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公开(公告)号:WO2003083552A1
公开(公告)日:2003-10-09
申请号:PCT/US2003/008599
申请日:2003-03-19
申请人: RAYTHEON COMPANY
发明人: COOK, Lacy , WITHRINGTON, Roger
IPC分类号: G02B26/08
CPC分类号: G02B26/106 , G02B26/0808
摘要: A laser beam pointing and positioning system includes first and second rotatable diffraction gratings. Each grating deviates a laser beam by a predetermined angle of deviation. The relative rotational position of the gratings is controlled to change the beam steering angle and direction of a laser beam. A maximum beam steering angle of twice the angle of deviation may be achieved in any direction. The diffraction gratings may be etched on transmissive substrates of optical glass, sapphire, silicon (Si), Zinc Selenide (ZnSe), Zinc Sulfide (ZnS), or Germanium (Ge). The substrates may be positioned within rotary elements coupled respectively to electromechanical positional control elements to rotate the gratings.
摘要翻译: 激光束指向和定位系统包括第一和第二可旋转衍射光栅。 每个光栅将激光束偏离预定的偏差角。 控制光栅的相对旋转位置以改变激光束的光束转向角和方向。 可以在任何方向上实现两倍于偏差角度的最大光束转向角。 衍射光栅可以蚀刻在光学玻璃,蓝宝石,硅(Si),硒化锌(ZnSe),硫化锌(ZnS)或锗(Ge))的透射基板上。 基板可以被定位在分别耦合到机电位置控制元件的旋转元件内以旋转光栅。