Actuators apply stresses to generate distortions counteracting undesired distortions in technique for adjusting curvature of large focusing mirror or lens. Motor-and-gear assemblies under remote control vary squeeze of ring clamp and push or pull of hollow shaft to make fine adjustments in curvature of mirror. Applicable to large astronomical-telescope mirrors with diameters of 60 cm or more.


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    Title :

    Adjusting Curvatures Of Large Mirrors And Lenses


    Contributors:

    Published in:

    Publication date :

    1992-09-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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