Method and apparatus for providing optical anisotropy to polymeric film and optical anisotropic medium
    1.
    发明授权
    Method and apparatus for providing optical anisotropy to polymeric film and optical anisotropic medium 失效
    用于向聚合物膜和光学各向异性介质提供光学各向异性的方法和装置

    公开(公告)号:US06512085B1

    公开(公告)日:2003-01-28

    申请号:US09690589

    申请日:2000-10-18

    IPC分类号: C08F600

    CPC分类号: G02B5/3083

    摘要: A method of providing a polymeric film with optical anisotropy by applying a polarized light to a polymeric film is disclosed. In the method, a photoisomerizable group or a photoisomerizable molecule has a T (thermal) type photochromic property capable of being isomerized by a thermal back reaction after the isomerization by light. The method includes two successive steps, that is, a step of applying a polarized light to the polymeric film and a step of shutting off a polarized light and leaving the film as it is, and controls the temperature of the polymeric film for enhancing the orientation of the photoisomerizable group or the photoisomerizable molecule induced by the thermal back reaction. An apparatus for practicing the method and an optical anisotropic medium having the polymeric film with high optical anisotropy obtained by the method are also provided.

    摘要翻译: 公开了一种通过向聚合物膜施加偏振光来提供具有光学各向异性的聚合物膜的方法。 在该方法中,光可异构化基团或光可异构化分子具有在通过光异构化之后能够通过热反向反应异构化的T(热)型光致变色性质。 该方法包括两个连续的步骤,即将偏振光应用于聚合物膜的步骤以及关闭偏振光并离开膜的步骤,并控制聚合物膜的温度以增强取向 的光可异构化基团或由热反应诱导的光致异构化分子。 还提供了一种用于实施该方法的装置和具有通过该方法获得的具有高光学各向异性的聚合物膜的光学各向异性介质。

    Holographic recording method and filtering method
    2.
    发明授权
    Holographic recording method and filtering method 失效
    全息记录方法和过滤方法

    公开(公告)号:US06285474B1

    公开(公告)日:2001-09-04

    申请号:US09577842

    申请日:2000-05-25

    IPC分类号: G03H116

    CPC分类号: G03H1/00 G03H2222/31 G06K9/76

    摘要: A method and an apparatus capable of filtering based on desired spatial frequency characteristics without loss of Fourier spectrum frequency components, and of matched filtering of high recognition capability without losing functions of data recording and reconstruction as well as high-speed transmission and retrieval features and mass storage capacity characteristic of a holographic memory. Fourier transformed object light with 0° polarization of a target image is stored as a hologram using reference light having a spatial polarization distribution such that a daughter wavelet on scale m has 90° polarization. The hologram is retrieved using the Fourier transformed object light with 0° polarization. The hologram yields diffracted light in the form of a spatial frequency component which corresponds to scale m and is polarized 90° with respect to the other spatial frequency components. A polarizing element is used to extract only the spatial frequency component corresponding to scale m. Given reference light having a spatial polarization distribution in conformity with a shape of a spatial frequency filter, retrieval light of 0° polarization is applied for low-pass and high-pass filtering upon reconstruction.

    摘要翻译: 一种能够基于期望的空间频率特性进行滤波而不损失傅里叶谱频率分量的方法和装置,并且具有高识别能力的匹配滤波,而不失去数据记录和重建的功能,以及高速传输和检索特征和质量 全息存储器的存储容量特性。 使用具有空间极化分布的参考光,使得尺度为m的子小波具有90°偏振,将目标图像的0°偏振的傅里叶变换物体光存储为全息图。 使用具有0°极化的傅里叶变换的物体光来检索全息图。 全息图以空间频率分量的形式产生衍射光,其对应于刻度m并且相对于其它空间频率分量偏振90°。 偏振元件用于仅提取与刻度m对应的空间频率分量。 给定具有与空间频率滤波器的形状一致的空间极化分布的参考光,在重建时将0°偏振的检索光应用于低通和高通滤波。

    EXPOSURE APPARATUS, IMAGE FORMING APPARATUS, AND HOLOGRAM RECORDING APPARATUS
    6.
    发明申请
    EXPOSURE APPARATUS, IMAGE FORMING APPARATUS, AND HOLOGRAM RECORDING APPARATUS 有权
    曝光装置,图像形成装置和手持式记录装置

    公开(公告)号:US20110013156A1

    公开(公告)日:2011-01-20

    申请号:US12726599

    申请日:2010-03-18

    IPC分类号: G03B27/00 G02B5/32

    摘要: An exposure apparatus according to an exemplary embodiment of the invention includes a substrate in which plural light-emitting devices are arrayed one-dimensionally or two-dimensionally; and a hologram recording layer that is disposed on the substrate, plural holograms being recorded in the hologram recording layer by holographic interference between a first beam and a second beam such that a predetermined number of beam spots are disposed in the hologram recording layer in a predetermined array direction according to a portion of light-emitting devices, the portion of light-emitting devices being selected as emitters from the plural light-emitting devices, the beam spot being formed by a light beam of the second beam, the first beam passing through an optical path of diffusion light that passes through the emitter, the second beam passing through an optical path of convergent light that converges at a predetermined distance outside the optical path of the first beam.

    摘要翻译: 根据本发明的示例性实施例的曝光装置包括其中多个发光器件被一维或二维排列的衬底; 以及设置在基板上的全息图记录层,通过第一光束和第二光束之间的全息干涉将多个全息图记录在全息图记录层中,使得预定数量的光束点以预定的方式设置在全息图记录层中 根据发光装置的一部分的阵列方向,从多个发光装置中选择发光装置的发光部,所述光束点由第二光束的光束形成,第一光束通过 通过发射器的扩散光的光路,第二光束通过在第一光束的光路外的预定距离会聚的会聚光的光路。

    Data playback method and device for data recorded as a hologram
    8.
    发明授权
    Data playback method and device for data recorded as a hologram 有权
    数据回放方法和记录为全息图的数据的装置

    公开(公告)号:US07826324B2

    公开(公告)日:2010-11-02

    申请号:US11482166

    申请日:2006-07-07

    IPC分类号: G11B7/00 G03H1/16

    摘要: There is provided a data playback method including: acquiring first image data by illuminating reference light for reading onto an optical recording medium on which a hologram has been recorded by Fourier transforming and simultaneously illuminating reference light and signal light expressing digital data as a light-and-dark image, and detecting an inverse Fourier-transform image of diffracted light which is diffracted by the recorded hologram; acquiring second image data, which is a reversal image of the first image data, by generating combined light by combining the diffracted light and a dc component whose phase is different than a phase of a dc component of the signal light included in the diffracted light, and detecting an inverse Fourier-transform image of the combined light; and computing a difference in luminance for each pixel of the light-and-dark image, by carrying out computing processing by using the first and second image data.

    摘要翻译: 提供了一种数据播放方法,包括:通过用参考光照亮参考光,通过傅里叶变换将照射参考光照射到已经记录了全息图的光记录介质上并同时照亮表示数字数据的信号光作为光,并获取第一图像数据,以及 并且检测被所记录的全息图衍射的衍射光的逆傅里叶变换图像; 通过组合衍射光和相位不同于包含在衍射光中的信号光的直流分量的相位的直流分量来产生组合光来获取作为第一图像数据的反转图像的第二图像数据, 以及检测所述组合光的逆傅里叶变换图像; 以及通过使用第一和第二图像数据执行计算处理来计算亮 - 暗图像的每个像素的亮度差。