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Wide-field Fizeau imaging telescope: experimental results

机译：广角菲索成像望远镜：实验结果

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摘要

A nine-aperture, wide-field Fizeau imaging telescope has been built at the Lockheed-Martin Advanced Technology Center. The telescope consists of nine, 125 mm diameter collector telescopes coherently phased and combined to form a diffraction-limited image with a resolution that is consistent with the 610 mm diameter of the telescope. The phased field of view of the array is 1 (mu)rad. The measured rms wavefront error is 0.08 waves rms at 635 nm. The telescope is actively controlled to correct for tilt and phasing errors. The control sensing technique is the method known as phase diversity, which extracts wavefront information from a pair of focused and defocused images. The optical design of the telescope and typical performance results are described.
机译：洛克希德·马丁先进技术中心已经建造了一个九孔大视野的菲索成像望远镜。该望远镜由九个直径为125 mm的集光望远镜相干相接并组合在一起，以形成衍射极限图像，其分辨率与望远镜的610 mm直径一致。阵列的相视场为1μra​​d。在635 nm处测得的均方根波前误差为0.08个均方根波。主动控制望远镜以校正倾斜和相位误差。控制感测技术是称为相位分集的方法，该方法从一对聚焦和散焦图像中提取波前信息。描述了望远镜的光学设计和典型性能结果。

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