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Proceedings Paper

Mid-spatial frequency matters: examples of the control of the power spectral density and what that means to the performance of imaging systems
Author(s): Tony Hull; Michael J. Riso; John M. Barentine; Adam Magruder
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Paper Abstract

We will discuss mid-spatial frequency (MSF) optical surface errors, and how they affect optical performance of an optical system, including contrast, ensquared energy and pixel cross-talk. MSF errors will be represented in terms of Power Spectral Density (PSD), and examples will be discussed where PSD is well controlled and poorly controlled. We will show recent examples of PSDs of aspheric mirrors, sometimes with very challenging aspheric departure or other attributes, as routinely finished Tinsley, and suggest ways the designer can effectively specify an optic for smoothness.

Paper Details

Date Published: 31 May 2012
PDF: 17 pages
Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 835329 (31 May 2012); doi: 10.1117/12.921097
Show Author Affiliations
Tony Hull, L-3 Integrated Optical Systems Division (United States)
The Univ. of New Mexico (United States)
Michael J. Riso, L-3 Integrated Optical Systems Division (United States)
John M. Barentine, L-3 Integrated Optical Systems Division (United States)
Adam Magruder, L-3 Integrated Optical Systems Division (United States)


Published in SPIE Proceedings Vol. 8353:
Infrared Technology and Applications XXXVIII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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