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| Number | Title | Issue Date |
| 7841211 | Production process of synthetic quartz glass First of all, there is provided a production process of a synthetic quartz glass which has less impurity, has a high-temperature viscosity characteristic equal to or more than that of a natural quartz glass, and hardly deforms even in a high-temperature environment,... | 11/30/2010 |
| 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 a temperature 50° to 170° K above the softening point, this tempera... | 05/20/2008 |
| 7320826 | Photochromic articles with reduced temperature dependency and methods for preparation Described are photochromic articles that include a substrate, a temperature dependent reducing amount of at least one organic photochromic material (b) that changes from more absorbing to less absorbing of radiation in its activating spectral absorbance as the tempe... | 01/22/2008 |
| 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 arranged between the upper and lower dies, a pressing step of pressing t... | 01/01/2008 |
| 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 press-molding and a method of manufacturing the same; and an optical elemen... | 12/18/2007 |
| 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 graphite, preferably coated with SiC on the surfaces of the mold cavity... | 10/02/2007 |
| 7248763 | Optical resonators with reduced OH-content This application describes optical resonators substantially free of hydrogen and hydroxyl radicals and related fabrication techniques. ... | 07/24/2007 |
| 7230760 | Polarizers and isolators and methods of manufacture A passively aligned optical isolator includes laminated layers of material including two polarizing glass layers sandwiching a Faraday rotator layer. Each polarizing glass layer comprises a glass matrix containing elongated metal particles exhibiting a change in pol... | 06/12/2007 |
| 7172983 | SiO-TiOglass body with improved resistance to radiation The invention discloses an SiO2—TiO2 glass, which is preferably made by flame-hydrolysis and which distinguishes itself by increased resistance to radiation, especially in connection with EUV lithography. By purposefully reducing the hydrogen... | 02/06/2007 |
| 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 temperature corresponding to a glass viscosity of from 105 | 11/28/2006 |
| 7110179 | Polarizers and isolators and methods of manufacture Polarizing glass articles, optical isolators including polarizing glass articles, and methods of manufacturing polarizing glass articles and optical isolators are disclosed. The methods manufacture can be used to manufacture isolators exhibiting improved contrast ra... | 09/19/2006 |
| 7104090 | Method of making polarizing glasses Polarizing glass articles and methods of manufacturing polarizing glass articles are disclosed. The method involves forming a polarizing layer on the surface of the glass article by ion-exchanging silver or copper into the surface. ... | 09/12/2006 |
| 7082789 | Silica glass member for semiconductor and production method thereof A silica glass member for semiconductor in which each concentration of Fe, Cu, Cr and Ni is 5 ppb or less and the concentration of an OH group is 30 ppm or less and which has a viscosity of 1013.0 poise or more at 1200° C. is provided as a silica glass m... | 08/01/2006 |
| 7077978 | Phosphors containing oxides of alkaline-earth and group-IIIB metals and white-light sources incorporating same A phosphor comprises a material having a formula of AMgD10O17:Eu2+,Mn2+, wherein A is at least an alkaline-earth metal selected from the group consisting of Ba, Sr, Ca, and combinations thereof; and D is at least a metal s... | 07/18/2006 |
| 7060640 | Optical glass An optical glass comprises, in mass percent, 15–35% of P2O5, 40–60% of Nb2O5, 0.5% to less than 15% of Na2O and 3% to less than 25% of BaO, has a ratio in mass % of (BaO+Nb2O5)/{(TiO | 06/13/2006 |
| 7010940 | Process for producing glass and glass-melting apparatus thereof A process for producing a high-quality glass from highly reactive raw materials and a glass-melting apparatus for use therewith, comprising the step of charging a material for the glass to a molten glass in a heated vessel, (1) wherein an oxidizing gas is bubbled in... | 03/14/2006 |
| 6920765 | Combined advanced finishing and UV laser conditioning process for producing damage resistant optics A method for reducing the density of sites on the surface of fused silica optics that are prone to the initiation of laser-induced damage, resulting in optics which have far fewer catastrophic defects, and are better capable of resisting optical deterioration upon e... | 07/26/2005 |
| 6911080 | Evaluation process of reactivity of silica glass with silicon melt and vibration at its surface, and silica glass crucible not causing the surface vibration A evaluation process of a vibration level at the surface of silicon melt held in a silica glass crucible is provided by setting in the vacuum furnace, the test piece of the silica glass cut out from a silica glass crucible, melting a little amount of silicon put on ... | 06/28/2005 |
| 6810687 | Method for producing synthetic quartz glass members for excimer lasers In the light of the disadvantages of the prior art technology, an object of the present invention is to provide a method for producing a synthetic quartz glass member for excimer lasers, which comprises, while suppressing the generation of reductive defects which im... | 11/02/2004 |
| 6807823 | Fluorine-containing glass A process for producing fluorine-containing glass. An SiO2 soot is synthesized by hydrolyzing SiCl4. The soot is heated in a chlorine-compound-free atmosphere containing a fluorine compound gas to form a fluorine-containing silica glass. The gl... | 10/26/2004 |
| 6786064 | Process for the production of glass molded article Provided are a process for the production of a precision press-molded article having a high transmittance and a method of treating a glass to color or decolor the glass, the process comprising heat-treating a press-molded article containing at least one selected fro... | 09/07/2004 |
| 6772608 | Method for producing UV polarizers The invention relates to a method for producing UV polarizers, according to which spheroid particles situated near the surface of the glass are incorporated into the support material (primarily standard float glass) in a novel arrangement. According to the method fo... | 08/10/2004 |
| 6761045 | Infrared broadband dichroic glass polarizer Polarized glass articles having a wavelength range that is broadened for high contrast-ratio applications. A method that imparts to a glass article a high contrast ratio of at least 40 dB for use as dichroic glass polarizers over a wavelength range of 880 nm to 1,69... | 07/13/2004 |
| 6672107 | Quartz glass crucible and process for the production thereof In order to provide a quartz glass crucible distinguished by high purity, high opacity and/or low transmissibility in the IR spectrum, it is proposed on the basis of a known quartz glass crucible of opaque quartz glass with a crucible body symmetrical in ... | 01/06/2004 |
| 6553787 | Method for manufacturing quartz glass crucible Present invention suppresses undesirable effects of the bubbles trapped in a silica glass crucible on single crystallization during the pulling process under a high-temperature load. When raw material powder is melted in a mold 1, graphite components of e... | 04/29/2003 |
| 6536236 | Method of making a polarizing glass A method of producing a polarizing glass article that exhibits a broad band of high contrast polarizing properties in the infrared region of the radiation spectrum. The polarizing glass is phase-separated or exhibits photochromic properties based on silve... | 03/25/2003 |
| 6524773 | Polarizing glasses having integral non-polarizing regions Polarizing glass having localized regions or patterns of non-polarizing glass is disclosed. The glass is formed by use of reducing gas-blocking material, by local thermal heating of the glass, or by an etching technique.... | 02/25/2003 |
| 6513347 | Heat conditioning process For heat conditioning flat panel glass substrates the substrates are directly exposed in vacuum to the radiation of lamps, the lamps being selected so that their spectral radiation characteristics (b, c) fit with the absorption characteristics (a) of the ... | 02/04/2003 |
| 6442973 | Synthetic silica glass and its manufacturing method A method is provided for manufacturing a synthetic silica glass. The method includes the steps of maintaining a silica glass member, which is formed using a flame hydrolysis method and having an OH group concentration of about 500 ppm to about 1300 ppm, a... | 09/03/2002 |
| 6420291 | Lead silicate glass and a process for setting a reduced surface resistance of the lead silicate glass The invention relates to a lead silicate glass, to the use thereof for the production of secondary electron multipliers, and to a process for setting a reduced surface resistance of a lead silicate glass of this type. The lead silicate glass has the follo... | 07/16/2002 |
| 6381986 | Sintered quartz glass products and methods for making same A number of unique processes are disclosed for manufacture of sintered high-purity quartz glass products in which a shaped silica body or preform is made from an aqueous slurry of micronized silica particles by gel casting, slip casting or electrophoretic... | 05/07/2002 |
| 6380110 | Process for making opaque quartz, for carrying out the process suitable SiO2 granulate, and component of opaque quartz glass In a known process for the production of opaque quartz glass a blank is formed from synthetic SiO2 granulate and is heated at a vitrification temperature to form a body of opaque quartz glass. In order to provide on this basis a process for the... | 04/30/2002 |
| 6363748 | Method of making protective filter lens An ophthalmic, protective, filter lens, and a method of producing such lens, the lens having a ratio of Z and Y tristimulus values between 0.25-0.40, a dominant wavelength between 570-580 nm. on a color mixture diagram, a sharp transmission drop between 4... | 04/02/2002 |
| 6360563 | Process for the manufacture of quartz glass granulate In a process for manufacture of dense, amorphous quartz glass granulate by production of a porous granulate from amorphous SiO2 powder and vitrification of the granulate, a porous SiO2 granulate is exposed to a fuel gas flame and is ... | 03/26/2002 |
| 6355587 | Quartz glass products and methods for making same The application discloses a number of unique sintered quartz glass products together with new silica compositions and processes for making and using such products. Nitrided clear and opaque nitrided quartz products are disclosed having incredible physical... | 03/12/2002 |
| 6339033 | Silica glass having superior durability against excimer laser beams and method for manufacturing the same A silica glass is provided for use in an optical system processing an excimer laser beam. The silica glass has a molecular hydrogen concentration of about 5×1018 molecules/cm3 or less and is substantially free from defects which bec... | 01/15/2002 |
| 6158246 | Barrier film for hydrogen coloration in glass Method of patterning or forming color gradients and/or designs on a glass surface are disclosed. Patterns are formed by depositing a film of metal on at least one surface of the glass; forming a layer of photoresist over the metal; exposing the article to... | 12/12/2000 |
| 6143676 | Synthetic silica glass used with uv-rays and method producing the same An object of the present invention is to provide a synthetic silica glass optical material which exhibits excellent transmittance as well as durability for high output power vacuum ultraviolet rays, being emitted from, for example, ArF excimer lasers and ... | 11/07/2000 |
| 6094941 | Process for manufacturing optical member for excimer laser An excellent quartz glass optical member having stable laser beam resistance, can be obtained by preparing quartz glass in a process having: a first step of subjecting a starting material obtained from silicon halide, alkoxysilane, alkylalkoxysilane, etc. to a... | 08/01/2000 |
| 6089042 | Method of forming glass having integral polarizing and non-polarizing regions Method of making polarizing glass having integral polarizing and non-polarizing regions disclosed. The method involves applying a protective glass/frit material capable of blocking reducing gas to the surface of the glass to form a desired pattern, exposi... | 07/18/2000 |
