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Proceedings Paper

Compact infrared zoom lens for the 3- to 5-um spectral band
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Paper Abstract

The results of a comprehensive design study for the development of a compact infrared zoom lens suitable for use in guided munitions are discussed. The continuously variable zoom of the lens offers significant operational performance benefits to weapon systems using fixed or switchable FOV optics. Two practical zoom lens systems were designed that showed potential to meet typical guided munitions system requirements by utilizing in the first system conventional surfaces and a combination of conventional and diffractive surfaces in the second system. Significant weight savings, enhanced optical performance, and excellent athermalization over conventional lenses were realized. The optical performance over the entire 4:1 zoom range and 5-20 degrees field-of-view is near-diffraction limit while maintaining a constant F-number.

Paper Details

Date Published: 27 June 1996
PDF: 12 pages
Proc. SPIE 2744, Infrared Technology and Applications XXII, (27 June 1996); doi: 10.1117/12.243463
Show Author Affiliations
R. Barry Johnson, Optical E.T.C., Inc. (United States)
Allen Mann, Optical E.T.C., Inc. (United States)
Patrick J. Reardon, Teledyne Brown Engineering (United States)
Bruce R. Peters, Teledyne Brown Engineering (United States)


Published in SPIE Proceedings Vol. 2744:
Infrared Technology and Applications XXII
Bjorn F. Andresen; Marija S. Scholl, Editor(s)

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