Placement of multiple apertures for imaging telescopes

J. Patrick Fitch; Taylor W. Lawrence

doi:10.1117/12.19282

1 August 1990 Placement of multiple apertures for imaging telescopes

J. Patrick Fitch, Taylor W. Lawrence

Proceedings Volume 1237, Amplitude and Intensity Spatial Interferometry; (1990) https://doi.org/10.1117/12.19282
Event: SPIE Astronomical Telescopes and Instrumentation for the 21st Century, 1990, Tucson, AZ, United States

Abstract

Two techniques we have used for determining mirror positions in multiple-aperture telescope arrays are described. Our design criteria is the maximization of the contiguous central core diameter of the optical transfer function for the telescope system. The first technique is applicable to arrays with a relatively small, O(10), number of apertures and is essentially an exhaustive search with a simple in-line test which allows the search space to be 'pruned' by an order of magnitude. In the second technique, arrays of a large number of apertures are designed using a fractal approach by recursively combining the results from several array patterns with fewer apertures. Both techniques are demonstrated for one and two dimensional designs and can be extended for higher dimensions if needed.

Citation Download Citation

J. Patrick Fitch and Taylor W. Lawrence "Placement of multiple apertures for imaging telescopes", Proc. SPIE 1237, Amplitude and Intensity Spatial Interferometry, (1 August 1990); https://doi.org/10.1117/12.19282

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