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189 条记录 (耗时 0.014 秒)

    Glass for multi-focal eyeglass lens
    93.
    发明授权
    Glass for multi-focal eyeglass lens 失效
    玻璃多焦点眼镜镜片

    公开(公告)号：US4562162A

    公开(公告)日：1985-12-31

    申请号：US665388

    申请日：1984-10-26

    申请人： Hiroji Sagara

    发明人： Hiroji Sagara

    IPC分类号： C03C3/07 ,  C03C3/072 ,  C03C3/074 ,  C03C4/00 ,  G02C7/00 ,  C03C3/102

    CPC分类号： C03C3/072 ,  C03C3/07 ,  C03C3/074 ,  Y10S501/903

    摘要： A glass for multi-focal eyeglass having a refractive index (n.sub.d) of 1.67 to 1.73, an Abbe number (.nu..sub.d) of 33 or more, a coefficient of thermal expansion of 82 to 95.times.10.sup.-7 and a softening point of 560.degree. to 640.degree. C., comprising, in % by weight,32 to 40% SiO.sub.2 +B.sub.2 O.sub.3 +Al.sub.2 O.sub.3 ;22 to 40% SiO.sub.2 ;0 to 10% B.sub.2 O.sub.3 ;0 to 4% Al.sub.2 O.sub.3 ;4 to 10% Li.sub.2 O+Na.sub.2 O+K.sub.2 O;0 to 4% Li.sub.2 O;0 to 7% Na.sub.2 O;0 to 7% K.sub.2 O;30 to 47% PbO;3 to 24% BaO+SrO+CaO+MgO+ZnO;0 to 20% BaO;0 to 15% SrO;0 to 10% CaO;0 to 8% MgO;0 to 15% ZnO; and1 to 7% ZrO.sub.2 ;wherein a weight ratio of alkali metal oxides/PbO ranges from 0.1 to 0.3.

    摘要翻译： 一种用于多焦点眼镜的玻璃，其折射率（nd）为1.67-1.73，阿贝数（nu d）为33以上，热膨胀系数为82〜95×10-7，软化点为560〜 640℃，以重量％计含有32〜40％的SiO 2 + B 2 O 3 + Al 2 O 3; 22〜40％SiO2; 0〜10％B2O3; 0〜4％Al2O3; 4〜10％Li2O + Na2O + K2O; 0〜4％Li2O; 0-7％Na2O; 0〜7％K2O; 30〜47％PbO; 3〜24％BaO + SrO + CaO + MgO + ZnO; 0〜20％BaO; 0〜15％SrO; 0〜10％CaO; 0〜8％MgO; 0〜15％的ZnO; 和1〜7％ZrO 2; 其中碱金属氧化物/ PbO的重量比为0.1〜0.3。

    Ophthalmic glasses with high indices of refraction
    95.
    发明授权
    Ophthalmic glasses with high indices of refraction 失效
    具有高折射率的眼镜

    公开(公告)号：US4351906A

    公开(公告)日：1982-09-28

    申请号：US327771

    申请日：1981-12-07

    申请人： Jean E. Boudot ,  Jean P. Mazeau ,  Andre C. Michaud

    发明人： Jean E. Boudot ,  Jean P. Mazeau ,  Andre C. Michaud

    IPC分类号： C03C3/07 ,  C03C3/074 ,  C03C3/102 ,  G02C7/00 ,  C03C3/10

    CPC分类号： C03C3/07 ,  Y10S501/903

    摘要： The present invention is drawn to glasses suitable for the fabrication of segments or buttons for multifocal ophthalmic lenses. The inventive glasses have refractive indices ranging between about 1.745-1.771, an Abbe number greater than 29 for a refractive index of 1.771 and greater than 31 for a refractive index of 1.745, a softening point between about 640.degree.-700.degree. C., a coefficient of thermal expansion (25.degree.-300.degree. C.) between about 90-98.times.10.sup.-7 /.degree.C., and satisfactory chemical durability. The glasses consist essentially, expressed in terms of weight percent on the oxide basis, of______________________________________ SiO.sub.2 28-32.5 Na.sub.2 O 2-9 K.sub.2 O 0-4 Li.sub.2 O 0-1 K.sub.2 O + Na.sub.2 O + Li.sub.2 O 4-10.5 BaO 0-22 La.sub.2 O.sub.3 0-20 BaO + La.sub.2 O.sub.3 14-22 PbO 28.5-34 ZnO 0-4 TiO.sub.2 0-9 ZrO.sub.2 2-6.5 Nb.sub.2 O.sub.5 0-10 TiO.sub.2 + Nb.sub.2 O.sub.5 4.5-12 ZrO.sub.2 + TiO.sub.2 + Nb.sub.2 O.sub.5 6-17 ______________________________________

    摘要翻译： 本发明涉及适用于制造多焦点眼镜片的片段或按钮的眼镜。 本发明的玻璃的折射率范围为约1.745-1.771，阿贝数大于29，折射率为1.771，折射率为1.745，折射率大于31，软化点为约640-73℃， 在约90-98×10 -7 /℃之间的热膨胀系数（25-300℃）和令人满意的化学耐久性。 玻璃基本上以氧化物的重量百分数表示，-SiO2 28-32.5 -Na2O 2-9-K2O 0-4 -Li2O 0-1-K2O + Na2O + Li2O 4-10.5 -BaO 0- 22 -La 2 O 3 0-20 -BaO + La 2 O 3 14-22 -PbO 28.5-34-ZnO 0-4 -TiO 2 0-9-Zr 2 2-6.5 -Nb 2 O 5 0-10 -TiO 2 + Nb 2 O 5 4.5-12 -ZrO 2 + TiO 2 + Nb2O5 6-17 -

    Glass for encapsulation of diodes
    96.
    发明授权
    Glass for encapsulation of diodes 失效
    用于封装二极管的玻璃

    公开(公告)号：US4076543A

    公开(公告)日：1978-02-28

    申请号：US782626

    申请日：1977-03-30

    申请人： Pascal Adrien Jean Joly ,  Jean-Claude Alphonse Henri Prat

    发明人： Pascal Adrien Jean Joly ,  Jean-Claude Alphonse Henri Prat

    IPC分类号： C03C3/07 ,  C03C3/072 ,  C03C3/074 ,  C03C8/24 ,  H01L23/29 ,  C03C3/10

    CPC分类号： C03C3/072 ,  C03C3/07 ,  C03C3/0745 ,  C03C8/245 ,  H01L23/291 ,  H01L2924/0002

    摘要： This invention is concerned with the production of glasses especially suitable for the encapsulation of semiconductor devices and, in particular, for the encapsulation of germanium and silicon diodes. The glasses have a low softening point, i.e., less than about 550.degree. C., are readily sealable to Dumet, and exhibit a viscosity at the liquidus of at least 20,000 poises. The glasses have compositions within the K.sub.2 O-PbO-B.sub.2 O.sub.3 -SiO.sub.2 system, are essentially free from Li.sub.2 O, Na.sub.2 O, Al.sub.2 O.sub.3, and TiO.sub.2, and demonstrate a mismatch in thermal expansion with Dumet at about 400.degree. C. of no more than about 200 PPM.

    摘要翻译： 本发明涉及特别适用于半导体器件的封装的玻璃的生产，特别是用于锗和硅二极管的封装。 玻璃具有低软化点，即小于约550℃，易于与杜美密封，并且在液相线处显示至少20,000泊的粘度。 该玻璃具有K2O-PbO-B2O3-SiO2体系内的组成，基本上不含Li2O，Na2O，Al2O3和TiO2，并且在约400℃下显示出与Dumet不匹配的热膨胀不大于约200PPM 。

    Titanium dioxide containing glasses having a high index of refraction and a high dispersion and process of producing same
    97.
    发明授权
    Titanium dioxide containing glasses having a high index of refraction and a high dispersion and process of producing same 失效
    具有高折射率和高分散度的含二氧化钛的玻璃及其制造方法

    公开(公告)号：US3960579A

    公开(公告)日：1976-06-01

    申请号：US566306

    申请日：1975-04-09

    申请人： Heinz Broemer ,  Norbert Meinert ,  Johann Spincic

    发明人： Heinz Broemer ,  Norbert Meinert ,  Johann Spincic

    IPC分类号： C03C3/062 ,  C03C3/064 ,  C03C3/07 ,  C03C3/072 ,  C03C3/04 ,  C03C3/08 ,  C03C3/10 ,  C03C3/30

    CPC分类号： C03C3/062 ,  C03C3/064 ,  C03C3/07 ,  C03C3/072 ,  Y10S501/901 ,  Y10S501/903

    摘要： Optical silicate glasses containing titanium dioxide and having a high index of refraction and high dispersion are composed of1 % to 10 %, by weight, of silicon dioxide SiO.sub.2,30 % to 50 %, by weight, of barium oxide BaO,18 % to 24 %, by weight, aluminum oxide Al.sub.2 O.sub.3, and21 % to 30 %, by weight, of titanium dioxide TiO.sub.2.In such glasses the barium oxide can be replaced partially by sodium oxide Na.sub.2 O, beryllium oxide BeO, calcium oxide CaO, strontium oxide SrO, cadmium oxide CdO, gadolinium oxide Ga.sub.2 O.sub.3, indium oxide In.sub.2 O.sub.3, or yttrium oxide Y.sub.2 O.sub.3. Likewise, the silicon dioxide therein can be replaced partially by boron trioxide B.sub.2 O.sub.3, lead monoxide PbO, germanium dioxide GeO.sub.2, stannic oxide SnO.sub.2, zirconium oxide ZrO.sub.2, hafnium oxide HfO.sub.2, or thorium oxide ThO.sub.2.

    摘要翻译： 含有二氧化钛并且具有高折射率和高分散性的光学硅酸盐玻璃由1重量％至10重量％，二氧化硅二氧化硅，重量比为30重量％至50重量％的氧化钡BaO 18重量％ 24重量％的氧化铝Al 2 O 3和21重量％至30重量％的二氧化钛二氧化钛。