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Proceedings Paper

Optically multiplexed two-dimensional imaging arrays
Author(s): Eric R. Craine
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Paper Abstract

In an effort to overcome the small size of optical and IR imaging arrays a wide range of techniques for building mosaics of small arrays has been attempted. These methodologies are typically handicapped by one or more shortcomings, including a severe limit on the number of detectors which can be built into the mosaic, physical (non-imaging) gaps in the array, or difficulty of fabrication of imaging optics. We have developed an optical technique which has the capacity to enable extremely large mosaics of 2D arrays, while at the same time exhibiting absolutely no gaps between the elements of the mosaic. Further, through parallel processing of the detectors in the mosaic very high speed readouts of the image data are possible relative to than achievable with comparable large monolithic arrays (if they could even be fabricated). Several laboratory bench prototypes of this imaging system have been built and tested with outstanding results. We discuss the possible optical configurations of the system, techniques for aligning the arrays, and possible configurations for use at the telescope. Examples of test imagery obtained with the prototypes are shown.

Paper Details

Date Published: 1 June 1994
PDF: 7 pages
Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); doi: 10.1117/12.176687
Show Author Affiliations
Eric R. Craine, Western Research Company, Inc. and Colorado State Univ. (United States)

Published in SPIE Proceedings Vol. 2198:
Instrumentation in Astronomy VIII
David L. Crawford; Eric R. Craine, Editor(s)

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