This paper proposes a new structure of variable-focus lens aimed at 1 kHz bandwidth. Two kinds of prototypes are developed to validate the structure. The 1 kHz bandwidth is confirmed by the frequency response measurements. One prototype is applied to the axial high-speed scan of a confocal laser scanning microscope. Depth information measurements of a microscopic object in 1 ms and automated focusing to keep the focus on a randomly moving object are successfully achieved.


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    Title :

    A variable-focus lens with 1 kHz bandwidth applied to axial-scan of a confocal scanning microscope


    Contributors:
    Oku, H. (author) / Ishikawa, M. (author)


    Publication date :

    2003-01-01


    Size :

    143725 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English





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