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- Argunov–Cassegrain_telescope abstract "The Argunov Cassegrain telescope is a catadioptric telescope design first introduced in 1972 by P. P. Argunov. 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 seeming 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 asphere of equivalent precision.[citation needed] Also since multiple surfaces are involved, creating a design with good aberration correction can be very complex.".
- Argunov–Cassegrain_telescope thumbnail Diagram_Reflector_ArgunovCassegrain.svg?width=300.
- Argunov–Cassegrain_telescope wikiPageID "4400140".
- Argunov–Cassegrain_telescope wikiPageRevisionID "595312675".
- Argunov–Cassegrain_telescope subject Category:Telescope_types.
- Argunov–Cassegrain_telescope comment "The Argunov Cassegrain telescope is a catadioptric telescope design first introduced in 1972 by P. P. Argunov. 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.".
- Argunov–Cassegrain_telescope label "Argunov–Cassegrain telescope".
- Argunov–Cassegrain_telescope label "阿古諾夫-卡塞格林望遠鏡".
- Argunov–Cassegrain_telescope sameAs Argunov%E2%80%93Cassegrain_telescope.
- Argunov–Cassegrain_telescope sameAs Q4789775.
- Argunov–Cassegrain_telescope sameAs Q4789775.
- Argunov–Cassegrain_telescope wasDerivedFrom Argunov–Cassegrain_telescope?oldid=595312675.
- Argunov–Cassegrain_telescope depiction Diagram_Reflector_ArgunovCassegrain.svg.
