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公开(公告)号：US5051571A
公开(公告)日：1991-09-24
申请号：US947569
申请日：1986-12-02
IPC分类号： G02B26/06
CPC分类号： G02B26/06
摘要： A cascaded adaptive optics system for correction of aberrations in a light beam. The system includes a plurality of spatial light modulators (SLMs) in a cascaded arrangement to provide an adaptive optics system characterized by wide range, rapid response, and high resolution. The spatial light modulators may be identical or have characteristics that are complementary in providing a combined output that advantageously corrects for aberrations. A conventional adaptive optics system such as a deformable mirror may be used as one or more of the SLMKs. Liquid crystal light valves (LCLVs) may be advantageously used as one or more of the SLMs in the invention. A single LCLV may be cascaded with itself in a multiple-pass configuration by means of suitable reflectors.
摘要翻译： 用于校正光束中的像差的级联自适应光学系统。 该系统包括多个级联布置的空间光调制器（SLM），以提供以宽范围，快速响应和高分辨率为特征的自适应光学系统。 空间光调制器可以是相同的或具有在提供有利地校正像差的组合输出时互补的特征。 诸如可变形反射镜的常规自适应光学系统可以用作SLMK中的一个或多个。 液晶光阀（LCLV）可以有利地用作本发明中的一个或多个SLM。 单个LCLV可以通过适当的反射器以多通道配置与其自身级联。
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公开(公告)号：US4044247A
公开(公告)日：1977-08-23
申请号：US641329
申请日：1975-12-16
申请人： Wilbur P. Brown, Jr.
发明人： Wilbur P. Brown, Jr.
摘要： This disclosure shows a technique used for obtaining high-resolution imagery at infra-red and optical wavelengths in the presence of atmospheric turbulence. The technique uses multi-channel signal processing. Squaring circuits are utilized to obtain the squared functions of the sum and difference frequencies, structured so as to avoid atmospheric turbulent effects upon received signals. This technique is suited for imaging of objects located above the turbulent boundary layer near the earth's surface.
摘要翻译： 本公开显示了用于在存在大气湍流的情况下获得红外和光波长的高分辨率图像的技术。 该技术采用多通道信号处理。 利用平方电路来获得和频和差频的平方函数，其结构是为了避免对接收信号的大气湍流影响。 该技术适用于位于地球表面附近湍流边界层上方的物体的成像。
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