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Proceedings Paper

Aberrations: Their Effect On Off-Axis Beam Steering
Author(s): C. N. Walton; J A Lupo; S. K. Rogers
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Paper Abstract

The effect of aberrations on off-axis beam steering for multi-aperture systems was qualitatively investigated. A new expression analogous to Goodman's Thin Lens is proposed which shows the beam degradation that occurrs at angles (with respect to the optic axis) much greater than five degrees for a thin lens, and two degrees for a thick lens. This expression was then applied to three multi-aperture configurations as a way to correctly predict the field-of-view for various optical systems. Analytical predictions supported by computational and experimental results are included. Although the beam degradation as the field-of-view or field angle is increased has a dramatic effect on the image quality, the power loss as the field angle increases will be the major factor in the design of a system of this type.

Paper Details

Date Published: 13 June 1989
PDF: 8 pages
Proc. SPIE 1049, Recent Trends in Optical Systems Design and Computer Lens Design Workshop II, (13 June 1989); doi: 10.1117/12.951419
Show Author Affiliations
C. N. Walton, Air Force Institute of Technology (United States)
J A Lupo, Air Force Institute of Technology (United States)
S. K. Rogers, Air Force Institute of Technology (United States)


Published in SPIE Proceedings Vol. 1049:
Recent Trends in Optical Systems Design and Computer Lens Design Workshop II
Robert E. Fischer; Richard C. Juergens, Editor(s)

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