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13 条记录 (耗时 0.018 秒)

    Optical material and composition for optical material
    3.
    发明授权
    Optical material and composition for optical material 失效
    光学材料的光学材料和组成

    公开(公告)号：US5171806A

    公开(公告)日：1992-12-15

    申请号：US729411

    申请日：1991-07-12

    申请人： Hisayuki Kayanoki ,  Koichi Maeda ,  Akio Takigawa

    发明人： Hisayuki Kayanoki ,  Koichi Maeda ,  Akio Takigawa

    IPC分类号： C08F218/16 ,  C08F222/40 ,  G02B1/04

    CPC分类号： G02B1/04 ,  C08F218/16 ,  C08F222/40

    摘要： A composition for an optical material, which comprises an N-phenylmaleimide, a di(meth)allyl diphenate and a bisphenol ester.The N-phenylmaleimide, the di(meth)allyl diphenate and the bisphenol ester are contained in amounts of 1 to 50% by weight, 5 to 50% by weight and 1 to 30% by weight, based on the total weight of these components, respectively, The composition affords a three-dimensionally crosslinked resin by radical polymerization. The resin is useful for an optical material.

    摘要翻译： 用于光学材料的组合物，其包含N-苯基马来酰亚胺，二（甲基）烯丙基二苯酸酯和双酚酯。 N-苯基马来酰亚胺，二（甲基）烯丙基二苯甲酸酯和双酚酯的含量为1〜50重量％，5〜50重量％，1〜30重量％，基于这些成分 该组合物通过自由基聚合提供三维交联的树脂。 该树脂可用于光学材料。

    Optical recording film and process for production thereof
    4.
    发明授权
    Optical recording film and process for production thereof 失效

    公开(公告)号：US06524771B2

    公开(公告)日：2003-02-25

    申请号：US09903585

    申请日：2001-07-13

    申请人： Koichi Maeda ,  Hiroaki Yamamoto ,  Akio Takigawa

    发明人： Koichi Maeda ,  Hiroaki Yamamoto ,  Akio Takigawa

    IPC分类号： G03H102

    CPC分类号： C03C17/009 ,  C03C1/008 ,  G03H2001/0264 ,  G03H2001/0417 ,  G03H2270/53 ,  G11B7/0065 ,  G11B7/251 ,  G11B7/26

    摘要： There are disclosed the following three types of optical recording film: (1) an optical recording film comprising a gel having a network structure of an inorganic substance and a polymer which is from a photopolymerizable compound (A) and present in the network structure in the gel, said gel containing an optical recording-induced difference in the network structure. (2) an optical recording film, which consists essentially of a porous gel having a network structure of an inorganic substance, the porous gel containing recording-induced porosity differences in the network structure. (3) an optical recording film which consists essentially of a porous gel having a network structure of an inorganic substance or a gel obtained by densification of the porous gel, the porous gel or the gel having a recording-induced concavo-convex form on the surface thereof.

    Plastic multifocal point spherical lens
    5.
    发明授权
    Plastic multifocal point spherical lens 失效
    塑料多焦点球面透镜

    公开(公告)号：US4944584A

    公开(公告)日：1990-07-31

    申请号：US315258

    申请日：1989-02-23

    申请人： Koichi Maeda ,  Akio Takigawa ,  Yasuyoshi Tago ,  Motoaki Yoshida

    发明人： Koichi Maeda ,  Akio Takigawa ,  Yasuyoshi Tago ,  Motoaki Yoshida

    IPC分类号： B29D11/00 ,  B32B7/02 ,  B32B27/08 ,  G02B3/10 ,  G02C7/06

    CPC分类号： B29D11/00528 ,  B29D11/00413 ,  G02B3/10 ,  G02C7/06

    摘要： A plastic multifocal point spherical lens comprising a unitary structure of (A) a first synthetic resin layer having a fixed refractive index, (B) a second synthetic resin layer having a substantially fixed refractive index different from the refractive index of the first synthetic resin layer, and (C) a third synthetic resin layer existing between the first synthetic resin layer and the second synthetic resin layer and having a refractive index gradient varying continuously from the refractive index of the first synthetic resin layer to that of the second synthetic resin layer, part of the second synthetic resin layer and part of the third synthetic resin layer together being recessed into the first synthetic resin layer, and the second synthetic resin layer being thicker at the recessed part than the rest. The lens is prepared by (1) partially polymerizing a first monomer to form a partially polymerized molded mass, (2) applying a second monomer to substantially the entire surface of the partially polymerized molded mass, and (3) after part of the second monomer has diffused into the partially polymerized molded mass, subjecting the entire monomers to polymerization reaction and substantially completing the polymerization.

    摘要翻译： 一种塑料多焦点球面透镜，包括（A）具有固定折射率的第一合成树脂层的单一结构，（B）具有与第一合成树脂层的折射率不同的折射率基本固定的第二合成树脂层 和（C）第三合成树脂层，其存在于第一合成树脂层和第二合成树脂层之间，并且具有从第一合成树脂层的折射率与第二合成树脂层的折射率连续变化的折射率梯度， 第二合成树脂层的一部分和第三合成树脂层的一部分一起凹入到第一合成树脂层中，并且第二合成树脂层在凹部处比其余部分更厚。 该透镜是通过（1）部分聚合第一单体以形成部分聚合的模制物质制备的，（2）将基本上整个部分聚合的模制物质表面施加第二单体，和（3）部分第二单体 已经扩散到部分聚合的模制物质中，使整个单体进行聚合反应并基本上完成聚合。

    Optical recording film and process for production thereof
    6.
    发明授权
    Optical recording film and process for production thereof 失效
    光学记录膜及其制造方法

    公开(公告)号：US06479193B1

    公开(公告)日：2002-11-12

    申请号：US08412021

    申请日：1995-03-28

    申请人： Koichi Maeda ,  Hiroaki Yamamoto ,  Akio Takigawa

    发明人： Koichi Maeda ,  Hiroaki Yamamoto ,  Akio Takigawa

    IPC分类号： G03H102

    CPC分类号： C03C17/009 ,  C03C1/008 ,  G03H2001/0264 ,  G03H2001/0417 ,  G03H2270/53 ,  G11B7/0065 ,  G11B7/251 ,  G11B7/26

    摘要： There are disclosed the following three types of optical recording film: (1) an optical recording film comprising a gel having a network structure of an inorganic substance and a polymer which is from a photopolymerizable compound (A) and present in the network structure in the gel, said gel containing an optical recording-induced difference in the network structure. (2) an optical recording film, which consists essentially of a porous gel having a network structure of an inorganic substance, the porous gel containing recording-induced porosity differences in the network structure. (3) an optical recording film which consists essentially of a porous gel having a network structure of an inorganic substance or a gel obtained by densification of the porous gel, the porous gel or the gel having a recording-induced concavo-convex form on the surface thereof.

    摘要翻译： 公开了以下三种类型的光学记录膜：（1）光记录膜，其包含具有无机物质的网状结构的凝胶和来自光聚合性化合物（A）的聚合物，并存在于网状结构体中 所述凝胶含有光学记录引起的网络结构差异;（2）光学记录膜，其基本上由具有无机物质的网状结构的多孔凝胶组成，所述多孔凝胶含有记录引起的孔隙度差异 网络结构;（3）光记录膜，其基本上由具有无机物质的网状结构的多孔凝胶或通过多孔凝胶的致密化得到的凝胶，多孔凝胶或凝胶具有记录引起的凹凸形状， 在其表面上形成凸形。