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    facet.materialart.
    Unknown
    Development of the design of a between-the-lens band type photographic shutter (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: When photographic equipment is miniaturized, in order to conserve weight and size for spacecraft use, by using wide angle, short focus lenses, a band-type central between-the-lens shutter must be used. The rectangular slot shape was the form with the highest optical efficiency. To overcome the problem of burrs caused in the punching out of the slots in a carbon steel band, a shape limited by arcs with radius equal to half the slot width is preferred.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Equipment for Space Res. (NASA-TT-F-785); p 42-47
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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