Computerized instrument measures effective focal lengths to 0.01 percent accuracy. Laser interferometers measure mirror angle and stage coordinate y in instrument for accurate measurment of focal properties of optical systems. Operates under computer control to measure effective focal length, focal surface shape, modulation transfer function, and astigmatism.


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    Title :

    Precise Measurement of Effective Focal Length


    Contributors:
    Wise, T. D. (author) / Young, J. B. (author)

    Published in:

    Publication date :

    1983-08-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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