Periscope apparatus comprising a single inverted pyramid
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United States of America Patent
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-
Aug 16, 1988
Grant Date -
N/A
app pub date -
Sep 26, 1986
filing date -
Sep 28, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A periscope head (10) is formed by a hollow structure of inverted pyramidal form connected to the periscope mast in the vicinity of the apex of the pyramidal form. The exterior surfaces (11, 12) of the head (10) are highly reflective and are substantially planar and they include a window (13) for transmission of radiation to an optical device within the head (10). The geometry and reflectivity of the head (10) render it relatively indistinguishable, in use, from the surrounding sea.
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Cited Art Landscape
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