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Updated: May 24, 2025
A maneuver of the occultator, E, between the lamp and the mirror arrests the luminous rays of the source, or allows them to pass, and thus produces upon the clouds the dots and dashes of the conventional alphabet. Isolated Communication by Luminous Fascicles.
It is therefore possible with this arrangement, and by the use of the Morse alphabet, to establish an optical communication at a distance. A. Elliptical mirror. B. Arm of the same. C. Nut for fixing the mirror. D. Support of the mirror. E. Occultator. F. Support for same. G. Lever for maneuvering the occultator. I. Support of the occultator rod. J. Screw for fixing the mirror support.
The maneuver of the occultator brings the balloon out of darkness or plunges it thereinto again, and thus produces the signs necessary for aerial communication. These ingenious arrangements, which depend upon the state of the atmosphere, do not appear to have been imitated outside of the navy. The system of optical communication proposed by Capt.
K. Screw for fixing the support of the occultator rod. The apparatus shown in Figs. 21 and 22 permits of signaling in three ways: 1. Upon the Clouds. In this case the mirror, A, is removed, and the projector inclined above the horizon in such a way as to illuminate the clouds to as great a distance as possible.
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