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ACTIVE OPTICS [1 record]
Record 1 - internal organization data 2009-05-07
Record 1, English
Record 1, Subject field(s)
- Optics
Record 1, Main entry term, English
- active optics
1, record 1, English, active%20optics
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Optics pertaining to the development and use of optical components whose characteristics are controlled during their operational use; in contrast to inactive, rigid, or fixed optics. 2, record 1, English, - active%20optics
Record number: 1, Textual support number: 1 OBS
Active optics is a relatively new technology for reflecting telescopes developed in the 1980s, which has more recently enabled the construction of a generation of telescopes with 8 metre primary mirrors. Active optics works by "actively" adjusting the telescope's mirrors. This method is used by, among others, the Nordic Optical Telescope, the New Technology Telescope and the Keck telescopes, as well as all of the largest telescopes built in the last decade. 3, record 1, English, - active%20optics
Record 1, French
Record 1, Domaine(s)
- Optique
Record 1, Main entry term, French
- optique active
1, record 1, French, optique%20active
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
En astronomie, l'optique active désigne la technologie qui consiste à déformer un miroir réflecteur à fin d'optimiser sa qualité d'image (mise au foyer), et corriger les différentes aberrations optiques (comme la coma, l'astigmatisme, le trèfle etc). 2, record 1, French, - optique%20active
Record number: 1, Textual support number: 1 OBS
L'optique active ne doit pas être confondue avec l'optique adaptative qui consiste à corriger les déformations de l'image due à la turbulence atmosphérique en temps réel (c'est-à-dire avec une fréquence de quelques Hertz). L'optique active est utilisée, parmi d'autres, par les télescopes suivants : Nordic Optical Telescope, New Technology Telescope à l'Observatoire de La Silla, les télescopes du Very Large Telescope et les Télescopes Keck situés à Hawaii. 2, record 1, French, - optique%20active
Record 1, Spanish
Record 1, Textual support, Spanish
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