Electromagnetic shutter mechanism operates at ambient and cryogenic temperatures to shield optical element, such as mirror, filter, polarizer, beam splitter, or detector, from external light and radiation in cryogenic Dewar equipped with window for optical evaluation. Shutter mechanism in Dewar container alternately shields and exposes optical element as paddle rotates between mechanical stops. Mounted on cold plate of liquid-helium reservoir. Paddle, shaft, and magnet constitutes assembly rotated by electromagnetic field on coil.


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    Titel :

    Cryogenic Shutter Mechanism


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    1989-10-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Cryogenic Shutter

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    A Low Power Cryogenic Shutter Mechanism for use in Infrared Images

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    A Low Power Cryogenic Shutter Mechanism for Use in Infrared Imagers

    Schwinger, S. / Hakun, C. / United States | British Library Conference Proceedings | 2000


    GRILLE SHUTTER MECHANISM

    MATSUKI SHIGERU / UNO YUICHIRO | Europäisches Patentamt | 2018

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