A detailed description is given of a miniature line-target system that is illuminated by a radioactive source, collimated, and provided with suitable scales to indicate its position within the roll and pitch planes. These components are assembled in a lightweight, goggle that can be precisely positioned by means of a biteboard attachment. Uses of the goggle in the measurements of the perceived direction of space under ordinary assembled in a lightweight, goggle that can be precisely positioned by means of a biteboard attachment. Uses of the goggle in the measurements of the perceived direction of space under ordinary and extraordinary test conditions are illustrated. Modifications are suggested that can extend its usefulness. (Author)


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    Title :

    Goggle Device for Measuring the Visually Perceived Direction of Space


    Contributors:
    E. F. Miller (author) / A. Graybiel (author)

    Publication date :

    1971


    Size :

    6 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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