Optical pick-up device and optical component for the same
    12.
    发明授权
    Optical pick-up device and optical component for the same 有权
    光拾取装置和光学元件相同

    公开(公告)号:US08971164B2

    公开(公告)日:2015-03-03

    申请号:US13595159

    申请日:2012-08-27

    IPC分类号: G11B7/1372 G11B7/1392

    摘要: An optical component for an optical pick-up for converging a laser beam having a particular wavelength onto a recording layer of an optical disc. The optical component comprises a base material formed of a resin composition, an undercoating which is formed of three layers of thin films having a same main constituent and is formed on a top surface of the base material, and a functional thin film formed on a top surface of the undercoating. In this configuration, each of a first layer and a third layer of the undercoating is a thin film formed without introducing oxygen, and a second layer is a thin film formed while introducing oxygen. A film thickness of the undercoating falls within a range of 160 nm to 270 nm, and film thicknesses of the thin films constituting the undercoating are substantially equal to each other.

    摘要翻译: 一种用于将具有特定波长的激光束会聚在光盘的记录层上的用于光学拾取器的光学部件。 光学部件包括由树脂组合物形成的基材,底涂层,其由具有相同主要成分的三层薄膜形成,并形成在基材的顶表面上,以及形成在顶部的功能性薄膜 表面的底漆。 在该结构中,底涂层的第一层和第三层中的每一层都是不引入氧而形成的薄膜,第二层是在引入氧的同时形成的薄膜。 底涂层的膜厚在160nm〜270nm的范围内,构成底涂层的薄膜的膜厚基本相等。

    Optical element having antireflection film
    14.
    发明授权
    Optical element having antireflection film 失效
    具有防反射膜的光学元件

    公开(公告)号:US06919134B2

    公开(公告)日:2005-07-19

    申请号:US10279931

    申请日:2002-10-25

    IPC分类号: G02B1/11 B32B9/04

    摘要: The present invention is directed to an optical element having an antireflection film formed on a plastic substrate, wherein the reflectance of the antireflection film is low while the transmittance thereof is high. The impact resistance, the adhesiveness, the heat resistance, the abrasion resistance and the alkali resistance of the antireflection film on the plastic substrate are superior.The optical element having an antireflection film has at least one layer of the antireflection film that is a hybrid layer made of an inorganic substance and an organic substance.

    摘要翻译: 本发明涉及一种具有形成在塑料基板上的抗反射膜的光学元件,其中抗反射膜的反射率低,而其透射率高。 塑料基板上的抗反射膜的耐冲击性,粘合性,耐热性,耐磨性和耐碱性优异。 具有抗反射膜的光学元件具有作为由无机物质和有机物质构成的混合层的至少一层的防反射膜。

    Optical element having antireflection film

    公开(公告)号:US06606196B2

    公开(公告)日:2003-08-12

    申请号:US09939664

    申请日:2001-08-28

    IPC分类号: G02B111

    CPC分类号: G02B1/115

    摘要: An optical element having a plastic substrate and an antireflection film of a &lgr;/4-&lgr;/2-&lgr;/4 or &lgr;/4-&lgr;/4-&lgr;/2-&lgr;/4 type (&lgr;=500 nm) provided in that order on the plastic substrate, wherein the layer of &lgr;/2 is a high-refraction equivalent film containing at least three layers and having a refractive index of from 1.80 to 2.40, and the even-numbered layer(s) of the equivalent film is an SiO2 layer or a layer in which SiO2 is a main component.