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公开(公告)号：US4528010A
公开(公告)日：1985-07-09
申请号：US584968
申请日：1984-02-29
Applicant: Takao Edahiro , Nobuo Inagaki , Shiro Kurosaki
Inventor： Takao Edahiro , Nobuo Inagaki , Shiro Kurosaki
IPC: C01B33/187 , C03B8/02 , C03B37/016 , C03C3/04 , C03C3/06 , C03C23/00 , G02B6/00 , C03B19/06
CPC classification number: C03C23/008 , C03B37/016 , C03C3/06 , C03B2201/30 , C03B2201/50 , C03C2201/50 , C03C2203/24 , C03C2203/36 , Y10S65/901
Abstract: A process for producing an optical glass product having a predetermined distribution of refractive index in the interior of the product is disclosed. The process comprises the steps of:(a) preparing an aqueous silicate solution containing from about 0.1 to about 0.6 mol/liter of Si (as SiO.sub.2) comprising silicic acid and at least one element selected from the group consisting of rubidium, thallium and cesium;(b) mixing the silicate solution with an acidic aqueous solution, and letting the two solutions react with each other for a period of time sufficient for polymerization to produce a porous gelled product wherein the silica particles are agglomerated;(c) leaching the gelled product with a liquid selected from the group consisting of water, a weakly acidic aqueous solution, an aqueous solution having an alkali metal salt dissolved therein and an aqueous solution of organic matter capable of dissolving Rb.sub.2 O, Cs.sub.2 O, or Tl.sub.2 O, unitl the center of the product starts to dissolve; and(d) drying the leached product in a predetermined atmosphere, and further heating the partially leached gelled product at a temperature sufficiently high to eliminate the particulate material but lower than the melting point of the silica.
Abstract translation: 公开了一种在产品内部具有预定折射率分布的光学玻璃制品的制造方法。 该方法包括以下步骤：（a）制备含有约0.1至约0.6mol /升包含硅酸的Si（作为SiO 2）和选自铷，铊和铯中的至少一种元素的硅酸盐水溶液 ; （b）将硅酸盐溶液与酸性水溶液混合，并使两种溶液彼此反应一段足以聚合的时间以产生多孔凝胶产物，其中二氧化硅颗粒凝聚; （c）用选自水，弱酸性水溶液，溶解有碱金属盐的水溶液和能够溶解Rb 2 O，Cs 2 O或T 1/2的有机物水溶液的液体浸出凝胶状产品 ，产品中心开始溶解; 和（d）在预定的气氛中干燥浸出的产品，并且在足够高的温度下进一步加热部分浸出的凝胶产品以消除颗粒材料但低于二氧化硅的熔点。
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公开(公告)号：US1652259A
公开(公告)日：1927-12-13
申请号：US55078622
申请日：1922-04-08
Applicant: CORNING GLASS WORKS
Inventor： CHITTENDEN TAYLOR WILLIAM
CPC classification number: C03C4/005 , C03C3/06 , C03C3/089 , C03C3/091 , C03C4/00 , C03C2201/10 , C03C2201/32 , C03C2201/50 , C03C2203/10 , C03C2204/04
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23.发明公开公开(公告)号：US20240067562A1
公开(公告)日：2024-02-29
申请号：US18500505
申请日：2023-11-02
Applicant: CORNING INCORPORATED
Inventor： PETER JOSEPH LEZZI
CPC classification number: C03C21/002 , C03C3/087 , C03C2201/50
Abstract: Ion-exchanged alkali aluminosilicate glass articles with a ratio of peak compressive stress value to Young's modulus value of 15 or more. The glass articles may include Al2O3 mol %+RO mol %≥17 mol %, where RO mol %=MgO mol %+CaO mol %, and be substantially free of ZnO, SrO, BaO, B2O3, P2O5, Li2O, and K2O. The glass articles may have a peak compressive stress value in a range of 500 MPa to 1300 MPa. The glass articles are suitable for various high-strength applications, including cover glass applications that experience significant bending stresses during use, for example, cover glasses for flexible displays.
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公开(公告)号：US20230159383A1
公开(公告)日：2023-05-25
申请号：US18057381
申请日：2022-11-21
Applicant: SCHOTT AG , SCHOTT Technical Glass Solutions GmbH
Inventor： Sebastian Leukel , Jacqueline Engelmann
CPC classification number: C03C21/002 , C03C4/10 , C03C3/085 , C03C2201/40 , C03C2201/50 , C03C2203/50
Abstract: A chemically toughenable or toughened sheet-like glass article is provided. The article has a glass with a composition comprising Al2O3, SiO2, Li2O, and Na2O, wherein (Al2O3)−(Li2O+Na2O), in mol %, is less than 0; a thickness between 0.3 mm and 4 mm; a light transmittance of at least 0.001% to at most 60% at 450 nm, of at least 0.001% to at most 30% at 540 nm, and of at least 0.001% to at most 30% at 630 nm; and an IR transmittance of at least 10% to not more than 99% at any wavelength in a wavelength range from 900 nm to 1100 nm. The light and IR transmittances are determined for a thickness of the article of 1 mm.
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公开(公告)号：US09932265B2
公开(公告)日：2018-04-03
申请号：US15351782
申请日：2016-11-15
Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Inventor： Tetsuya Haruna , Masaaki Hirano , Yoshiaki Tamura , Tetsuya Nakanishi
IPC: C03C3/06 , G02B6/02 , C03C13/04 , C03B37/027
CPC classification number: C03C13/046 , C03B37/02727 , C03B2201/50 , C03B2205/55 , C03B2205/56 , C03C3/06 , C03C13/045 , C03C2201/21 , C03C2201/23 , C03C2201/50 , C03C2203/54 , G02B6/02395 , Y02P40/57
Abstract: There is provided a method for producing a low-loss alkali metal-doped silica core optical fiber having excellent hydrogen resistance. The method for producing the optical fiber according to the present invention includes a drawing step of drawing an optical fiber preform in a drawing furnace to produce a silica glass-based optical fiber including a core region containing an alkali metal with an average concentration of 0.5 atomic ppm or more and a cladding region that surrounds the core region and a heating step of heating the optical fiber in a heating furnace through which the optical fiber drawn from the drawing furnace passes.
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Patent Agency Ranking
公开(公告)号：US20180052280A1
公开(公告)日：2018-02-22
申请号：US15725014
申请日：2017-10-04
Inventor： Lei ZHANG , Shengya LONG , Jihong ZHU , Jun WU , Ruichun WANG
CPC classification number: G02B6/03683 , C03C3/06 , C03C13/045 , C03C13/046 , C03C2201/12 , C03C2201/31 , C03C2201/32 , C03C2201/42 , C03C2201/50 , C03C2201/54 , C03C2213/00 , G02B6/02009
Abstract: A doping optimized single-mode optical fiber with ultra low attenuation includes a core layer and cladding layers. The cladding layers has an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary outer cladding layer. The content of fluorine in the core layer is ≦0.5 wt %, ΔGe≦0.12%, Δn1≦0.12%. The content of fluorine in the inner cladding layer is 0.5-1.5 wt %, Δn2≦−0.14%. The content of fluorine in the trench cladding layer is 1-3 wt %, Δn3≦−0.25%. The content of fluorine in the auxiliary outer cladding layer is 0.5-2 wt %, Δn4≦−0.14%. The outer cladding layer is a pure silicon dioxide glass layer and/or a metal-doped silicon dioxide glass layer.
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公开(公告)号：US20170371096A1
公开(公告)日：2017-12-28
申请号：US15700493
申请日：2017-09-11
Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Inventor： Hirotaka SAKUMA , Yoshiaki TAMURA , Keisei MORITA
IPC: G02B6/02 , C03B37/014 , C03C13/04
CPC classification number: G02B6/02 , C03B37/01211 , C03B37/01228 , C03B37/01248 , C03B37/014 , C03B37/01453 , C03B2201/12 , C03B2201/20 , C03B2201/50 , C03B2201/54 , C03B2203/22 , C03C3/06 , C03C13/042 , C03C13/045 , C03C25/607 , C03C2201/11 , C03C2201/12 , C03C2201/50 , C03C2201/54
Abstract: An optical fiber containing alkali metal elements or the like in which Rayleigh scattering loss can be reduced is provided. An optical fiber includes a core composed of silica glass and a cladding which surrounds the core, has a refractive index lower than a refractive index of the core, and is composed of silica glass containing fluorine. The core contains a first group of dopants and a second group of dopants having a diffusion coefficient lower than a diffusion coefficient of the first group of dopants. The difference between the maximum value and the minimum value of residual stress in the optical fiber is 150 MPa or less.
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公开(公告)号：US20170108642A1
公开(公告)日：2017-04-20
申请号：US15290105
申请日：2016-10-11
Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Inventor： Yoshiaki TAMURA , Tetsuya HARUNA , Masaaki HIRANO , Hirotaka SAKUMA
CPC classification number: G02B6/03694 , C03C13/045 , C03C13/046 , C03C2201/11 , C03C2201/12 , C03C2201/50 , C03C2201/54 , C03C2213/00 , G02B6/03611
Abstract: An optical fiber having a reduced attenuation includes a silica glass core and a silica glass cladding. The silica glass core has substantially no germanium and includes a first core and a second core. The second core encloses the first core, the refractive index of the second core is larger than the refractive index of the first core, and the average value of halogen concentration of the second core is 5000 ppm or more. The silica glass cladding surrounds the second core and contains substantially no gemianium. The refractive index of the cladding is smaller than the refractive index of the first core.
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公开(公告)号：US09411095B2
公开(公告)日：2016-08-09
申请号：US14765110
申请日：2014-01-28
Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Inventor： Yoshiaki Tamura , Tetsuya Haruna , Masaaki Hirano
IPC: G02B6/02 , C03B37/018 , C03B37/012 , C03C13/04
CPC classification number: G02B6/0229 , C03B37/01248 , C03B37/01807 , C03B37/01869 , C03B2201/20 , C03B2201/50 , C03B2203/22 , C03B2203/23 , C03C13/045 , C03C2201/11 , C03C2201/50 , G02B6/02395
Abstract: An optical fiber preform which can be drawn into a low attenuation optical fiber is provided with a core portion and a cladding portion surrounding the core portion. The core portion includes a first core portion and a second core portion surrounding the first core portion. The cladding portion includes a first cladding portion surrounding the second core portion and a second cladding portion surrounding the first cladding portion. The first core portion contains an alkali metal element, the concentration of oxygen molecules contained in glass is 30 mol ppb or more and 200 mol ppb or less in a part of or entire region having an alkali metal atom concentration of 100 atomic ppm or more, and the concentration of oxygen molecules contained in glass is 10 mol ppb or less in a region having an alkali metal atom concentration of 50 atomic ppm or less.
Abstract translation: 可以拉入低衰减光纤的光纤预制件设置有芯部和围绕芯部的包层部。 芯部包括第一芯部分和围绕第一芯部分的第二芯部分。 包层部分包括围绕第二芯部的第一包层部分和围绕第一包层部分的第二包层部分。 第一核心部分含有碱金属元素，在碱金属原子浓度为100原子ppm以上的部分或全部区域中，玻璃中含有的氧分子的浓度为30摩尔ppb以上且200摩尔ppb以下， 并且在碱金属原子浓度为50原子ppm以下的区域中，玻璃中含有的氧分子的浓度为10摩尔ppb以下。
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公开(公告)号：US20160168010A1
公开(公告)日：2016-06-16
申请号：US14958024
申请日：2015-12-03
Applicant: Corning Incorporated
Inventor： Sezhian Annamalai , Carlos Alberto Duran , Kenneth Edward Hrdina
CPC classification number: C03C3/06 , C03B19/1453 , C03B19/1461 , C03B25/02 , C03B2201/07 , C03B2201/075 , C03B2201/12 , C03B2201/14 , C03B2201/23 , C03B2201/32 , C03B2201/40 , C03B2201/42 , C03B2201/50 , C03B2201/54 , C03C3/112 , C03C4/00 , C03C2201/12 , C03C2201/14 , C03C2201/32 , C03C2201/40 , C03C2201/42 , C03C2201/50 , C03C2201/54 , C03C2203/52
Abstract: A doped silica-titania glass article is provided that includes a glass article having a glass composition comprising (i) a silica-titania base glass, (ii) a fluorine dopant, and (iii) a second dopant. The fluorine dopant has a concentration of fluorine of up to 5 wt. % and the second dopant comprises one or more oxides selected from the group consisting of Al, Nb, Ta, B, Na, K, Mg, Ca and Li oxides at a total oxide concentration from 50 ppm to 6 wt. %. Further, the glass article has an expansivity slope of less than 0.5 ppb/K2 at 20° C. The second dopant can be optional. The composition of the glass article may also contain an OH concentration of less than 100 ppm.
Abstract translation: 提供掺杂二氧化硅 - 二氧化钛玻璃制品，其包括具有玻璃组合物的玻璃制品，所述玻璃组合物包含（i）二氧化硅 - 二氧化钛基底玻璃，（ii）氟掺杂剂和（iii）第二掺杂剂。 氟掺杂剂的氟浓度高达5wt。 ％，第二掺杂剂包含一种或多种选自Al，Nb，Ta，B，Na，K，Mg，Ca和Li氧化物的氧化物，其总氧化物浓度为50ppm至6wt。 ％。 此外，玻璃制品在20℃下具有小于0.5ppb / K 2的膨胀斜率。第二掺杂剂可以是任选的。 玻璃制品的组成也可以含有小于100ppm的OH浓度。
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