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Proceedings Paper

Biocular Magnifiers For Use With Cathode Ray Tube (CRT) Displays
Author(s): Philip J. Rogers
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Paper Abstract

Biocular magnifiers are in widespread use in night vision equipment. These bioculars, used to view the outputs of image intensifier tubes, are typically of x5 magnification. This magnification, and consequent upper limit on biocular diameter, has precluded their use for applications such as the relaxed viewing of CRT displays. Conventional glass bioculars scaled-up in diameter could be used to magnify. small CRTs but would, have no size or cost advantage relative to a large diameter CRT. Recently, however, large diameter but compact biocular magnifiers have been designed, using inexpensive and lightweight optical components such as plastic aspheric and Fresnel lenses. The following describes these designs and exawines their characteristics.

Paper Details

Date Published: 16 June 1983
PDF: 8 pages
Proc. SPIE 0369, Max Born Centenary Conf, (16 June 1983); doi: 10.1117/12.934352
Show Author Affiliations
Philip J. Rogers, Pilkington P.E. Limited (United Kingdom)


Published in SPIE Proceedings Vol. 0369:
Max Born Centenary Conf
M. John Colles; D. William Swift, Editor(s)

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