This paper describes a method for measuring the radius of curvature of mirrors by measuring the size of the reflected image. The image is generated by a video camera, captured using an image grabber board and analyzed using custom software on a standard computer. The system is shown to be capable to higher resolution than the current SAE defined spherometer and capable of determining radius of curvature over a smaller area. The latter is particularly important in using the system for measuring aspheric mirrors.


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    Title :

    Measuring Curvature of Mirrors Using Image Analysis


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Congress & Exposition ; 1998



    Publication date :

    1998-02-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Measuring Curvature of Mirrors using Image Analysis

    Helder, D. J. / Society of Automotive Engineers | British Library Conference Proceedings | 1998


    Measuring curvature of mirrors using image analysis

    Helder,D.J. / Donnelly,US | Automotive engineering | 1998