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Proceedings Paper

A High Performance Athermalised Dual Field Of View I.R. Telescope
Author(s): Philip M. Parr-Burman; Paul Madgwick
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Paper Abstract

Many infra-red applications require a dual field of view telescope. Wide angle (low magnification) for general surveillance and narrow angle (high magnification) for concentrating on areas of interest and in particular for target recognition. A typical need is for a telescope for an airborne system that has very high magnification, low weight, compact size and quick magnification change time, along with a military environmental specification. These requirements, together with the high optical performance necessary, results in systems with very tight lens positioning tolerances. The design approach to solving these problems is described.

Paper Details

Date Published: 13 April 1989
PDF: 10 pages
Proc. SPIE 1013, Optical Design Methods, Applications and Large Optics, (13 April 1989); doi: 10.1117/12.949366
Show Author Affiliations
Philip M. Parr-Burman, Pilkington P.E. Ltd. (United Kingdom)
Paul Madgwick, Pilkington P.E. Limited (United Kingdom)


Published in SPIE Proceedings Vol. 1013:
Optical Design Methods, Applications and Large Optics
Andre Masson; Joachim J. Schulte-in-den-Baeumen; Hannfried Zuegge, Editor(s)

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