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1 January 1987 Two Point Resolution Criterion For Multi-Aperture Telescopes
Steven M. Watson, James P. Mills, Steven K. Rogers
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Proceedings Volume 0813, Optics and the Information Age; (1987) https://doi.org/10.1117/12.967335
Event: 14th Congress of the International Commission for Optics, 1987, Quebec, Canada
Abstract
The next generation of large telescopes may involve designs which use multiple parallel apertures. The two-point resolution criteria (Rayleighl or Sparrow2) is the classic way of comparing telescopes. However, there is no standard two-point resolution criterion for multi-aperture systems. The authors propose a new resolution criterion which accounts for the unique characteristics of a multi-aperture impulse response. The impulse response of a multi-aperture system is characterized by a primary peak and side-peaks which are dependent on the spacing of the individual subapertures which comprise the multi-aperture system. As the spacing between the subapertures increase, the intensity of the side-peaks increase. To illustrate the difference between two-point source diffraction patterns from a single aperture and a six-aperture system of an equivalent diameter, refer to Figure 1.
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Steven M. Watson, James P. Mills, and Steven K. Rogers "Two Point Resolution Criterion For Multi-Aperture Telescopes", Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); https://doi.org/10.1117/12.967335
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KEYWORDS
Diffraction
Telescopes
Large telescopes
Optical instrument design
Far-field diffraction
Solids
Standards development
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