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    High absorbance Pb-containing glass for cathode ray tube picture screen
    23.
    发明授权
    High absorbance Pb-containing glass for cathode ray tube picture screen 失效
    高吸收性含铅玻璃用于阴极射线管图像屏幕

    公开(公告)号：US4520115A

    公开(公告)日：1985-05-28

    申请号：US519650

    申请日：1983-08-02

    Applicant: Burkhard Speit ,  Karl Mennemann ,  Georg Gliemeroth

    Inventor： Burkhard Speit ,  Karl Mennemann ,  Georg Gliemeroth

    IPC: C03C3/066 ,  C03C3/07 ,  C03C3/072 ,  C03C3/074 ,  C03C3/102 ,  C03C3/108 ,  C03C3/11 ,  C03C4/08 ,  H01J29/86 ,  C03C3/10

    CPC classification number: H01J29/863 ,  C03C3/07 ,  C03C3/102 ,  C03C4/087

    Abstract: These objects have been attained by providing highly absorbent lead containing alkali metal silicate glasses for cathode ray tube image screens, having a linear absorption coefficient .mu. of >30 cm.sup.-1 (0.6 .ANG.) and with a high resistance to discoloration by X-ray and electron radiation, comprises, in weight percent:______________________________________ SiO.sub.2 20-65% P.sub.2 O.sub.5 + B.sub.2 O.sub.3 + Al.sub.2 O.sub.3 0-30% Li.sub.2 O 0-5% Na.sub.2 O 0-10% K.sub.2 O 0-15% MgO + CaO + ZnO 0-15% SrO 0-20% BaO 0-40% PbO 5-60% ZrO.sub.2 0-10% CeO.sub.2 0.1-5% Other Components 0-20%. ______________________________________

    Abstract translation: 这些目的已经通过为阴极射线管图像屏幕提供含有碱金属硅酸盐玻璃的高吸收性铅，其线性吸收系数μ> 30cm-1（0.6安格姆），并且通过X射线具有高抗变色性， 电子辐射以重量百分数计：-SiO2 20-65％-P2O5 + B2O3 + Al2O3 0-30％-Li2O 0-5％-Na2O 0-10％-K2O 0-15％-MgO + CaO + ZnO0 -15％-SrO 0-20％-BaO 0-40％-PbO 5-60％-ZrO 2 0-10％-CeO 2 0.1-5％ - 其它组分0-20％。 -

    Acidproof, hydrolysis-resistant optical and ophthalmic glass of low density
    25.
    发明授权
    Acidproof, hydrolysis-resistant optical and ophthalmic glass of low density 失效
    耐酸，耐水解的光学和眼镜玻璃密度低

    公开(公告)号：US4390638A

    公开(公告)日：1983-06-28

    申请号：US282787

    申请日：1981-07-13

    Applicant: Karl Mennemann ,  Georg Gliemeroth ,  Volkmar Geiler

    Inventor： Karl Mennemann ,  Georg Gliemeroth ,  Volkmar Geiler

    IPC: G02C7/02 ,  C03C3/064 ,  C03C3/066 ,  C03C3/068 ,  C03C3/072 ,  C03C3/074 ,  C03C4/20 ,  C03C13/04 ,  G02B1/00 ,  C03C3/08 ,  C03C3/10

    CPC classification number: C03C3/064 ,  C03C3/066 ,  C03C3/068 ,  Y10S501/901 ,  Y10S501/903

    Abstract: An optical and ophthalmic glass having an index of refraction of .gtoreq.1.69, an Abbe number of .gtoreq.37, and a density of .ltoreq.3.30 g/cm.sup.3, consists essentially of (in % by weight):______________________________________ SiO.sub.2 18-36 B.sub.2 O.sub.3 3-18 GeO.sub.2 0-8 Al.sub.2 O.sub.3 0-6, wherein SiO.sub.2 + B.sub.2 O.sub.3 + Al.sub.2 O.sub.3 + GeO.sub.2 25-39 P.sub.2 O.sub.5 0-14, wherein SiO.sub.2 + B.sub.2 O.sub.3 + Al.sub.2 O.sub.3 + GeO.sub.2 + P.sub.2 O.sub.5 = 30-44 Li.sub.2 O 0-12 Na.sub.2 O 0-14 K.sub.2 O 0-18 Li.sub.2 O + Na.sub.2 O + K.sub.2 O = 2-18 MgO 0-15 CaO 7-25 MgO + CaO 15-32 SrO 0-13 BaO 0-17 ZnO 0-15 PbO 0-10 SrO + BaO + ZnO + PbO 0-20 TiO.sub.2 3-14 Nb.sub.2 O.sub.5 0-13 WO.sub.3 0-10 TiO.sub.2 + Nb.sub.2 O.sub.5 + WO.sub.3 = 10-21 ZrO.sub.2 0-15, La.sub.2 O.sub.3 0-20 Y.sub.2 O.sub.3 0-16 Gd.sub.2 O.sub.3 0-16 Yb.sub.2 O.sub.3 0-10 La.sub.2 O.sub.3 + Y.sub.2 O.sub.3 + Gd.sub.2 O.sub.3 + Yb.sub.2 O.sub.3 = 0-20 Ta.sub.2 O.sub.5 0-13 HfO.sub.2 0-5 SnO.sub.2 0-6. ______________________________________

    Abstract translation: 具有折射率> / = 1.69，阿贝数≥37，密度为3.30g / cm 3的光学和眼镜玻璃基本上由（以重量％计）：-SiO 2 18 -36 -B2O3 3-18 -GeO2 0-8 -Al2O3 0-6，其中SiO2 + B2O3 + Al2O3 + GeO2 = 25-39 -P2O5 0-14，其中SiO2 + B2O3 + Al2O3 + GeO2 + P2O5 = 30 -44 -Li2O 0-12 -Na2O 0-14 -K2O 0-18 -Li2O + Na2O + K2O = 2-18 -MgO 0-15 -CaO 7-25 -MgO + CaO 15-32 -SrO 0-13 - BaO 0-17 -ZnO 0-15 -PbO 0-10 -SrO + BaO + ZnO + PbO 0-20 -TiO2 3-14 -Nb2O5 0-13 -WO3 0-10 -TiO2 + Nb2O5 + WO3 = 10-21 -ZrO2 0-15，-La2O3 0-20 -Y2O3 0-16 -Gd2O3 0-16 -Yb2O3 0-10 -La2O3 + Y2O3 + Gd2O3 + Yb2O3 = 0-20-Ta2O5 0-13 -HfO2 0-5 -SnO2 0-6。 -

    Lightweight, high refractive index glasses for spectacle lenses
    26.
    发明授权
    Lightweight, high refractive index glasses for spectacle lenses 失效
    眼镜镜片重量轻，高折射率眼镜

    公开(公告)号：US4213786A

    公开(公告)日：1980-07-22

    申请号：US45612

    申请日：1979-06-05

    Applicant: Marga Faulstich ,  Volkmar Geiler ,  Georg Gliemeroth

    Inventor： Marga Faulstich ,  Volkmar Geiler ,  Georg Gliemeroth

    IPC: C03C3/064 ,  C03C3/068 ,  C03C3/072 ,  C03C3/08 ,  C03C3/10

    CPC classification number: C03C3/072 ,  C03C3/064 ,  C03C3/068 ,  Y10S501/90 ,  Y10S501/901

    Abstract: A glass having a high refractive index, preferably >1.77, and a low specific gravity, preferable .ltoreq.3.8, is provided for utilization as spectacle lenses. The glass consists essentially of 80 mol percent or more of light cationic oxides with the remainder being cationic oxides having a greater molecular weight. It has a high crystallization stability in a viscosity range >200 poises and an expansion coefficient .alpha..times.10.sup.7 between 20.degree.-300.degree. C. of .ltoreq.100. Sufficiently light in weight to be well-suited for use as spectacle lenses, the glass can be continuously produced, as it has no pronounced tendency toward crystallization. The resulting corrective optical lenses have relatively high dioptric values, even with small center and edge thicknesses.

    Abstract translation: 提供折射率高，优选> 1.77，低比重，优选 200泊的粘度范围和20°-300℃之间的膨胀系数α×107的<100％之间具有高结晶稳定性。 足够轻的重量非常适合用作眼镜镜片，可以连续生产玻璃，因为它没有显着的结晶倾向。 所得到的校正光学透镜具有相对高的屈光度值，即使具有小的中心和边缘厚度。

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