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    Light controlling sheet and surface light source device
    1.
    发明申请
    Light controlling sheet and surface light source device 有权
    光控板和表面光源装置

    公开(公告)号：US20070076406A1

    公开(公告)日：2007-04-05

    申请号：US11522844

    申请日：2006-09-18

    Applicant: Daijiro Kodama ,  Masahiro Goto ,  Wataru Tokuhara

    Inventor： Daijiro Kodama ,  Masahiro Goto ,  Wataru Tokuhara

    IPC: G09F13/04

    CPC classification number: G02F1/133606 ,  G02F1/133604

    Abstract: A light controlling sheet 14 is provided in a surface light source device 10a including a light source portion 13a. The light controlling sheet 14 includes an outgoing light side lens portion 141a having multiple unit lenses 141 arranged to project toward the outgoing light side, and transparent portions 143 and reflecting portions 144 provided on the incident light side. The transparent portions 143 and the reflecting portions 144 are arranged alternately, and the transparent portions 143 comprise 40% to 60% of the total area of the light controlling sheet 14 when viewed form a direction orthogonal to the sheet surface 14S on the incident light side.

    Abstract translation: 光控制片14设置在包括光源部分13a的表面光源装置10a中。 光控制片14包括：出射光侧透镜部分141a，其具有布置成朝向出射光侧突出的多个单位透镜141;以及透明部分143和设置在入射光侧的反射部分144。 透明部分143和反射部分144交替布置，并且透明部分143包括光入射片14的总面积的40％至60％，当从与入射光上的片材表面14S正交的方向观察时 侧。

    Color hologram recording medium and process for fabricating the same
    4.
    发明授权
    Color hologram recording medium and process for fabricating the same 有权
    彩色全息记录介质及其制造方法

    公开(公告)号：US06529297B1

    公开(公告)日：2003-03-04

    申请号：US09448471

    申请日：1999-11-24

    Applicant: Daijiro Kodama

    Inventor： Daijiro Kodama

    IPC: G03H126

    CPC classification number: G03H1/26 ,  G03H1/0236 ,  G03H1/0248 ,  G03H1/181 ,  G03H1/202 ,  G03H1/24 ,  G03H1/28 ,  G03H2001/0415 ,  G03H2001/187 ,  G03H2001/2271 ,  G03H2001/2281 ,  G03H2210/20 ,  G03H2210/33 ,  G03H2222/18 ,  G03H2223/14 ,  G03H2260/12

    Abstract: A color hologram recording medium 2 includes volume hologram recording mediums 14R, 14G and 14B for diffracting light of wavelengths different from each other. Reconstruction patterns 1R, 1G and 1B of the volume hologram recording mediums 14R, 14G and 14B are recorded so that the reconstruction patterns 1R, 1G and 1B are reconstructed at reconstruction positions different from each other. Thus, the color hologram recording medium 2 can have a wide variety of designs and artistic characters that the recorded color reconstruction patterns vary depending on watched directions.

    Abstract translation: 彩色全息图记录介质2包括用于衍射彼此不同的波长的光的体积全息图记录介质14R，14G和14B。 记录体积全息图记录介质14R，14G和14B的重构图案1R，1G和1B，使得重建图案1R，1G和1B在彼此不同的重建位置被重建。 因此，彩色全息图记录介质2可以具有各种设计和艺术特征，所记录的颜色重建图案根据观看方向而变化。

    Volume hologram medium
    5.
    发明授权
    Volume hologram medium 有权
    体积全息图介质

    公开(公告)号：US08956786B2

    公开(公告)日：2015-02-17

    申请号：US11851088

    申请日：2007-09-06

    Applicant: Daijiro Kodama

    Inventor： Daijiro Kodama

    IPC: G03H1/04 ,  G03H1/02 ,  G03H1/00 ,  G03H1/18 ,  G03H1/22

    CPC classification number: G03H1/0248 ,  G03H1/0011 ,  G03H1/181 ,  G03H2001/0417 ,  G03H2001/187 ,  G03H2001/2231 ,  G03H2001/2263 ,  G03H2001/2268 ,  G03H2210/32 ,  G03H2210/55 ,  G03H2210/562 ,  G03H2223/12 ,  G03H2223/19

    Abstract: The invention is concerned with a volume hologram medium obtained by multiple recording of holograms, which is improved in terms of just only security for forgery prevention but also aesthetics. A volume hologram medium 29′ comprises a reflection hologram in which a stereoscopic image of a three-dimensional object and an image of a plane pattern of a mask plate are recorded by interference of the same reference light beams having the same angle of incidence and the same wavelength with object light beams having mutually different angles of incidence. The stereoscopic image of the three-dimensional object is reconstructed in the form of diffracted light 31 in a singlecolor and in angle relations close to recording conditions, and the image of a plane pattern of the mask plate is reconstructed as diffracted light 32b, 32′b at various angles of incidence of white illumination light 30 and in different colors depending on those angles of incidence. Thus, more improved aesthetics are achievable, and more enhanced security is ensured by determination of whether or not the volume hologram medium has such aesthetic properties.

    Abstract translation: 本发明涉及通过多次记录全息图获得的体积全息图介质，其仅仅在防伪方面的安全性方面得到改进，但是也是美观的。 体积全息图介质29'包括反射全息图，其中通过具有相同入射角的相同参考光束的干涉来记录三维物体的立体图像和掩模板的平面图案的图像， 具有相互不同的入射角的物体光束相同的波长。 三维物体的立体图像以接近记录条件的单色和角度关系以衍射光31的形式被重建，并且掩模板的平面图案的图像被重构为衍射光32b，32' b以白色照明光30的不同入射角度，并以不同的颜色取决于这些入射角。 因此，可以实现更好的美观性，并且通过确定体积全息图介质是否具有这样的美学特性来确保更加增强的安全性。

    Optical diffusing sheet, optical deflecting sheet, and transmission type screen
    7.
    发明授权
    Optical diffusing sheet, optical deflecting sheet, and transmission type screen 有权
    光扩散片，光学偏转片和透射型屏

    公开(公告)号：US07885003B2

    公开(公告)日：2011-02-08

    申请号：US11575613

    申请日：2006-01-11

    Applicant: Daijiro Kodama ,  Tsuyoshi Kashiwagi ,  Kei Kato

    Inventor： Daijiro Kodama ,  Tsuyoshi Kashiwagi ,  Kei Kato

    IPC: G03B21/60

    CPC classification number: G03B21/625 ,  G02B5/0242 ,  G02B5/0278

    Abstract: An optical diffusing sheet is provided, which prevents deterioration in image quality which might result from warping of the sheets due to environmental changes, and is capable of, even if a substrate is broken by an accident, preventing scattering of pieces of the broken substrate. An optical diffusing sheet is used in a transmission type screen that emits imaging light projected from an incident side to an emergent side. The optical diffusing sheet includes a highly rigid substrate layer with a light-transmissibility and a high rigidity, and a plurality of layers laminated on the highly rigid substrate layer. The plurality of layers includes at least a pair of anti-scattering layers disposed on opposite sides of the highly rigid substrate layer for preventing scattering of the highly rigid substrate layer. At least one layer of the two or more layers includes an optical diffusing element that diffuses imaging light.

    Abstract translation: 提供了一种光学漫射片，其防止由于环境变化而导致的片材翘曲导致的图像质量的劣化，并且即使基板被意外破坏，也能够防止破碎的基板的碎片的散射。 在从入射侧投射到出射侧的成像光的透射型屏幕中使用光漫射片。 光漫射片包括具有透光性和高刚性的高刚性基底层，以及层叠在高刚性基底层上的多层。 多个层包括至少一对防散射层，其设置在高刚性基底层的相对侧上，以防止高刚性基底层的飞散。 两层或更多层的至少一层包括扩散成像光的光学漫射元件。

    Hologram recording film with additional information and recording method therefor
    8.
    发明授权
    Hologram recording film with additional information and recording method therefor 有权
    全息录音带附加信息及录像方式

    公开(公告)号：US07804633B2

    公开(公告)日：2010-09-28

    申请号：US10197268

    申请日：2002-07-18

    Applicant: Tsuyoshi Kashiwagi ,  Daijiro Kodama

    Inventor： Tsuyoshi Kashiwagi ,  Daijiro Kodama

    IPC: G03H1/22 ,  G03H1/04

    CPC classification number: G03H1/24 ,  G03H1/0248 ,  G03H1/2249 ,  G03H2001/0415 ,  G03H2001/0417 ,  G03H2001/2231 ,  G03H2001/2257 ,  G03H2001/2263 ,  G03H2001/2278 ,  G03H2001/2281 ,  G03H2210/32 ,  G03H2210/54 ,  G03H2210/562 ,  G03H2250/34 ,  G03H2260/12

    Abstract: A hologram recording film has an image of a three-dimensional object, e.g. a three-dimensional model, recorded in a volume hologram photosensitive material and further has a hologram image of a plane color pattern, e.g. a character or an image, together with the shadow of the color pattern, recorded as individual information in a superimposed manner in the same photosensitive material without using a liquid crystal display. Pieces of plane additional information of the same pattern have been recorded so as to be capable of being reconstructed simultaneously in a hologram plane and in front of or behind the hologram plane, respectively, in superimposition with a reconstructed image from a volume hologram.

    Abstract translation: 全息记录膜具有例如三维物体的图像。 记录在体积全息图感光材料中的三维模型，并且还具有平面颜色图案的全息图像，例如， 与彩色图案的阴影一起，将字符或图像以重叠的方式记录在相同的感光材料中，而不使用液晶显示器。 已经记录了相同图案的平面附加信息的片段，以便能够在全息图平面中以及全息图平面前面或后面分别与来自体积全息图的重建图像重叠地同时重建。

    OPTICAL MEMBER, SURFACE LIGHT UNIT, AND LIQUID CRYSTAL DISPLAY
    9.
    发明申请
    OPTICAL MEMBER, SURFACE LIGHT UNIT, AND LIQUID CRYSTAL DISPLAY 有权
    光学元件，表面光单元和液晶显示器

    公开(公告)号：US20080225200A1

    公开(公告)日：2008-09-18

    申请号：US12043983

    申请日：2008-03-07

    Applicant: Masahiro Goto ,  Daijiro Kodama

    Inventor： Masahiro Goto ,  Daijiro Kodama

    IPC: G02F1/13357 ,  F21V5/04 ,  G02B27/12

    CPC classification number: G02F1/133606 ,  G02F1/133608 ,  G02F2001/133607

    Abstract: An optical member that will be incorporated in a surface light source unit and that is scarcely deformed while it is used as a component of the surface light source unit. The optical member comprises optical sheets layered on each other. The optical sheets at least includes: an outermost optical sheet on the light-entrance side, which is situated outermost on the light-entrance side; and a high-rigidity optical sheet situated on the light-exit side of the outermost optical sheet on the light-entrance side, a rigidity of the high-rigidity optical sheet being higher than a rigidity of the outermost optical sheet on the light-entrance side.

    Abstract translation: 将被包含在表面光源单元中并且在用作表面光源单元的部件时几乎不变形的光学构件。 光学构件包括彼此层叠的光学片。 光学片至少包括：位于光入射侧最外侧的光入射侧的最外侧的光学片; 以及位于光入射侧的最外侧光学片的光出射侧的高刚性光学片，高刚性光学片的刚性高于光入射侧的最外侧光学片的刚性 侧。

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