The invention provides, within a ship, a passive electro-optic device for providing a measurement of the range, together with a positively identifiable image, of an approaching ship or object, day or night, on a CRT, with the range displayed digitally on the CRT. The rangefinder capability provides a substitute or supplement to radar or active-gated laser beam rangefinders for collision avoidance and station-keeping. (Author)


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    Title :

    Passive Optical Rangefinder


    Contributors:
    S. Feldman (author) / G. G. Barton (author)

    Publication date :

    1975


    Size :

    7 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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