Magnetically-focused electronographic cameras have been under development at the Naval Research Laboratory for use in far-ultraviolet imagery and spectrography, primarily in astronomical and optical-geophysical observations from sounding rockets and space vehicles. Most of this work has been with cameras incorporating internal optics of the Schmidt or wide-field all-reflecting types. More recently, we have begun development of electronographic spectrographs incorporating an internal concave grating, operating at normal or grazing incidence. We also are developing electronographic image tubes of the conventional end-window-photo-cathode type, for far-ultraviolet imagery at the focus of a large space telescope, with image formats up to 120 mm in diameter.


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    Titel :

    Electronographic cameras for space astronomy.


    Beteiligte:
    Carruthers, G. R. (Autor:in) / Opal, C. B. (Autor:in)

    Kongress:

    Seminar-in-Depth on Instrumentation in astronomy ; 1972 ; Tucson, AZ


    Erscheinungsdatum :

    01.01.1972


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




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