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Optical Engineering

Theory and tradespace analysis of a reflective axial adaptive optical zoom system
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Paper Abstract

Optical zoom enables wide and narrow fields-of-view within a single optical system. Traditional zoom designs translate elements along the optical axis, a technique that is generally prohibitive for large diameter optics. Adaptive optical zoom (AOZ) alters system magnification via variable focal length elements, a technique that has the potential to facilitate zoom in large diameter systems. This paper details a novel optical theory developed to design AOZ systems. The developed theory modifies existing techniques for telescope objective design and third-order aberration determination to accommodate the additional degrees of freedom found with AOZ. The derived theory also enables a large-scale tradespace analysis, allowing optical design to begin from a broad perspective and optimize a particular design. Using the tradespace analysis, a Cassegrain AOZ objective with a 3.3Xzoom ratio is designed, demonstrating the capability and validity of the theory.

Paper Details

Date Published: 2 August 2012
PDF: 8 pages
Opt. Eng. 51(8) 083001 doi: 10.1117/1.OE.51.8.083001
Published in: Optical Engineering Volume 51, Issue 8
Show Author Affiliations
Matthew E. Jungwirth, Sandia National Labs. (United States)
David V. Wick, Sandia National Labs. (United States)
Eustace L. Dereniak, College of Optical Sciences, The Univ. of Arizona (United States)

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