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13 October 1986 Kitt Peak National Observatory 4 Meter Telescope Risley Prism System
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Abstract
The existing Risley prism at the 4 meter telescope is described. This device compensates atmospheric dispersion up to 60 degrees from zenith for the visible range. Under converging light at f/8 and f/30 the axial performance is good and the field imagery is mostly dictated by the properties of the primary-secondary configuration.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. E. Simmons and F. R. Vaughn "Kitt Peak National Observatory 4 Meter Telescope Risley Prism System", Proc. SPIE 0627, Instrumentation in Astronomy VI, (13 October 1986); https://doi.org/10.1117/12.968106
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