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Updated: May 14, 2025
In the first, which one would use to look through the forest screen from the air, or in examining the interior of a Han ship or any opaque structure, the glow-spot is brought low, at only a tiny angle above the vision line, and the shield, of course, must be very carefully adjusted.
The essential parts of an ultroscope, then, are twin batteries with focal control and frequency control; an ultron shield, battery connected and adjustable, to intercept the direct rays from the "glow-spot," with an ordinary light-shield between it and the lens; and the lens itself, battery connected and with more or less telescopic elaboration.
"Distance" setting would be used, for instance, in surveying a valley beyond a hill or mountain; the glow-spot is thrown high to illuminate the entire scene. In the "normal" setting the foco rays are brought together close overhead, and illuminate the scene just as a lamp of super brilliancy would in the same position.
To look through a substance at an object, one has only to focus the glow-spot beyond the substance but on the near side of the object and slightly above it. A complete apparatus may be "set" for "penetrative," "distance" and "normal vision."
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