The Argunov–Cassegrain telescope is a catadioptric telescope design first introduced in 1972 by P. P. Argunov.[1][2] All optics are spherical, and the classical Cassegrain secondary mirror is replaced by a sub-aperture secondary corrector group consisting of three air-spaced elements, two lenses and a Mangin mirror (the element farthest from the primary mirror).
Argunov systems only employ spherical surfaces and avoid the practical difficulties of making and testing aspheres. However, this benefit is marginal, as it is almost as difficult to make a true zone-free sphere of precise radius of curvature as it is to make an aspheric surface with comparable precision.[citation needed] Further, since multiple surfaces are involved, creating a design with good aberration correction can become very complicated.[3]
Kudzej, I.; Karetnikov, V.G.; Dubovsky, P.A.; et al. (2007). "Astronomical observatory at Kolonické Sedlo and its results in variable stars observing". Odessa Astronomical Publications. 20: 100–105.
Kudzej, I.; Dubovsky, P.A. (December 2010). "One-meter telescope in Kolonica Saddle – 4 years of operation" (PDF). Odessa Astronomical Publications. 23: 70–73. Bibcode:2010OAP....23...70K – via Harvard U. ADS.
External links
. Archived from the original on 30 May 2014.
. Archived from the original on 8 June 2016.
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argunov, cassegrain, telescope, catadioptric, telescope, design, first, introduced, 1972, argunov, optics, spherical, classical, cassegrain, secondary, mirror, replaced, aperture, secondary, corrector, group, consisting, three, spaced, elements, lenses, mangin. The Argunov Cassegrain telescope is a catadioptric telescope design first introduced in 1972 by P P Argunov 1 2 All optics are spherical and the classical Cassegrain secondary mirror is replaced by a sub aperture secondary corrector group consisting of three air spaced elements two lenses and a Mangin mirror the element farthest from the primary mirror Light path in an Argunov Cassegrain telescope Contents 1 Discussion 2 See also 3 References 4 Further reading 5 External linksDiscussion EditArgunov systems only employ spherical surfaces and avoid the practical difficulties of making and testing aspheres However this benefit is marginal as it is almost as difficult to make a true zone free sphere of precise radius of curvature as it is to make an aspheric surface with comparable precision citation needed Further since multiple surfaces are involved creating a design with good aberration correction can become very complicated 3 See also EditKlevtsov Cassegrain telescope List of telescope typesReferences Edit Argunov P P 1972 Izokhromaticheskie sistemy teleskopov so sfericheskoi optikoi Isochromatic telescope designs with spherical optics Astronomicheskij Vestnik 6 1 52 61 Catadioptric telescopes Sky Gazette 6 March 2016 Retrieved 19 February 2018 Sacek Vladimir Catadioptric telescopes telescope optics net Notes on amateur telescope optics 10 2 1 Further reading EditKudzej I Karetnikov V G Dubovsky P A et al 2007 Astronomical observatory at Kolonicke Sedlo and its results in variable stars observing Odessa Astronomical Publications 20 100 105 Kudzej I Dubovsky P A December 2010 One meter telescope in Kolonica Saddle 4 years of operation PDF Odessa Astronomical Publications 23 70 73 Bibcode 2010OAP 23 70K via Harvard U ADS External links Edit Astrokolonica page Archived from the original on 30 May 2014 Astronomical Observatory on Kolonica Saddle Archived from the original on 8 June 2016 This article about a specific observatory telescope or astronomical instrument is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Argunov Cassegrain telescope amp oldid 1127005845, wikipedia, wiki, book, books, library,
