURE NANOSTRUCTURED GLASS - Fabrication method. At least first and second hardmasks are deposited on a substrate, the thickness and materials of the first and second hardmask selected to provided etch selectivity with respect to the substrate. A nanoscale pattern of photoresist is created on the first hardmask and the hardmask is etched through to create the nanoscale pattern on a second hardmask. The second hardmask is etched through to create the desired taper nanocone structures in the substrate. Reactive ion etching is preferred. A glass manufacturing process using a roller imprint module is also disclosed. | 01-31-2013 |
20130098114 | OPTICAL ELEMENT MANUFACTURING METHOD AND OPTICAL ELEMENT MANUFACTURING APPARATUS - The present invention provides an optical element manufacturing method including a first step of fixing an optical material by exerting a first weight different from a self weight of an upper die on the optical material positioned in a cavity between the upper die and a lower die, a second step of thereafter heating and softening the optical material by introducing a heated gas to an inside of the cavity, and a third step of thereafter molding an optical element by exerting a second weight larger than the first weight on the optical material within the cavity. | 04-25-2013 |
20130205833 | GLASS BASE MATERIAL ELONGATING METHOD - A glass base material elongating method of elongating a glass base material to make a diameter of the glass base material smaller by connecting a pulling dummy at an end of the glass base material and then gripping and pulling the pulling dummy with a pair of rollers that grip or release the pulling dummy is provided. The method includes forming a rough surface part on the pulling dummy before elongating the glass base material. | 08-15-2013 |
20130247619 | MANUFACTURING METHOD FOR MOLD DIE, MOLD AND EYEGLASS LENS - A manufacturing method for a mold die comprising: making design data for a molding surface based on predetermined prescription information; creating the molding surface in accordance with the design data; specifying error amounts at first and second corresponding points defined on the created molding surface respectively corresponding first and second reference points; defining a first correction surface based on an error amount specified at the first corresponding point; of defining a second correction surface based on the first correction surface and an error amount specified at the second corresponding point, wherein the second correction surface has no power at the first corresponding point; combining a design surface by the design data, the first correction surface and the second correction surface, and corrects the design data based on combined data after the combining; and creating the molding surface in accordance with the corrected design data. | 09-26-2013 |
20140053606 | AMORPHOUS ALLOY, MOLDING DIE, AND METHOD FOR PRODUCING OPTICAL ELEMENT - An amorphous alloy contains 54 at % or more and 79 at % or less Re, 8 at % or more and 28 at % or less Ir, and 11 at % or more and 18 at % or less Nb. A molding die includes a release film composed of the amorphous alloy. A method for producing an optical element, the method including press-molding a glass preform with the molding die. | 02-27-2014 |
20140116094 | Glass Alignment for High Temperature Processes - Apparatus, systems and methods for alignment of a glass member for high temperature processing are disclosed. The high temperature processing can, for example, pertain to a slumping process to mold glass into a predetermined shape (e.g., a three-dimensional shape). In one embodiment, a glass slumping system can have a mold and an alignment system that support a glass member to be slumped relative to the mold. The alignment system may have a plurality of alignment members being configured to move away from the glass member as the temperature increases during the slumping process to allow the glass member to bend around the mold without interference. | 05-01-2014 |
20140311185 | MANUFACTURING METHOD FOR GLASS MOLDED BODY AND MANUFACTURING APPARATUS FOR GLASS MOLDED BODY - Provided are a manufacturing method for a glass molded body and a manufacturing apparatus for a glass molded body, which employs the manufacturing method. The manufacturing method includes the steps of: heating molds each containing a glass material; press-molding the glass material; and cooling the press-molded glass material. The heating step includes: heating the molds with heating members arranged on both sides of a conveying direction of a support for conveying the molds in one direction; and conveying the two molds through rotation of the support or the like so as to reverse, at least once, an arrangement order of the two molds, which are arranged on a supporting surface of the support conveying the molds between the heating members, with respect to the conveying direction of the support. | 10-23-2014 |
20150052950 | GLASS-FORMING TOOLS AND METHODS - Refractory glass-forming tools, including glass-forming molds incorporating protective metal nitride surface coatings, with optional alumina barrier layers disposed between the mold bodies and coating for high-temperature nitride coating stability, offering particular advantages for the manufacture by direct molding of optically finished glass products such as information display cover glasses from refractory alkali aluminosilicate glasses at molding temperatures up to and above 800° C. | 02-26-2015 |
20150114044 | METHOD FOR PROCESSING GLASS PLATE - A method for processing a glass sheet includes a scribing step of heating a part of a glass sheet with laser light which is transmitted through the glass sheet from a first main surface of the glass sheet to a second main surface of the glass sheet, and moving an irradiation position of the laser light on the glass sheet, thereby forming a scribe line on at least the second main surface of the glass sheet. | 04-30-2015 |
20150121961 | LASER PROCESSING METHOD AND LASER PROCESSING APPARATUS - The present invention provides a laser processing method in which a modified layer is formed inside a workpiece by irradiating the workpiece with a laser beam having such a wavelength as to be transmitted through the workpiece with the focal point of the laser beam positioned inside the workpiece. In the laser processing method, the spectral line width of the laser beam is set equal to or smaller than 10 pm. | 05-07-2015 |
20150121962 | Laser Processing System Using Broad Band Pulsed Lasers - A laser material processing system which includes a pulsed fiber laser source having a continuous wavelength bandwidth of larger than 100 nm and pulse width of from 100 femtosecond to 1 microsecond, a broad band laser emitted from one core of an optical fiber, where the broad band laser is applied to a subject material to produce removal of the subject material and/or color change of the subject material. | 05-07-2015 |
20150121963 | GLASS PRODUCT MANUFACTURING METHOD AND GLASS PRODUCT MANUFACTURING APPARATUS - A glass product manufacturing method that includes a step of disposing a workpiece configured of a glass material between two mutually-opposing punches, a step of starting to apply a pulsed current to the workpiece, and a step of starting to apply pressure to the workpiece using the two punches. The glass product is obtained from the workpiece through a discharge plasma process that causes the workpiece to deform in a state where the temperature of the workpiece has been increased by the application of the pulsed current. | 05-07-2015 |
20160068422 | AMORPHOUS ALLOY MOLDING DIE AND METHOD FOR FORMING OPTICAL ELEMENT - An amorphous alloy contains Ni and Nb and has a composition including at least one of: a composition containing Nb with a content in the range of 35.6 atomic % to 75.1 atomic %, Ir with a content in the range of 7.2 atomic % to 52.3 atomic %, and Ni with a content in the range of 4.0 atomic % to 48.5 atomic %; a composition containing Nb with a content in the range of 19.6 atomic % to 80.9 atomic %, Re with a content in the range of 7.4 atomic % to 59.2 atomic %, and Ni with a content in the range of 4.1 atomic % to 56.9 atomic %; and a composition containing Nb with a content in the range of 7.5 atomic % to 52.9 atomic %, W with a content in the range of 16.4 atomic % to 47.0 atomic %, and Ni with a content in the range of 22.0 atomic % to 53.3 atomic %. | 03-10-2016 |
20160376184 | APPARATUS AND METHOD FOR REFORMING SHEET MATERIAL - A mold has a sealing surface bearing a sealing profile. A plenum has a sealing surface bearing a sealing profile. The mold and plenum together form an apparatus for reforming a sheet material. In the closed position of the apparatus, the sealing profile of the mold is in opposing relation to the sealing profile of the plenum and the sealing profiles of the mold and plenum together define a profiled sealing gap. When the sheet material is wedged into the profiled sealing gap, a direct seal will be formed between the sheet material and each of the mold and plenum, resulting in two forming areas within the apparatus. | 12-29-2016 |