Cassegrain telescope


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Related to Cassegrain telescope: Newtonian telescope

Cassegrain telescope

(ˈkæsɪˌɡreɪn)
n
(Astronomy) an astronomical reflecting telescope in which incident light is reflected from a large concave paraboloid mirror onto a smaller convex hyperboloid mirror and then back through a hole in the concave mirror to form the image
[C19: named after N. Cassegrain, 17th-century French scientist who invented it]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
A cassegrain telescope consists of primary and secondary reflecting mirrors.
She has an 8in Schmidt Cassegrain telescope which is fixed on the sky from her window and can spot planets and far off galaxies.
To reduce camera thickness but retain good light collection and high-resolution capabilities, Tremblay and colleagues replaced the traditional lens with a "folded" optical system that is based on an extension of conventional astronomy telescopes that employed mirrors, such as the Cassegrain telescope, which was developed in 1672.