Biocular Magnifiers For Use With Cathode Ray Tube (CRT) Displays

Philip J. Rogers

doi:10.1117/12.934352

16 June 1983 Biocular Magnifiers For Use With Cathode Ray Tube (CRT) Displays

Philip J. Rogers

Proceedings Volume 0369, Max Born Centenary Conf; (1983) https://doi.org/10.1117/12.934352
Event: The Max Born Centenary Conference, 1982, Edinburgh, United Kingdom

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.

Citation Download Citation

Philip J. Rogers "Biocular Magnifiers For Use With Cathode Ray Tube (CRT) Displays", Proc. SPIE 0369, Max Born Centenary Conf, (16 June 1983); https://doi.org/10.1117/12.934352

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