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    • 5. 发明申请
    • HOLOGRAPHIC INFORMATION RECORDING AND/OR REPRODUCING APPARATUS
    • 全息信息记录和/或复制设备
    • US20090168629A1
    • 2009-07-02
    • US12233066
    • 2008-09-18
    • Jae-cheol BAETaek-seong JeongTae-Kyung KimDa-hye Chol
    • Jae-cheol BAETaek-seong JeongTae-Kyung KimDa-hye Chol
    • G11B7/00
    • G11B7/00781G11B7/0065
    • A holographic information recording and/or reproducing apparatus including: a light source unit emitting reference light and signal light; a first optical path guiding unit guiding the lights to cross; a second optical path guiding unit including a first polarization converter located on an optical path of one of the reference and signal lights, a first polarization beam splitter located at a crossing point of the reference light and the signal light, an optical path converter guiding the reference light and the signal light so that they cross again, a second polarization converter located on an optical path of the signal light before the signal light crosses the reference light, and a second polarization beam splitter uniting the optical paths of the reference light and the signal light; and an objective lens unit illuminating the reference light and the signal light onto one side of a holographic information storage medium.
    • 一种全息信息记录和/或再现装置,包括:发射参考光和信号光的光源单元; 引导灯交叉的第一光路引导单元; 第二光路引导单元,其包括位于参考信号光和信号光之一的光路上的第一偏振转换器,位于参考光和信号光的交叉点处的第一偏振分束器,引导 参考光和信号光使得它们再次交叉,位于信号光穿过参考光之前的信号光的光路上的第二偏振转换器,以及将参考光的光路和 信号灯; 以及将参考光和信号光照射到全息信息存储介质的一侧上的物镜单元。
    • 6. 发明授权
    • Holographic information recording and/or reproducing apparatus
    • 全息信息记录和/或再现装置
    • US08018813B2
    • 2011-09-13
    • US12233066
    • 2008-09-18
    • Jae-cheol BaeTaek-seong JeongTae-kyung KimDa-hye Chol
    • Jae-cheol BaeTaek-seong JeongTae-kyung KimDa-hye Chol
    • G11B7/00G03H1/00
    • G11B7/00781G11B7/0065
    • A holographic information recording and/or reproducing apparatus including: a light source unit emitting reference light and signal light; a first optical path guiding unit guiding the lights to cross; a second optical path guiding unit including a first polarization converter located on an optical path of one of the reference and signal lights, a first polarization beam splitter located at a crossing point of the reference light and the signal light, an optical path converter guiding the reference light and the signal light so that they cross again, a second polarization converter located on an optical path of the signal light before the signal light crosses the reference light, and a second polarization beam splitter uniting the optical paths of the reference light and the signal light; and an objective lens unit illuminating the reference light and the signal light onto one side of a holographic information storage medium.
    • 一种全息信息记录和/或再现装置,包括:发射参考光和信号光的光源单元; 引导灯交叉的第一光路引导单元; 第二光路引导单元,其包括位于参考信号光和信号光之一的光路上的第一偏振转换器,位于参考光和信号光的交叉点处的第一偏振分束器,引导 参考光和信号光使得它们再次交叉,位于信号光穿过参考光之前的信号光的光路上的第二偏振转换器,以及将参考光的光路和 信号灯; 以及将参考光和信号光照射到全息信息存储介质的一侧上的物镜单元。
    • 8. 发明申请
    • HOLOGRAPHIC RECORDING/REPRODUCING APPARATUS
    • 全景记录/再现设备
    • US20080316557A1
    • 2008-12-25
    • US11961052
    • 2007-12-20
    • Taek-seong JeongMoon-il Jung
    • Taek-seong JeongMoon-il Jung
    • G03H1/12
    • G03H1/28G03H1/0408G03H1/265
    • A holographic recording/reproducing apparatus that easily controls an incident angle of a reference beam and that is less sensitive to a tilt of a holographic recording medium, the holographic recording/reproducing apparatus including: a light source to emit a light; and an optical system to divide the emitted light into a reference beam and a signal beam, and to provide the reference beam and the signal beam to the holographic recording medium, wherein the optical system provides the signal beam to be incident on an upper surface of the holographic recording medium, and provides the reference beam to be guided along the inside of the holographic recording medium by reflection due to a refraction index difference between the holographic recording medium and the outside of the holographic recording medium.
    • 一种全息记录/再现装置,其易于控制参考光束的入射角,并且对全息记录介质的倾斜不太敏感,全息记录/再现装置包括:发光的光源; 以及用于将发射的光分成参考光束和信号光束并将参考光束和信号光束提供给全息记录介质的光学系统,其中光学系统提供信号光束入射到全息记录介质的上表面 全息记录介质,并且通过由于全息记录介质和全息记录介质的外部之间的折射率差引起的反射,提供将沿着全息记录介质的内部引导的参考光束。