hyperboloidal reflector

См. также в других словарях:

• Cassegrain reflector — ▪ astronomical instrument  in astronomical telescopy, an arrangement of mirrors to focus incoming light at a point close to the main light gathering mirror. The design was proposed in 1672 by French priest Laurent Cassegrain.       In the… …   Universalium

• Parabolic antenna — A parabolic satellite communications antenna at Erdfunkstelle Raisting, the biggest facility for satellite communication in the world, in Raisting, Bavaria, Germany. It has a Cassegrain type feed. A parabolic antenna is an antenna that uses a… …   Wikipedia

• Nicholas U. Mayall Telescope — Mayall on March 2, 1973 viewing through the telescope to be named in his honor. Organization NOAO …   Wikipedia

• The Hyperboloid of Engineer Garin — infobox Book | name = The Garin Death Ray title orig = Гиперболоид инженера Гарина translator = Bernard Guilbert Guerney (1st edition) George Hanna (revised ed.) image caption = Cover of the 1955 English revised edition author = Aleksey Tolstoy… …   Wikipedia

• Cassegrainian telescope — noun a reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the center of the primary mirror • Syn: ↑Gregorian telescope • Hypernyms: ↑reflecting… …   Useful english dictionary