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    • 3. 发明申请
    • Ultra-High Resolution Digital Holographic Camera
    • 超高分辨率数字全息相机
    • US20150268630A1
    • 2015-09-24
    • US13908758
    • 2013-06-03
    • Medhat Azzazy
    • Medhat Azzazy
    • G03H1/04G02B27/09G03H1/00G03H1/14
    • G03H1/0443G02B27/0927G02B27/0944G03H1/0005G03H1/0465G03H2001/0436G03H2001/0458G03H2001/266G03H2210/63G03H2222/13
    • A high resolution holographic imaging system. A laser illuminator is configured to operate in two or more wavelengths sequentially and a phase modulator element configured to operate at three or more phase positions. The illumination beam is split into two parts and propagated into optically diffractive elements to define “top hat” signals from the received Gaussian signals. One beam is directed onto a target area scene of interest and one beam is directed to an optical phase modulator element. The two beams are combined on an electronic imaging element for three phase positions of the phase modulator. The laser wavelength is shifted slightly and operation repeats. The data frames are digitized and a data processing unit implemented to calculate the complex amplitude and perform reconstruction of the image.
    • 高分辨率全息成像系统。 激光照明器被配置为顺序地以两个或更多个波长工作,并且相位调制器元件被配置为在三个或更多个相位位置操作。 照明光束被分成两部分,并传播到光学衍射元件中以从接收的高斯信号中定义“顶帽”信号。 一个光束被引导到感兴趣的目标区域场景上,并且一个光束被引导到光学相位调制器元件。 两个光束组合在电子成像元件上用于相位调制器的三相位置。 激光波长略微移动,重复操作。 数据帧被数字化,并且实现了用于计算复数幅度并执行图像的重建的数据处理单元。