January's launch of the Infrared Astronomical Satellite (IRS) put an imaging infrared telescope in space. Its subsequent performance gives after-the-fact justification for the choice of beryllium as the material for optics and structure. In this paper, we examine the IRAS pre-flight test data to uncover the causes for the projected diffraction limit of ten micrometers and we will show that there is reason to project a considerably shorter practical wavelength limit for future applications such as Shuttle Infrared Telescope (SIRTF).


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    Title :

    Cryogenic infrared imaging beryllium telescope for Infrared Astronomical Satellite (IRAS)


    Contributors:

    Conference:

    Optical Engineering for Cold Environments ; 1983 ; Arlington,United States


    Published in:

    Publication date :

    1983-09-22





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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