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    Method of producing a surface microstructure on glass
    1.
    发明授权
    Method of producing a surface microstructure on glass 失效
    在玻璃上生产表面微结构的方法

    公开(公告)号：US5090982A

    公开(公告)日：1992-02-25

    申请号：US476399

    申请日：1990-06-01

    申请人： John M. Bradshaw ,  Richard Gelder

    发明人： John M. Bradshaw ,  Richard Gelder

    IPC分类号： C03B23/00 ,  G11B7/26

    CPC分类号： C03B23/0013 ,  G11B7/26 ,  G11B7/263

    摘要： A method to produce a microstructure on glass which is of excellent quality and allows for repeated use of a stamper. The method comprises heating the glass to a surface temperature corresponding to a log viscosity between about 13 to 8 poise, supporting the glass and impressing it with the stamper heated to about the same temperature as the glass so that a microstructure on the heated stamper will deform the surface of the glass to give a corresponding microstructure on the surface of the glass, which when separated from the stamper and cooled in a controlled manner gives the desired surface microstructure on the glass. The method is particularly suitable for forming tracking grooves on optical disk substrates.

    摘要翻译： PCT No.PCT / GB88 / 01080 Sec。 371 1990年6月1日第 102（e）日期1990年6月1日PCT提交1988年12月2日PCT公布。 第WO89 / 05507号公报 日期：1989年6月15日。一种在玻璃上生产具有优异质量并允许重复使用压模的微结构的方法。 该方法包括将玻璃加热至对数粘度在约13至8泊之间的表面温度，支撑玻璃并将其加热至与玻璃大约相同的温度的压模，使得加热的压模上的微结构将变形 玻璃的表面在玻璃表面上产生相应的微观结构，当与压模分离并以受控的方式冷却时，玻璃的表面微结构呈现出所需的表面微结构。 该方法特别适用于在光盘基板上形成跟踪槽。

    Photochromic glasses
    2.
    发明授权
    Photochromic glasses 失效
    光致变色眼镜

    公开(公告)号：US4092174A

    公开(公告)日：1978-05-30

    申请号：US836116

    申请日：1977-09-21

    申请人： Edric Ellis ,  Richard Gelder ,  Allan Hale

    发明人： Edric Ellis ,  Richard Gelder ,  Allan Hale

    IPC分类号： C03C3/064 ,  C03C4/06 ,  C03C21/00 ,  C03C3/26 ,  C03C3/08 ,  C03C3/10

    CPC分类号： C03C3/064 ,  C03C21/002 ,  C03C4/06 ,  Y10S501/903

    摘要： Fast-response alumino-phosphate photochromic glasses having silver halide crystals dispersed throughout the glass consisting essentially of, in weight percentages:SiO.sub.2 : 8.5 to 25%, Al.sub.2 O.sub.3 : 13 to 36.5%, P.sub.2 O.sub.5 : 7.5 to 33.5%, B.sub.2 O.sub.3 : 7 to 28%; R.sub.2 O: 7 to 20.5%, R'O:0 to 21%, TiO.sub.2 : 0 to 6%, ZrO.sub.2 : 0 to 10%, PbO:0 to 8%,Where R.sub.2 O represents at least one of Na.sub.2 O, K.sub.2 O and Li.sub.2 O, the maximum content of Li.sub.O being 5%; and R'O represents at least one of MgO,CaO,SrO and BaO, within the following individual limits: MgO: 0 to 4%, CaO: 0 to 6.5%, SrO: 0 to 10%, BaO: 0 to 21%; the amount of SiO.sub.2 is not less than 16% when the B.sub.2 O.sub.3 content is less than 8%; and the silver content of the glass, expressed as Ag.sub.2 O, is not less than 0.05% by weight.Such glasses in which Al.sub.2 O.sub.3 is the largest constituent are preferred for ophthalmic purposes, but it is also possible for either B.sub.2 O.sub.3 or P.sub.2 O.sub.5 to be the largest constituent. The refractive index can be corrected to n.sub.D = 1.523.

    摘要翻译： 具有分散在整个玻璃中的卤化银晶体的快速响应的磷酸铝光致变色玻璃基本上由重量百分比组成：

    Metal substrate for a magnetic disc and manufacture thereof
    3.
    发明授权
    Metal substrate for a magnetic disc and manufacture thereof 失效
    用于磁盘的金属基片及其制造

    公开(公告)号：US5593602A

    公开(公告)日：1997-01-14

    申请号：US203623

    申请日：1994-03-01

    申请人： Richard Gelder ,  John M. Bradshaw

    发明人： Richard Gelder ,  John M. Bradshaw

    IPC分类号： G11B5/66 ,  C23F1/02 ,  G11B5/73 ,  G11B5/733 ,  G11B5/82 ,  G11B5/84 ,  C23F1/00

    CPC分类号： G11B5/82 ,  C23F1/02 ,  G11B5/8404

    摘要： The present invention provides a process for producing a metal substrate for a thin film magnetic data storage disc, the process including the steps of: (a) providing a metal substrate; (b) printing a masking pattern onto at least a portion of the surface of the substrate; and (c) etching the unmasked surface of the substrate thereby to texture the substrate surface. The present invention also provides a metal substrate for a thin film magnetic data storage disc, the substrate having a roughened surface produced by preferential area etching, the roughened surface being composed of a regular pattern of peaks separated by valleys.

    摘要翻译： 本发明提供一种用于制造薄膜磁数据存储盘的金属基板的方法，该方法包括以下步骤：（a）提供金属基板; （b）在掩模表面的至少一部分上印刷掩模图案; 和（c）蚀刻衬底的未掩模表面，从而织构衬底表面。 本发明还提供一种用于薄膜磁数据存储盘的金属基板，该基板具有通过优先区域蚀刻产生的粗糙表面，该粗糙表面由由谷分开的规则图案形成。

    Photochromic alumino-phosphate glasses
    6.
    发明授权
    Photochromic alumino-phosphate glasses 失效
    光致变色磷酸铝眼镜

    公开(公告)号：US4088501A

    公开(公告)日：1978-05-09

    申请号：US764314

    申请日：1977-01-31

    申请人： Edric Ellis ,  Richard Gelder ,  Allan Hale

    发明人： Edric Ellis ,  Richard Gelder ,  Allan Hale

    IPC分类号： C03C3/062 ,  C03C4/06 ,  C03C3/26 ,  C03C3/04 ,  C03C3/10

    CPC分类号： C03C4/06 ,  C03C3/062

    摘要： Fast-response photochromic boron-free aluminophosphate glasses which have silver halide crystals dispersed throughout the glass comprise, in weight percentages:______________________________________ SiO.sub.2 10 to 17% Al.sub.2 O.sub.3 20 to 29% P.sub.2 O.sub.5 30 to 40% R.sub.2 O 8.5 to 17% R'O 4 to 18% ______________________________________ Where R.sub.2 O represents Na.sub.2 O and/or K.sub.2 O; R'O represents CaO and/or BaO, the CaO content being at least 4% if BaO is absent and being from 0 to 7% if BaO is present, while the BaO content is from 0 to 18%; the total of SiO.sub.2 + Al.sub.2 O.sub.3 + P.sub.2 O.sub.5 amounting to not less than 69% by weight of the glass. Preferably the total of SiO.sub.2 + P.sub.2 O.sub.5 + Al.sub.2 O.sub.3 is not less than 72% by weight of the glass. The silver content of the glass, expressed as Ag.sub.2 O, is preferably not less than 0.05%. Refractive index n.sub.D can be corrected to the standard ophthalmic value of 1.523 by additions of TiO.sub.2, ZrO.sub.2 and/or PbO.

    摘要翻译： 具有分散在整个玻璃中的卤化银晶体的快速响应的光致变色无硼磷酸铝玻璃包含重量百分比：} SiO 2 10至17％} Al 2 O 3 20至29％} P 2 O 5 30至40％} R 2 O 8.5至17％} R 'O 4〜18％} R 2 O表示Na 2 O和/或K 2 O; 如果BaO不存在，则R'O表示CaO和/或BaO，如果BaO不存在，CaO含量为至少4％，如果BaO存在，则CaO含量为0至7％，而BaO含量为0至18％; SiO 2 + Al 2 O 3 + P 2 O 5的总量不小于玻璃的69重量％。 优选地，SiO 2 + P 2 O 5 + Al 2 O 3的总和不小于玻璃的72重量％。 以Ag2O表示的玻璃的银含量优选为0.05％以上。 通过添加TiO 2，ZrO 2和/或PbO，可以将折射率nD校正为1.523的标准眼科值。