Lead-free and arsenic-free special short flint glass

    公开(公告)号:US07041612B2

    公开(公告)日:2006-05-09

    申请号:US10456323

    申请日:2003-06-06

    IPC分类号: C03C3/97 C03C3/87 C03C4/00

    CPC分类号: C03C3/097

    摘要: The invention describes a lead-free and arsenic-free special short flint glass with a refractive index 1.60≦nd≦1.65, an Abbe number of 41≦νd≦52, a relative partial dispersion 0.551≦PgF≦0.570 in the blue spectral region, a relative partial dispersion 0.507≦PCs≦0.525 in the red spectral region, a negative deviation of the relative partial dispersion from the normal line ΔPg,F≦−0.0045 and an improved chemical resistance which has the following composition (in % by weight): SiO2>50–65   Al2O30–7 B2O30–6 Li2O0–6 Na2O 3–11 K2O0–6 MgO 0–12 CaO 1–12 BaO0–8 La2O3 0–15 Ta2O5 0–10 Nb2O5 4–20 ZrO2>10–20   Σ(CaO + MgO + BaO) 1–25 Σ(Na2O + K2O + Li2O) 3–20 SiO2/(ZrO2 + La2O3 + Nb2O5 + Ta2O5)1.5–2.3.

    Optical fibers made from multicomponent glass
    2.
    发明授权
    Optical fibers made from multicomponent glass 失效
    由多组分玻璃制成的光纤

    公开(公告)号:US07072562B2

    公开(公告)日:2006-07-04

    申请号:US10674601

    申请日:2003-09-30

    IPC分类号: G02B6/00

    CPC分类号: C03C13/046

    摘要: The stepped optical fiber has a core glass member and a surrounding cladding glass member. It has a high numerical aperture (NA)≧0.50. The core glass member preferably has a zinc-containing composition including, in % by weight, SiO2, 42 to 53; ZnO, 16 to 38; PbO, 1 to 20; Na2O,

    摘要翻译: 阶梯式光纤具有芯玻璃构件和周围的包层玻璃构件。 它具有高数值孔径(NA)> = 0.50。 核心玻璃构​​件优选具有含锌组合物,其包含以重量%计的SiO 2,42至53; ZnO,16〜38; PbO,1〜20; Na 2 O,<14; K 2 O,<12; ZnO和PbO> = 30之和,Na 2 O 2和K 2 O 2之和为> = 2。 与该芯玻璃相容的包层玻璃组合物以重量%计含有SiO 2,60〜72, B 2 O 3,<20; AL 2 O 3,<10; NA 2 O,<18; 和K 2 O,<15。 所得到的光纤具有低衰减,非常中性的色彩传输和低制造成本。 其他包覆玻璃组合物导致在芯玻璃边界层处具有太多结晶的相当差的性质。 还准备了具有甚至更低孔径值> = 0.48的芯玻璃的环保无铅实施例。

    Method for melting or refining glasses or glass ceramics
    3.
    发明授权
    Method for melting or refining glasses or glass ceramics 失效
    熔化或精制玻璃或玻璃陶瓷的方法

    公开(公告)号:US06848275B1

    公开(公告)日:2005-02-01

    申请号:US09830029

    申请日:2000-08-08

    CPC分类号: C03B5/021

    摘要: This invention relates to a device for melting or refining glass or glass ceramics. According to the invention, such a device is provided with the following characteristics: a channel which is arranged in an essentially horizontal manner and which is provided with an inlet and an outlet for the glass melt; and an HF coil for coupling HF energy into the melt is allocated to the channel. The channel is made of a plurality of metal pipes in a similar way to a skull pot. Said pipes can be connected to a cooling medium.

    摘要翻译: 本发明涉及一种用于熔化或精制玻璃或玻璃陶瓷的装置。 根据本发明,这种装置具有以下特征:以基本上水平的方式布置并且设置有玻璃熔体的入口和出口的通道; 并且将HF能量耦合到熔体中的HF线圈被分配给通道。 该通道以与颅骨盆类似的方式由多个金属管制成。 所述管道可连接到冷却介质。

    Glass with high proportion of zirconium-oxide and its uses
    4.
    发明授权
    Glass with high proportion of zirconium-oxide and its uses 有权
    具有高比例氧化锆的玻璃及其用途

    公开(公告)号:US06627569B1

    公开(公告)日:2003-09-30

    申请号:US09869818

    申请日:2001-07-05

    IPC分类号: C03C3087

    摘要: The silicate glass has a composition (in % by weight, based on oxide) of SiO2, 54-72; Al2O3, 0.5-7; ZrO2, >10- 5-24; La2O3, 0-6; and TiO2, 0-4. The glass has at least 0.6% by weight of La2O3 or at least 0.1% by weight TiO2. The glass is in hydrolytic glass 1, acid class 3 or better, preferably acid class 1, and lye class 1. It has a glass transition temperature (Tg) of at least 640° C., a thermal expansion coefficient (&agr;20/30O) of 4.1×10−6 to 8.0×10−6/K, a refractive index (nd) of 1.53 to 1.63, an Abbé number (&ngr;d) of 47 to 66 and a negative anomalous partial dispersion in a blue spectral region (&Dgr;Pg,F) of up to −0.0130.

    摘要翻译: 硅酸盐玻璃具有SiO 2,54-72的组成(按重量计,基于氧化物); Al2O3,0.5-7; ZrO 2,> 10〜18; B2O3,0- <5; Na2O,2- <10; K2O1 0-5; 与Na2O + K2O,2- <10; caO,3-11; MgO,0-10; SrO,0-8; 宝,0-12; CaO + MgO + SrO + BaO> 5〜24; La2O3,0-6; 和TiO2,0-4。 玻璃具有至少0.6重量%的La 2 O 3或至少0.1重量%的TiO 2。 玻璃在水解玻璃1中,酸度为3级或更好,优选为酸1级,碱液为1级。玻璃化转变温度(Tg)至少为640℃,热膨胀系数(α20/ 30O) 为4.1×10 -6至8.0×10 -6 / K,折射率(nd)为1.53至1.63,修饰数(nud)为47至66,蓝色光谱区域为负异常部分色散 DeltaPg,F)高达-0.0130。

    Glass with high proportion of zirconium-oxide and its uses
    5.
    发明授权
    Glass with high proportion of zirconium-oxide and its uses 失效
    具有高比例氧化锆的玻璃及其用途

    公开(公告)号:US06630420B1

    公开(公告)日:2003-10-07

    申请号:US09913424

    申请日:2002-01-16

    IPC分类号: C03C3087

    CPC分类号: C03C3/087 C03C13/002

    摘要: The silicate glass has a composition (in % by weight, based on oxide) of SiO2, 54-72; Al2O3, 0.5-7; ZrO2, 10-20; B2O3, 0- 5-24; La2O3, 0-5; and TiO2, 0-4. The glass also contains at least 0.6 percent by weight of La2O3 or at least 0.1 percent by weight TiO2. The glass has a hydrolytic resistance in hydrolytic glass 1, an acid resistance in acid class 3 or better, preferably acid class 1, a caustic lye resistance in lye class 1, a glass transition temperature (Tg) of at least 650° C., a thermal expansion coefficient (&agr;20/300) of 4.1×10−6 to 7.4×10−6/K, a refractive index (nd) of 1.53 to 1.63, an Abbé number (&ngr;d) of 48 to 58 and a negative anomalous partial dispersion in a blue spectral region (&Dgr;Pg,F) of up to −0.0130.

    摘要翻译: 硅酸盐玻璃具有SiO 2,54-72的组成(按重量计,基于氧化物); Al2O3,0.5-7; ZrO2,10-20; B2O3,0- <5; Na2O,3-8; K2O,0-5; 与Na2O + K2O,2- <8; CaO,3-11; MgO,0-10; SrO,0-8; BaO,0α10; CaO + MgO + SrO + BaO> 5〜24; La2O3,0-5; 和TiO2,0-4。 该玻璃还含有至少0.6重量%的La 2 O 3或至少0.1重量%的TiO 2。 该玻璃在水解玻璃1中具有耐水解性,酸3级或更好,优选酸1级,碱液碱度1的耐碱碱液,玻璃化转变温度(Tg)至少为650℃, 4.1×10 -6至7.4×10 -6 / K的热膨胀系数(α20/ 300),折射率(nd)为1.53至1.63,Abbé数(nud)为48至58,负的 蓝色光谱区域中的异常部分色散(DeltaPg,F)高达-0.0130。

    Optical glass, optical elements made therefrom, method of making the optical elements from the glass, and optical components comprising one or more optical elements
    6.
    发明授权
    Optical glass, optical elements made therefrom, method of making the optical elements from the glass, and optical components comprising one or more optical elements 有权
    光学玻璃,由其制成的光学元件,从玻璃制造光学元件的方法以及包括一个或多个光学元件的光学部件

    公开(公告)号:US08404606B2

    公开(公告)日:2013-03-26

    申请号:US12711390

    申请日:2010-02-24

    IPC分类号: C03C3/068 C03C3/155 C03B11/00

    CPC分类号: C03C3/068

    摘要: The lead-free and arsenic-free optical glasses have a refractive index of 1.83≦nd≦1.95 and an Abbé number of 24≦νd≦35, good chemical resistance, excellent crystallization stability and a composition, in wt. % based on oxide content, of SiO2, 2-8; B2O3, 15-22; La2O3, 35-42; ZnO, 10-18; TiO2, 9-15; ZrO2, 3-10; Nb2O5, 4-10; and WO3, >0.5-3. Besides containing at most 5 wt. % of each of GeO2, Ag2O and BaO and conventional fining agents, they may also contain at most in total 5 wt. % of Al2O3, MgO, CaO, SrO, P2O5 and up to at most in total 5 wt. % of the components F, Ta2O5. The glasses are preferably free of alkali metal oxides, Bi2O3, Y2O3, Gd2O3 and/or Yb2O3. Optical elements made from the optical glass are also described.

    摘要翻译: 无铅和无砷的光学眼镜的折射率为1.83&nlE; nd&nlE; 1.95,Abbé数为24&nlE;&ngr; d&nlE; 35,良好的耐化学性,优异的结晶稳定性和组成,以重量计。 基于氧化物含量%,SiO 2,2-8; B2O3,15-22; La2O3,35-42; ZnO,10-18; TiO2,9-15; ZrO2,3-10; Nb2O5,4-10; 和WO3,> 0.5-3。 除含有最多5wt。 GeO 2,Ag 2 O和BaO和常规澄清剂中的每一种的%,它们也可以最多含有5wt。 %的Al 2 O 3,MgO,CaO,SrO,P 2 O 5,最多至多5重量% %的组分F,Ta2O5。 玻璃优选不含碱金属氧化物Bi 2 O 3,Y 2 O 3,Gd 2 O 3和/或Yb 2 O 3。 还描述了由光学玻璃制成的光学元件。

    METHOD AND DEVICE FOR PRODUCING GLASS PRODUCTS FROM A GLASS MELT
    7.
    发明申请
    METHOD AND DEVICE FOR PRODUCING GLASS PRODUCTS FROM A GLASS MELT 有权
    用于从玻璃熔体生产玻璃制品的方法和装置

    公开(公告)号:US20110011849A1

    公开(公告)日:2011-01-20

    申请号:US12834221

    申请日:2010-07-12

    IPC分类号: H05B6/10

    摘要: A method and a device for the continuous production of glass and glass ceramic products from a glass melt is provided, which simplifies the changing between two kinds of glass. The device includes a melting crucible and an induction coil, which preferably extends around the melting crucible in order to heat a glass melt by means of an induction field generated by the induction coil. The wall elements, which form the side wall of the crucible, have cooling channels, through which a cooling fluid can be conducted, so that the glass melt solidifies on the side wall and forms a skull layer. The interior side of the wall elements is formed at least in part by an aluminum nitride-containing ceramic.

    摘要翻译: 提供了一种用于从玻璃熔体连续生产玻璃和玻璃陶瓷产品的方法和装置,其简化了两种玻璃之间的变化。 该装置包括熔化坩埚和感应线圈,其优选围绕熔化坩埚延伸,以便通过感应线圈产生的感应场来加热玻璃熔体。 形成坩埚的侧壁的壁元件具有冷却通道,通过该通道可以导入冷却流体,使得玻璃熔体在侧壁上固化并形成颅骨层。 壁元件的内侧至少部分地由含氮化铝的陶瓷形成。

    Double crucible for a glass drawing method and method of making glass fiber or a preform with the double crucible
    9.
    发明授权
    Double crucible for a glass drawing method and method of making glass fiber or a preform with the double crucible 失效
    双坩埚用于制造玻璃纤维的玻璃拉制方法和制造方法或具有双坩埚的预成型体

    公开(公告)号:US07185517B2

    公开(公告)日:2007-03-06

    申请号:US10614449

    申请日:2003-07-07

    摘要: The double crucible for a glass drawing method has a heatable outer crucible (1) and an inner crucible (2) surrounded by the outer crucible (1), which is heatable separately from the outer crucible (1). Both crucibles (1,2) have an outlet nozzle (1a, 2a) for the glass to be drawn. To make glass fibers from heavy metal oxide glass (HMO-glass) with higher quality and comparatively simple crucible features, the outlet nozzle (1a) of the outer crucible (1) extends a certain distance beyond the outlet nozzle (2a) of the inner crucible (2). Surfaces of the outlet nozzles coming in contact with the glass melt are polished and are provided on a material, which has a reducing action on heavy metal glass in the melt in all cases. These surfaces also have sufficient mechanical strength for and chemical inertness to heavy metal oxide glass.

    摘要翻译: 用于玻璃拉制法的双坩埚具有由外坩埚(1)包围的可加热的外坩埚(1)和内坩埚(2),其与外坩埚(1)分开加热。 两个坩埚(1,2)都具有用于待拉制玻璃的出口喷嘴(1a,2a)。 为了从具有更高质量和相对简单的坩埚特征的重金属氧化物玻璃(HMO玻璃)制造玻璃纤维,外坩埚(1)的出口喷嘴(1a)延伸超过出口喷嘴(2a)的一定距离 内坩埚(2)。 与玻璃熔体接触的出口喷嘴的表面被抛光,并且在所有情况下都提供在对熔体中的重金属玻璃上具有还原作用的材料上。 这些表面也对重金属氧化物玻璃具有足够的机械强度和化学惰性。