To achieve the efficient, controllable, digital processing and high-precision detection of the high-caliber off-axis aspheric mirror, meeting the high-level development needs of the modern high-resolution, large field of space optical remote sensing camera, we carried out the research on high precision machining and testing technology of off-axis aspheric mirror. First, we forming the off-axis aspheric sample with diameter of 574mm × 302mm by milling it with milling machine, and then the intelligent robot equipment was used for off-axis aspheric high precision polishing. Surface detection of the sample will be proceed with the off-axis aspheric contact contour detection technology and offaxis non-spherical surface interference detection technology after its fine polishing using ion beam equipment. The final surface accuracy RMS is 12nm.


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    Title :

    High-precision processing and detection of the high-caliber off-axis aspheric mirror


    Contributors:
    Dai, Chen (author) / Li, Ang (author) / Xu, Lingdi (author) / Zhang, Yingjie (author)

    Conference:

    AOPC 2017: Space Optics and Earth Imaging and Space Navigation ; 2017 ; Beijing,China


    Published in:

    Proc. SPIE ; 10463


    Publication date :

    2017-10-24





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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