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    OPTICAL GLASS, PREFORM FOR PRESS FORMING, OPTICAL ELEMENT, AND PROCESSES FOR PRODUCING THESE
    2.
    发明公开
    OPTICAL GLASS, PREFORM FOR PRESS FORMING, OPTICAL ELEMENT, AND PROCESSES FOR PRODUCING THESE 有权
    光学玻璃，预制件的压力成型，光学元件与方法及其

    公开(公告)号：EP2119682A1

    公开(公告)日：2009-11-18

    申请号：EP08721317.9

    申请日：2008-02-27

    申请人： Hoya Corporation

    发明人： IKENISHI, Mikio

    IPC分类号： C03C3/247 ,  C03B11/00 ,  G02B1/00

    CPC分类号： C03C3/247 ,  C03B11/12 ,  G02B5/226

    摘要： Provided is a low-dispersion optical glass that is formed of a fluorophosphate glass in which the molar ratio of the content of O 2- to the content of P 5+ , O 2- /P 5+ , is 3.5 or more and that has an Abbe's number (ν d ) of over 70 or has an F - content of 65 anionic % or more, and the optical glass enables the suppression of the volatilization of a glass component when an optical glass formed of a fluorophosphate glass is produced or when an obtained glass in a molten state is caused to flow out to shape it into a glass shaped material, so that the variation of properties such as a refractive index, etc., involved in the fluctuations of a glass composition and the variation of quality such as the occurrence of striae can be suppressed.

    GLASS FOR USE AS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, SUBSTRATE FOR INFORMATION RECORDING MEDIUM, INFORMATION RECORDING MEDIUM, AND THEIR PRODUCTION METHODS
    4.
    发明公开
    GLASS FOR USE AS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, SUBSTRATE FOR INFORMATION RECORDING MEDIUM, INFORMATION RECORDING MEDIUM, AND THEIR PRODUCTION METHODS 有权
    玻璃用作衬底用于信息记录媒体的基片信息记录介质; 记录媒体与信息处理用于生产

    公开(公告)号：EP2036867A1

    公开(公告)日：2009-03-18

    申请号：EP07744930.4

    申请日：2007-06-08

    申请人： Hoya Corporation

    发明人： TACHIWANA, Kazuo ,  HACHITANI, Yoichi ,  ZOU, Xuelu ,  IKENISHI, Mikio ,  OSAKABE, Kinobu

    IPC分类号： C03C3/087 ,  C03C3/085 ,  C03C3/095 ,  C03C3/097 ,  C03C21/00 ,  G11B5/73 ,  G11B5/82

    CPC分类号： G11B5/735 ,  C03C3/083 ,  C03C3/087 ,  C03C3/095 ,  C03C3/097 ,  C03C15/00 ,  C03C19/00 ,  C03C21/002 ,  C03C23/0075 ,  G11B5/7315 ,  G11B5/82 ,  G11B5/8404 ,  Y10T428/24273 ,  Y10T428/315

    摘要： According to one aspect of the present invention, provided is glass for use in substrate for information recording medium, which comprises, denoted as molar percentages, a total of 70 to 85 percent of SiO 2 and Al 2 O 3 , where SiO 2 content is equal to or greater than 50 percent and Al 2 O 3 content is equal to or greater than 3 percent; a total of equal to or greater than 10 percent of Li 2 O, Na 2 O and K 2 O; a total of 1 to 6 percent of CaO and MgO, where CaO content is greater than MgO content; a total of greater than 0 percent but equal to or lower than 4 percent of ZrO 2 , HfO 2 , Nb 2 O 5 , Ta 2 O 5 , La 2 O 3 Y 2 O 3 and TiO 2 ; with the molar ratio of the total content of Li 2 O, Na 2 O and K 2 O to the total content of SiO 2 , Al 2 O 3 , ZrO 2 , HfO 2 , Nb 2 O 5 , Ta 2 O 5 , La 2 O 3 ,Y 2 O 3 and TiO 2 ((Li 2 O + Na 2 O + K 2 O)/(SiO 2 + Al 2 O 3 + ZrO 2 + HfO 2 + Nb 2 O 5 + Ta 2 O 5 + La 2 O 3 + Y 2 O 3 + TiO 2 )) being equal to or less than 0.28. Further provided are the substrate for information recording medium, information recording medium and their manufacturing methods according to the present invention.

    摘要翻译： 。根据本发明的一个方面，提供了一种玻璃在用于信息记录介质，它包括基片的使用，以摩尔％表示，共70到SiO 2和Al 2 O 3，85％，其中SiO 2的含量 等于或大于50％和Al 2 O 3的含量等于或大于3％以上; 总共等于或Li 2 O大于10％，Na 2 O和K 2 O; 总共1至6 CaO和MgO，其中，CaO的含量比MgO的含量更大的百分比; 总共大于0％但等于或ZrO 2的，HFO 2，NB 2 O 5，的Ta 2 O 5的低于4％的La 2 O 3 Y 2 O 3和TiO 2; 与Li 2 O的总含量的摩尔比，Na 2 O和K 2 O与SiO 2的总含量的Al 2 O 3，ZrO 2的，HFO 2，NB 2 O 5，的Ta 2 O 5，拉 2 O 3，Y 2 O 3和TiO 2（（Li 2 O的+的Na 2 O + K 2 O）/（SiO 2的+的Al 2 O 3 + ZrO 2的+的HfO 2 +的Nb 2 O 5 +的Ta 2 O 5 +的La 2 O 3 + Y 2 O 3 + TiO 2的））等于或小于12:28。 进一步提供了用于信息记录介质，信息记录介质及其制造方法雅丁到本发明的基材。

    GLASS FOR USE IN SUBSTRATE FOR INFORMATION RECORDING MEDIUM, SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND INFORMATION RECORDING MEDIUM, AND THEIR MANUFACTURING METHOD
    5.
    发明公开
    GLASS FOR USE IN SUBSTRATE FOR INFORMATION RECORDING MEDIUM, SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND INFORMATION RECORDING MEDIUM, AND THEIR MANUFACTURING METHOD 审中-公开
    GLASS FOR USE IN打底信息记录介质，基板的记录介质和信息记录介质与信息处理用于生产

    公开(公告)号：EP3178794A1

    公开(公告)日：2017-06-14

    申请号：EP16181256.5

    申请日：2007-06-08

    申请人： HOYA CORPORATION

    发明人： TACHIWANA, Kazuo ,  HACHITANI, Yoichi ,  ZOU, Xuelu ,  IKENISHI, Mikio ,  OSAKABE, Kinobu

    IPC分类号： C03C3/087 ,  C03C3/097 ,  C03C19/00 ,  C03C21/00 ,  C03C23/00 ,  G11B5/73 ,  G11B5/82 ,  G11B5/84

    CPC分类号： G11B5/735 ,  C03C3/083 ,  C03C3/087 ,  C03C3/095 ,  C03C3/097 ,  C03C15/00 ,  C03C19/00 ,  C03C21/002 ,  C03C23/0075 ,  G11B5/7315 ,  G11B5/82 ,  G11B5/8404 ,  Y10T428/24273 ,  Y10T428/315

    摘要： According the present invention, there is provided a glass for use in substrate for information recording medium, which comprises SiO 2 ; Al 2 O 3 ; one or more alkali metal oxides selected from the group consisting of Li 2 O, Na 2 O and K 2 O; one or more alkaline earth metal oxides selected from the group consisting of MgO, CaO, SrO and BaO; and one or more oxides selected from the group consisting of ZrO 2 , HfO 2 , Nb 2 O 5 , Ta 2 O 5 , La 2 O 3 , Y 2 O 3 and TiO 2 ; wherein the contents of various components, in molar percent, are as follows: SiO 2 : ≥ 50, Al 2 O 3 : ≥ 3, SiO 2 + Al 2 O 3 : 70 to 85; Li 2 O : ≥ 4.3, Na 2 O : ≥ 5, Li 2 O + Na 2 O : ≤ 24; alkali metal oxides + alkaline earth meal oxides : > 8; MgO : 2 + HfO 2 + Nb 2 O 5 + Ta 2 O 5 + La 2 O 3 + Y 2 O 3 + TiO 2 )/(Li 2 O + Na 2 O + K 2 O + MgO + CaO + SrO + BaO)) : ≥ 0.035; (MgO/CaO) : 0.130 to 0.700. Further provided are a substrate for information recording medium, an information recording medium and their manufacturing methods.

    摘要翻译： 。根据本发明，提供了一种用于在信息记录介质，其包括SiO 2的基板用玻璃; 的Al 2 O 3; 选自的Li 2 O，Na 2 O和K 2 O中选择的一种或多种碱金属氧化物; 选自由MgO，CaO，SrO和BaO中的一种或多种碱土金属氧化物; 和选自氧化锆，的HfO 2，Nb的2 O 5，的Ta 2 O 5，的La 2 O 3，Y 2 O 3和TiO 2中选择的一种或多种氧化物; worin各种成分的含量，在摩尔百分比，如下：SiO 2的：‰¥50的Al 2 O 3：‰¥3的SiO 2 +的Al 2 O 3：70〜85; Li 2 O的：‰¥4.3，钠2 O：‰¥5，Li 2 O的+的Na 2 O：‰¤24; 碱金属氧化物+碱土餐氧化物：> 8; 的MgO：<3，CaO的：‰¤4; 和各种组分的摩尔比为：（（氧化锆+的HfO 2 +的Nb 2 O 5 +的Ta 2 O 5 +的La 2 O 3 + Y 2 O 3 + TiO 2的）/（Li 2 O的+的Na 2 O + K 2 O + MgO的CaO的+ + +的SrO BaO）中）：‰¥0.035; 氧化镁（MgO / CaO）的：0.130到0.700。 进一步提供了用于信息记录介质，信息记录介质及其制造方法上的底物。

    Optical glass, press-molding preform, process for the production thereof, optical element and process for the production thereof
    7.
    发明公开
    Optical glass, press-molding preform, process for the production thereof, optical element and process for the production thereof 有权
    光学玻璃母材的制造，其用于它们的制造光学元件的方法和模制和处理。

    公开(公告)号：EP1707541A1

    公开(公告)日：2006-10-04

    申请号：EP06006263.5

    申请日：2006-03-27

    申请人： HOYA CORPORATION

    发明人： IKENISHI, Mikio ,  ZOU, Xuelu

    IPC分类号： C03C3/17 ,  C03C3/247

    CPC分类号： C03C3/17 ,  C03C3/247

    摘要： A low-dispersion optical glass suitable for producing a quality preform from a molten glass and suitable for precision press-molding, which is a fluorophosphate glass containing, as essential cationic components, P 5+ , Al 3+ , at least two members selected from Mg 2+ , Ca 2+ , Sr 2+ and Ba z+ as divalent cationic components (R 2+ ) and Li + and containing, by cationic %,
    10 to 45 % of P 5+ ,
    5 to 30 % of Al 3+ ,
    0 to 20% of Mg 2+ ,
    0 to 25 % of Ca 2+ ,
    0 to 30 % of Sr 2+ ,
    0 to 33 % of Ba 2+ ,
    1 to 30 % of Li + ,
    0 to 10 % of Na + ,
    0 to 10 % of K + ,
    0 to 5 % of Y 3+ ,
    and
    0 to 15 % of B 3+ ,
    the molar ratio of the content of F - to the total content of F - and O 2- , F - / (F - + O 2- ), being 0.25 to 0.85,
    the optical glass having a refractive index (N d ) of 1.40 to 1.58 and an Abbe's number ( ν d ) of 67 to 90.

    摘要翻译： 适合于从熔融玻璃制造预成型体的品质和适于精密模压的低分散光学玻璃，所有这是一种氟磷酸盐玻璃包含，作为主要阳离子成分，P 5+，铝3+，选自以下的至少两个成员 毫克2+，钙离子，锶2+和Ba Z +为二价阳离子组分（R 2+）和Li +和含，以阳离子％表示，10至P 5+的45％以下，Al为5〜30％3+ ，将Mg 2+ 0〜20％以下，Ca 2+为0〜25％，0〜30％Sr的2+，钡2+ 0〜33％，Li +的1〜30％，0〜10％ 的Na +，K + 0〜10％，Y 3+ 0〜5％，和B 3+，F的含量的摩尔比为0〜15％ - 至F的总含量 - 和O 2- F - /（F - + O 2-），为0:25〜0.85，具有1:40的折射率（n d）为以1:58和67阿贝数（1/2 D）到90的光学玻璃