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单词 maksutov–cassegrain
释义

Maksutov–Cassegrainn.

Brit. /makˈsuːtɒf ˈkasᵻˌɡreɪn/, /ˈmaksᵿtɒf ˈkasᵻˌɡreɪn/, U.S. /ˈmæksutɔv ˈkæsəˌɡreɪn/
Origin: From proper names. Etymons: proper name Maksutov, proper name Cassegrain.
Etymology: < the names of Dimitri D. Maksutov (see Maksutov n.) and N. Cassegrain (1625–1712), French astronomer (see Cassegrainian adj.).
Astronomy.
A Maksutov–Cassegrain telescope or camera, having a deeply curved meniscus lens as a correcting plate and incorporating a small secondary mirror which reflects light back through a hole in the primary mirror. See Maksutov n., Cassegrain at Cassegrainian adj.
ΘΚΠ
the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > astronomical telescopes
stellascope1661
Schmidt camera1934
Schmidt1939
Maksutov–Cassegrain1958
Maksutov1970
Nasmyth–Cassegrain1972
Schmidt telescope1978
Dobsonian1980
1958 C. Frank Bk. of Telescope xiv. 108 With a small central mirror attached to the inner surface of the meniscus a Maksutov/Cassegrain results.
1964 Sky & Telescope Mar. 180/2 My first venture into catadioptric telescope was making a 6-inch f/15 Maksutov-Cassegrain of John Gregory's design.
1998 Sky & Telescope (Nexis) Mar. 55 I homed in on the correct speed by monitoring the tracking with a small telescope (a Celestron C90 Maksutov–Cassegrain) attached to the mount instead of a camera.

Compounds

attributive. Designating or relating to such a telescope or camera.
ΚΠ
1961 Jrnl. Optical Soc. Amer. 51 359 (title) Flat-fielded Maksutov-Cassegrain optical systems.
1971 Monthly Notices Royal Astron. Soc. 153 270 In the Maksutov-Cassegrain camera described above, the expedient of thickening the meniscus..has been carried out as far as is possible.
1998 Mod. Astronomer Mar. 21/2 (advt.) Maksutov–Cassegrain telescope for use as a high light gathering astronomical scope, a compact terrestrial scope or a fast 500mm mirror lens with a T2 adaptor.
This is a new entry (OED Third Edition, June 2000; most recently modified version published online March 2022).
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n.1958
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更新时间:2024/11/10 18:12:44