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    Optical information device and optical information processing method
    2.
    发明授权
    Optical information device and optical information processing method 有权

    公开(公告)号：US10037775B2

    公开(公告)日：2018-07-31

    申请号：US15111534

    申请日：2014-01-29

    申请人： Hitachi Consumer Electronics Co., Ltd.

    发明人： Yukinobu Tanaka

    IPC分类号： G11B7/0065 ,  G03H1/22 ,  G11B7/1381 ,  G03H1/26 ,  G11B7/1353 ,  G11B7/0037

    CPC分类号： G11B7/0065 ,  G03H1/2205 ,  G03H1/2286 ,  G03H1/265 ,  G03H2001/2207 ,  G11B7/0037 ,  G11B7/1353 ,  G11B7/1381

    摘要： An optical information device and an optical information processing method which can perform high-speed and accurate positioning are provided. An optical information device which reproduces information from and/or records information on an optical information recording medium on which interference patterns between signal light and reference light are recorded as a hologram includes: an optical system which emits an optical beam; an aperture unit which passes at least a portion of reproduced light acquired when the optical beam from the optical system is radiated onto the optical information recording medium; a first detection unit which detects at least a portion of the reproduced light; a second detection unit which detects the position of the aperture unit; and a control unit which, based on a first signal acquired from the first detection unit and a second signal acquired from the second detection unit, controls the position of the aperture unit.

    Polytopic multiplex holography
    6.
    发明授权
    Polytopic multiplex holography 有权
    多面体多普勒全息术

    公开(公告)号：US07167286B2

    公开(公告)日：2007-01-23

    申请号：US11473119

    申请日：2006-06-23

    申请人： Kenneth E. Anderson ,  Kevin R. Curtis

    发明人： Kenneth E. Anderson ,  Kevin R. Curtis

    IPC分类号： G03H1/30

    CPC分类号： G11B7/00772 ,  G03H1/0248 ,  G03H1/202 ,  G03H1/2645 ,  G03H1/265 ,  G03H2001/2207 ,  G03H2001/2255 ,  G03H2223/21 ,  G03H2223/54 ,  G03H2223/55 ,  G11B7/0065 ,  G11B7/083

    摘要： Disclosed is a multiplexing method and apparatus that allows holograms to be spatially multiplexed with partial spatial overlap between neighboring stacks of holograms. Each individual stack can additionally take full advantage of an alternate multiplexing scheme such as angle, wavelength, phase code, peristrophic, or fractal multiplexing, for example. An amount equal to the beam waist of the signal beam writing a hologram separates individual stacks of holograms. Upon reconstruction, a hologram and its neighbors will all be readout simultaneously. An filter is placed at the beam waist of the reconstructed data such that the neighbors that are read out are not transmitted to the camera plane. Alternatively, these unwanted reconstructions can be filtered out with an angular filter at an intermediate plane in the optical system that has a limited angular passband.

    摘要翻译： 公开了一种复用方法和装置，其允许全息图与相邻的全息图堆叠之间的部分空间重叠进行空间复用。 每个单独的堆叠可以另外充分利用诸如角度，波长，相位代码，蠕动状态或分形多路复用的替代多路复用方案。 相当于写入全息图的信号光束的光束腰部的量分离各个全息图。 一旦重建，全息图及其邻居将全部被同时读出。 将滤波器放置在重构数据的波束腰部，使得读出的邻居不发送到相机平面。 或者，这些不需要的重建可以在具有有限角度通带的光学系统中的中间平面处用角度滤波器滤除。

    Polytopic multiplex holography
    7.
    发明申请
    Polytopic multiplex holography 有权

    公开(公告)号：US20060238841A1

    公开(公告)日：2006-10-26

    申请号：US11473119

    申请日：2006-06-23

    申请人： Kenneth Anderson ,  Kevin Curtis

    发明人： Kenneth Anderson ,  Kevin Curtis

    IPC分类号： G03H1/10

    CPC分类号： G11B7/00772 ,  G03H1/0248 ,  G03H1/202 ,  G03H1/2645 ,  G03H1/265 ,  G03H2001/2207 ,  G03H2001/2255 ,  G03H2223/21 ,  G03H2223/54 ,  G03H2223/55 ,  G11B7/0065 ,  G11B7/083

    摘要： Disclosed is a multiplexing method and apparatus that allows holograms to be spatially multiplexed with partial spatial overlap between neighboring stacks of holograms. Each individual stack can additionally take full advantage of an alternate multiplexing scheme such as angle, wavelength, phase code, peristrophic, or fractal multiplexing, for example. An amount equal to the beam waist of the signal beam writing a hologram separates individual stacks of holograms. Upon reconstruction, a hologram and its neighbors will all be readout simultaneously. An filter is placed at the beam waist of the reconstructed data such that the neighbors that are read out are not transmitted to the camera plane. Alternatively, these unwanted reconstructions can be filtered out with an angular filter at an intermediate plane in the optical system that has a limited angular passband.

    Ultrasonic holographic imaging apparatus having zoom feature
    8.
    发明授权
    Ultrasonic holographic imaging apparatus having zoom feature 失效
    超声波全息成像装置具有变焦功能

    公开(公告)号：US5212571A

    公开(公告)日：1993-05-18

    申请号：US796714

    申请日：1991-11-22

    申请人： George F. Garlick ,  Victor I. Neeley

    发明人： George F. Garlick ,  Victor I. Neeley

    IPC分类号： G01N29/04 ,  A61B8/00 ,  G01N29/06 ,  G03H3/00

    CPC分类号： G03H3/00 ,  G03H2001/0428 ,  G03H2001/2207 ,  Y10S359/901

    摘要： The preferred embodiment of this invention is illustrated in FIG. 2 showing an ultrasonic holographic imaging apparatus 50 having a multiple lens system 52 that is capable of providing both zoom and focus capability. The system 52 includes lens 54 and 56 that are independently mounted on lead screws 62 and 64 for movement relative to each other along an optical axis 57. The movement of the system is controlled by drive system 66 and 68 that have encoders 72 and 74 for accurately positioning the lens 54 and 56 relative to each other in response to signals from a microcontroller 76. The microcontroller 76 is operator controlled through control device 78 and 80 to provide both zoom capability and a focus capability.

    摘要翻译： 图1中示出了本发明的优选实施例。 图2示出了具有能够提供变焦和聚焦能力的多透镜系统52的超声全息成像设备50。 系统52包括透镜54和56，其独立地安装在导螺杆62和64上，以沿着光轴57相对于彼此移动。系统的运动由具有编码器72和74的驱动系统66和68控制， 响应于来自微控制器76的信号，相对于彼此精确地定位透镜54和56.微控制器76通过控制装置78和80进行操作者控制，以提供变焦能力和聚焦能力。