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Proceedings Paper

Split Lens Stadimeter For Submarine Periscope
Author(s): William MacRobbie
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Paper Abstract

A split-lens stadimeter is a range measuring device which uses one of a submarine periscope's relay lenses to determine the angle subtended by the target. The doublet relay lens is split on the diameter permitting the viewer to displace one of the two images of the target vertically. The lens displacement provides an analog voltage of the angle subtended by the target which is used along with target height to calculate the range of the target. In the infinity position, the lens performance must be equal to the other relay lenses in the system, so special design details and alignment procedures are necessary.

Paper Details

Date Published: 3 October 1983
PDF: 4 pages
Proc. SPIE 0389, Optical Systems Engineering III, (3 October 1983); doi: 10.1117/12.935021
Show Author Affiliations
William MacRobbie, Kollmorgen Corporation (United States)

Published in SPIE Proceedings Vol. 0389:
Optical Systems Engineering III
William H. Taylor, Editor(s)

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