Adaptive steerable imaging array

Details Adaptive steerable imaging array Adaptive steerable imaging array

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.2029..354h&link_type=abstract

Proc. SPIE Vol. 2029, p. 354-368, Digital Image Recovery and Synthesis II, Paul S. Idell; Ed.

Physics

Optics

1

Scientific paper

We propose an optimized design for the redeployment of the Multiple Mirror Telescope (MMT) primary optics as an Adaptive Steerable Imaging Array (ASIA) providing direct focal plane image formation. The design incorporates concepts of active telescope alignment and adaptive optics proven in the existing MMT. Existing 25 m radio telescope mount technology could easily be adapted to provide support of the optics with tracking stability, against wind loading, sufficient to allow optical rigidity to be obtained using off-axis stellar references, a possibility only feasible with comounted MMT-like interferometer designs which mitigate the field-of-view limitations of long optical delay-lines. As a result of the Steward Observatory borosilicate honeycomb mirror development program a seventh mirror may also be available, giving the light gathering capability of a 4.8 m aperture but with the resolution of a 25 m aperture, for a facility dedicated to the advancement of interferometric imaging technology and high angular resolution astronomy. By utilizing existing technology and providing weather proofing of the optics on its mount, an expensive telescope enclosure, as well as costly, complex laser metrology and optical delay lines, is avoided in a cost effective installation.

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