知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

111 条记录 (耗时 0.024 秒)

    IMAGE DISPLAY DEVICE
    1.
    发明公开
    IMAGE DISPLAY DEVICE 审中-公开

    公开(公告)号：US20240019810A1

    公开(公告)日：2024-01-18

    申请号：US18476500

    申请日：2023-09-28

    申请人： FUJIFILM Corporation

    发明人： Megumi SEKIGUCHI ,  Naoyoshi YAMADA ,  Takehiro KASAHARA ,  Yukito SAITOH ,  Ryoji HIMENO ,  Makoto KAMO

    IPC分类号： G03H1/00 ,  G06F3/01 ,  G03H1/04

    CPC分类号： G03H1/0005 ,  G06F3/013 ,  G03H1/0406

    摘要： An object of the present invention is to provide an image display device capable of easily detecting an eye gaze. The object is achieved by providing an image display optical system; an infrared light source that irradiates an eyeball of a user with infrared light; a hologram element that transmits infrared light emitted by the infrared light source and reflected by the eyeball of the user; and an infrared light image sensor that images infrared light transmitted through the hologram element, in which the hologram element acts on infrared light without acting on visible light and emits reproduced infrared light with an intensity distribution in a plane direction corresponding to an eye gaze of the user.

    PHASE MASK AND HOLOGRAPHIC RECORDING APPARATUS EMPLOYING THE SAME
    5.
    发明申请
    PHASE MASK AND HOLOGRAPHIC RECORDING APPARATUS EMPLOYING THE SAME 审中-公开
    使用相同的屏蔽和全息记录设备

    公开(公告)号：US20140055830A1

    公开(公告)日：2014-02-27

    申请号：US14010858

    申请日：2013-08-27

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Kyoung-seok PYUN ,  Alexander MOROZOV ,  Chil-sung CHOI

    IPC分类号： G03H1/04 ,  G02B5/32 ,  G02B5/30

    CPC分类号： G03H1/041 ,  G02B5/3083 ,  G02B5/32 ,  G02B27/1093 ,  G02B27/4238 ,  G02B27/4272 ,  G03H1/0406 ,  G03H1/0476 ,  G03H1/0486 ,  G03H2001/0415 ,  G03H2001/2695 ,  G03H2210/22 ,  G03H2222/44 ,  G03H2223/13 ,  G03H2223/16

    摘要： A phase mask includes a phase modulation layer that modulates a phase of different portions of incident light, differently, such that a different optical phase delay, in a range between 0 and 2π is imparted to different portions of the incident light. A hologram recording apparatus includes a light source; a signal beam optical system that divides a beam emitted from the light source into a reference beam and a signal beam, modulates the signal beam according to hologram pixel information, and radiates the signal beam onto a hologram recording medium. The signal beam optical system includes the phase mask. The hologram recording apparatus also includes a reference beam optical system that radiates the reference beam onto the hologram recording medium.

    摘要翻译： 相位掩模包括调制入射光的不同部分的相位的相位调制层，不同之处在于，使入射光的不同部分在0和2pi之间的范围内的不同的光学相位延迟。 全息记录装置包括光源; 将从光源发射的光束分割为参考光束和信号光束的信号光束光学系统，根据全息图像素信息调制信号光束，并将信号光束照射到全息图记录介质上。 信号光束光学系统包括相位掩模。 全息记录装置还包括将参考光束照射到全息图记录介质上的参考光束光学系统。

    Hybrid reflection hologram
    7.
    发明授权
    Hybrid reflection hologram 有权
    混合反射全息图

    公开(公告)号：US08482830B2

    公开(公告)日：2013-07-09

    申请号：US13284766

    申请日：2011-10-28

    申请人： Ken R. Harris

    发明人： Ken R. Harris

    IPC分类号： G03H1/20 ,  G03H1/24

    CPC分类号： G03H1/0248 ,  G03H1/0011 ,  G03H1/0236 ,  G03H1/0406 ,  G03H1/0408 ,  G03H1/0465 ,  G03H1/202 ,  G03H1/24 ,  G03H2001/0417 ,  G03H2001/205 ,  G03H2001/207 ,  G03H2001/2231 ,  G03H2210/46 ,  G03H2210/54 ,  G03H2210/562 ,  G03H2222/36 ,  G03H2227/04 ,  G03H2240/52

    摘要： Hybrid white-light viewable holograms and methods for making them. The holograms are hybrid reflection holograms made using the diffractive structures or gratings of a holographic object such as a transmission hologram or holographic optical element (HOE). The wavefronts of the diffractive structures are converted into a reflection hologram by scanning them with a coherent light source having a profiled narrow beam. The hybrid reflection hologram can exhibit display parameters including the multiple colors, solidity, and color stability of white light reflection holograms, the diffractive color shifting of a white light transmission hologram, three dimensional imaging and a wide variety of dynamic changes. Different areas or images with each of these effects can be combined in a single hologram. These hybrid reflection holograms are ideal for security and forgery prevention applications.

    摘要翻译： 混合白光可见全息图及其制作方法。 全息图是使用诸如透射全息图或全息光学元件（HOE）的全息物体的衍射结构或光栅制成的混合反射全息图。 通过用具有异型窄光束的相干光源对它们进行扫描，将衍射结构的波前转换为反射全息图。 混合反射全息图可以显示包括白光反射全息图的多种颜色，坚固性和颜色稳定性，白光透射全息图的衍射色移，三维成像和各种动态变化的显示参数。 具有这些效果的不同区域或图像可以组合在单个全息图中。 这些混合反射全息图是安全和防伪应用的理想选择。

    Recording multiple spatially-heterodyned direct to digital holograms in one digital image
    8.
    发明授权
    Recording multiple spatially-heterodyned direct to digital holograms in one digital image 有权
    在一个数字图像中记录多个空间外差的直接数字全息图

    公开(公告)号：US07349100B2

    公开(公告)日：2008-03-25

    申请号：US10607824

    申请日：2003-06-27

    申请人： Gregory R. Hanson ,  Philip R. Bingham

    发明人： Gregory R. Hanson ,  Philip R. Bingham

    IPC分类号： G01B9/02

    CPC分类号： G03H1/0406 ,  G03H1/0443 ,  G03H1/0866 ,  G03H1/265 ,  G03H1/28 ,  G03H2001/0456 ,  G03H2001/046 ,  G03H2001/0469 ,  G03H2226/11 ,  G03H2226/13

    摘要： Systems and methods are described for recording multiple spatially-heterodyned direct to digital holograms in one digital image. A method includes digitally recording, at a first reference beam-object beam angle, a first spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded first spatially-heterodyned hologram by shifting a first original origin of the recorded first spatially-heterodyned hologram to sit on top of a first spatial-heterodyne carrier frequency defined by the first reference beam-object beam angle; digitally recording, at a second reference beam-object beam angle, a second spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded second spatially-heterodyned hologram by shifting a second original origin of the recorded second spatially-heterodyned hologram to sit on top of a second spatial-heterodyne carrier frequency defined by the second reference beam-object beam angle; applying a first digital filter to cut off signals around the first original origin and define a first result; performing a first inverse Fourier transform on the first result; applying a second digital filter to cut off signals around the second original origin and define a second result; and performing a second inverse Fourier transform on the second result, wherein the first reference beam-object beam angle is not equal to the second reference beam-object beam angle and a single digital image includes both the first spatially-heterodyned hologram and the second spatially-heterodyned hologram.

    摘要翻译： 描述了用于在一个数字图像中记录多个空间外差直接数字全息图的系统和方法。 一种方法包括以第一参考光束对象光束角度数字地记录包括用于傅立叶分析的空间外差条纹的第一空间外差全息图; 通过将所记录的第一空间外差全息图的第一原始原点移位以位于由第一参考光束 - 物体光束角度限定的第一空间 - 外差载波频率的顶部上，傅里叶分析所记录的第一空间外差全息图; 以第二参考光束 - 物体光束角数字地记录包括用于傅立叶分析的空间外差条纹的第二空间外差全息图; 通过将所记录的第二空间外差全息图的第二原始原点移动到位于由第二参考光束 - 物体光束角度限定的第二空间 - 外差载波频率的顶部上来傅立叶分析所记录的第二空间外差全息图; 应用第一数字滤波器来切断围绕第一原始原点的信号并且定义第一结果; 对所述第一结果执行第一逆傅里叶变换; 施加第二数字滤波器以切断围绕第二原始原点的信号并限定第二结果; 以及对所述第二结果执行第二傅立叶逆变换，其中所述第一参考光束对象光束角度不等于所述第二参考光束对象光束角度，并且单个数字图像包括所述第一空间外差全息图和所述第二空间对象光束角度 - 全息全息图。