公开(公告)号：KR1020000002747A

公开(公告)日：2000-01-15

申请号：KR1019980023650

申请日：1998-06-23

Applicant: 대우전자주식회사

Inventor： 김근율

IPC: G03H1/00

CPC classification number: G03H1/04 ,  G03H1/18 ,  G03H2001/0224 ,  G03H2222/31 ,  G11B7/0065

Abstract: PURPOSE: A volume holographic digital storage system is provided to change a direction of a polarized light and to interfere with an object light and a reference light and to save an interference pattern of hologram data. CONSTITUTION: The volume holographic digital storage system comprises a space optical modulator(300) and a storage medium(400). In the space optical modulator(300), the object light of a first polarized light direction is modulated to page unit of the input data, and according to the input data, the space optical modulator irradiates an object light modulated to the first polarized light direction and an object light modulated to a second polarized light direction perpendicular to the first polarized light direction. In the storage medium(400), the interference pattern which is produced by the interference of the object light is saved.

Abstract translation: 目的：提供体积全息数字存储系统以改变偏振光的方向并干扰对象光和参考光并且保存全息图数据的干涉图案。 构成：体积全息数字存储系统包括空间光学调制器（300）和存储介质（400）。 在空间光学调制器（300）中，将第一偏振光方向的物体光调制为输入数据的页面单位，并且根据输入数据，空间光学调制器照射被调制为第一偏振光方向的物体 以及被调制到垂直于第一偏振光方向的第二偏振光方向的物体。 在存储介质（400）中，节省了由对象光的干涉而产生的干涉图案。

公开(公告)号：KR1020000001990A

公开(公告)日：2000-01-15

申请号：KR1019980022519

申请日：1998-06-16

Applicant: 대우전자주식회사

Inventor： 김근율

IPC: G11B7/0065 ,  G11B7/14

Abstract: PURPOSE: A playback device of a volume holographic digital storage system is provided to perform simultaneously a playback for a hologram data by storing a hologram data into a multitude of page units. CONSTITUTION: A playback device of a volume holographic digital storage system comprises: a horizontal Acousto Optical Device(AOD)(31); a circumference-shaped lens(34); a segment mirror(32); and a multitude of Charge Coupled Devices(CCD)(35,36,37). The horizontal AOD controls horizontally a playback reference beam. The circumference-shaped lens controls vertically the a playback reference beam. The segment mirror performs a playback for a hologram data into a multitude of page units. The multitude of CCDs converts the hologram data of page units to an electrical signal.

Abstract translation: 目的：提供体积全息数字存储系统的重放装置，通过将全息图数据存储为多页页面单元来同时执行全息图数据的重放。 构成：体积全息数字存储系统的回放装置包括：水平声光装置（AOD）（31）; 圆周状透镜（34）; 分段镜（32）; 和大量的电荷耦合器件（CCD）（35,36,37）。 水平AOD水平控制播放参考光束。 圆周透镜垂直控制重放参考光束。 分段镜对全息图数据进行多个页面单位的播放。 大量的CCD将页面单位的全息图数据转换为电信号。