- Cassegrain focus
- Макаров: кассегреновский фокус
Универсальный англо-русский словарь. Академик.ру. 2011.
Cassegrain focus
Смотреть что такое "Cassegrain focus" в других словарях:
cassegrain — ˈkasəˌgrān, French kȧsgraⁿ adjective also cassegrainian Usage: usually capitalized C : of, relating to, or being the system of optics used in a Cassegrainian telescope cassegrain focus … Useful english dictionary
Cassegrain — [kas′ə grān΄] adj. of an arrangement of mirrors, lenses, etc. used in reflecting telescopes and microwave antennas, having its focus or transmission point near or behind the center of the main mirror Cassegrainian adj. * * * … Universalium
Cassegrain — [kas′ə grān΄] adj. of an arrangement of mirrors, lenses, etc. used in reflecting telescopes and microwave antennas, having its focus or transmission point near or behind the center of the main mirror Cassegrainian adj … English World dictionary
Cassegrain reflector — The Cassegrain reflector is a combination of two coaxial reflectors used in Cassegrain telescopes and radio antennas.First developed in 1672 by Laurent Cassegrain, this reflector is a combination of a primary concave mirror and a secondary convex … Wikipedia
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
Cassegrain antenna — In telecommunications and radar, a Cassegrain antenna is an antenna in which the feed radiator is mounted at or near the surface of a concave main reflector and is aimed at a convex secondary reflector slightly inside the focus of the main… … Wikipedia
Focus (optics) — An image that is partially in focus, but mostly out of focus in varying degrees. In geometrical optics, a focus, also called an image point, is the point where light rays originating from a point on the object converge.[1] Although the focus is… … Wikipedia
Cassegrain telescope — /kas euh grayn /, Astron. a reflecting telescope in which the light, passing through a central opening in the primary mirror, is brought into focus a short distance behind it by a secondary mirror. Also called Cassegrainian telescope /kas euh… … Universalium
Cassegrain telescope — /kas euh grayn /, Astron. a reflecting telescope in which the light, passing through a central opening in the primary mirror, is brought into focus a short distance behind it by a secondary mirror. Also called Cassegrainian telescope /kas euh… … Useful english dictionary
Schmidt-Cassegrain telescope — The Schmidt Cassegrain is a catadioptric telescope. It combines a folded optical path with a corrector plate to make a compact astronomical instrument. Invention and DesignThe Schmidt Cassegrain is a design based on Bernhard Schmidt s Schmidt… … Wikipedia
Reflecting telescope — 24 inch convertible Newtonian/Cassegrain reflecting telescope on display at the Franklin Institute. A reflecting telescope (also called a reflector) is an optical telescope which uses a single or combination of curved mirrors that reflect light… … Wikipedia
