Optical device for holographic recording or reading and method for controlling the same
    72.
    发明授权
    Optical device for holographic recording or reading and method for controlling the same 有权
    用于全息记录或读取的光学装置及其控制方法

    公开(公告)号:US07974173B2

    公开(公告)日:2011-07-05

    申请号:US12013506

    申请日:2008-01-14

    IPC分类号: G11B7/135

    CPC分类号: G11B7/0065 G11B7/1359

    摘要: An optical device for holographic recording or reading is provided and includes: a light emission unit that emits light to be irradiated on an optical recording medium, the light being recording or reading light; a first prism unit that moves in accordance with a moving speed of the optical recording medium and refracts the light to move the light irradiated on the optical recording medium over a distance in a moving direction of the optical recording medium so that the light is irradiated on substantially the same position on the optical recording medium for a period of time; and a second prism unit that moves in accordance with the moving speed of the first prism unit to compensate for an optical path length of the light.

    摘要翻译: 提供了一种用于全息记录或读取的光学装置,包括:发射要在光学记录介质上照射的光的发光单元,该光被记录或读取光; 第一棱镜单元,其根据光学记录介质的移动速度移动,并折射光以将照射在光学记录介质上的光沿光学记录介质的移动方向移动一定距离,使得光被照射在 在光记录介质上基本相同的位置一段时间; 以及第二棱镜单元,其根据第一棱镜单元的移动速度移动以补偿光的光路长度。

    Method for producing optical recording medium
    76.
    发明授权
    Method for producing optical recording medium 失效
    光记录介质的制造方法

    公开(公告)号:US07727428B2

    公开(公告)日:2010-06-01

    申请号:US12172657

    申请日:2008-07-14

    摘要: A method for producing an optical recording medium, includes: filling a plurality of spaces with a liquid photosensitive material, wherein each of the plurality of spaces is surrounded by a surface of a sheet material and partition walls that are formed on the surface of the sheet material for separating a plurality of recording areas, and the surface of the sheet material has recessed parts at positions where the plurality of recording areas is to be formed, each of the recessed parts protruding and deformed to a back surface side of the sheet material so as to have a volume in relation to a volumetric shrinkage factor of the photosensitive material; and pressing a member having a substantially flat surface to a back surface of the sheet material to make the recessed parts substantially flat and heating and hardening the photosensitive material to form the plurality of recording areas.

    摘要翻译: 一种光记录介质的制造方法,其特征在于,包括:用液体感光材料填充多个空间,其中,所述多个空间中的每一个被片材的表面和形成在所述片材的表面上的分隔壁包围 用于分离多个记录区域的材料,并且片材的表面在要形成多个记录区域的位置处具有凹部,每个凹部突出并变形到片材的背面侧,因此 具有相对于感光材料的体积收缩率的体积; 并将具有基本上平坦表面的构件按压到片材的后表面,以使凹陷部分基本上平坦,并加热和硬化感光材料以形成多个记录区域。

    Hologram reproduction method and apparatus
    78.
    发明授权
    Hologram reproduction method and apparatus 有权
    全息图再现方法和装置

    公开(公告)号:US07511867B2

    公开(公告)日:2009-03-31

    申请号:US11527577

    申请日:2006-09-27

    IPC分类号: G03H1/16 G03H1/08

    摘要: A hologram reproduction method for reproducing a hologram from an optical recording medium in which the hologram is recorded by Fourier transforming a signal light, in which digital data is represented by an image of intensity distribution, and a reference light, and simultaneously irradiating the lights in a state in which a direct current component is removed from at least the Fourier transformed signal light onto the optical recording medium is provided. The method including: irradiating a read out reference light onto the optical recording medium, and generating a diffracted light from the recorded hologram; generating all or a part of a direct current component contained in a Fourier transformed image of the signal light; combining the diffracted light and the generated all or a part of the direct current component, and generating a combined beam; and reproducing the signal light by inverse-Fourier transforming the combined beam.

    摘要翻译: 一种全息图再现方法,用于通过对其中数字数据由强度分布的图像表示的信号光和参考光进行傅里叶变换来记录全息图的光记录介质中再现全息图,同时将 提供了将直流分量从至少傅里叶变换信号光去除到光记录介质上的状态。 该方法包括:将读出的参考光照射到光学记录介质上,并从记录的全息图产生衍射光; 产生包含在信号光的傅里叶变换图像中的直流分量的全部或一部分; 组合衍射光和产生的全部或一部分直流分量,并产生组合光束; 以及通过对组合光束进行傅里叶逆变换来再现信号光。