Cassegrain Reflector System
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
Cassegrain Reflector System
a type of reflector. In the Cassegrain system the image of a heavenly body is formed behind the primary parabolic mirror by the rays of light directed through an opening in it by means of a secondary convex hyperbolic mirror. The system was proposed by the French physicist N. Cassegrain in 1672.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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