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13 April 1989 A High Performance Athermalised Dual Field Of View I.R. Telescope
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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.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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