The combination of holographic metrology with endoscopic imaging allows the development of a new class of minute instruments for high-resolving, non-contactive, non-destructive intra-cavity measurements. New developments in micro-optics give main impulses to actual progress in holographic endoscopy: - Assembled gradient-index rod lenses are used for small submillimeter needle diameter rigid endoscopic instruments. - The use of (single-mode) optical fibers offers easy handling and flexibility. Especially, new single-mode imaging fiber bundles show improved performance data (high lateral resolution) at very small diameters. - The use of electro-optical crystals opens the possibility of developing a minute holographic storage device for an easy-to-handle, small holographic endoscopic camera system for in-situ recording, reconstruction and erasure with fast repetition rate.


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    Title :

    Micro-Optics In Holographic Endoscopy


    Contributors:
    von Bally, G. (author) / Dirksen, D. (author) / Zou, Y. (author) / Kraetzig, E. (author)

    Conference:

    Holographic Optics II: Principles and Applications ; 1989 ; Paris,France


    Published in:

    Publication date :

    1989-10-26





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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