A High Performance Athermalised Dual Field Of View I.R. Telescope

Philip M. Parr-Burman; Paul Madgwick

doi:10.1117/12.949366

13 April 1989 A High Performance Athermalised Dual Field Of View I.R. Telescope

Philip M. Parr-Burman, Paul Madgwick

Proceedings Volume 1013, Optical Design Methods, Applications and Large Optics; (1989) https://doi.org/10.1117/12.949366
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

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.

Citation Download Citation

Philip M. Parr-Burman and Paul Madgwick "A High Performance Athermalised Dual Field Of View I.R. Telescope", Proc. SPIE 1013, Optical Design Methods, Applications and Large Optics, (13 April 1989); https://doi.org/10.1117/12.949366

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