Optical diagnostic equipment for evaluating a wide field-of-view phased array telescope

Raymond C. Dymale; Joseph Paul Blea

doi:10.1117/12.19213

1 July 1990 Optical diagnostic equipment for evaluating a wide field-of-view phased array telescope

Raymond C. Dymale, Joseph Paul Blea

Proceedings Volume 1236, Advanced Technology Optical Telescopes IV; (1990) https://doi.org/10.1117/12.19213
Event: SPIE Astronomical Telescopes and Instrumentation for the 21st Century, 1990, Tucson, AZ, United States

Abstract

A key feature of the Multipurpose Multiple Telescope Testbed (MMTT) is its relatively wide field of view -- up to 30 arcminutes total. A thorough evaluation of the telescope array necessitates some form of image analysis over this field. System designers chose the star test, here modified to simltaneously display point spread functions (PSFs) at several locations in the image plane. Deviations of the image structure from ideal indicate control system deficiencies. Diagnostics hardware was designed and built to both simulate numerous unresolved light sources throughout the field of view and to display several of the corresponding images for detailed analysis. The resultant multiple target generator is an array of precision pinholes complete with beam-converting optics that require minimal alignment. PSFs are displayed with modern solid-state video equipment. Image irradiance cross-sections can be readily compared with theoretical predictions.

Citation Download Citation

Raymond C. Dymale and Joseph Paul Blea "Optical diagnostic equipment for evaluating a wide field-of-view phased array telescope", Proc. SPIE 1236, Advanced Technology Optical Telescopes IV, (1 July 1990); https://doi.org/10.1117/12.19213

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