An Optical Design for an Antarctic 2 m Telescope with a Near IR Imager
Abstract A study has been made of the optical performance to be expected from an Antarctic Ritchey Chrétien telescope with a 2 m diameter primary mirror imaging directly onto a detector array in the K and L infrared windows. Near diffraction limited performance is provided across a flat 30 arcmin di...
| Published in: | Publications of the Astronomical Society of Australia |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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Cambridge University Press (CUP)
2002
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1071/as01071 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1323358000007177 |
| Summary: | Abstract A study has been made of the optical performance to be expected from an Antarctic Ritchey Chrétien telescope with a 2 m diameter primary mirror imaging directly onto a detector array in the K and L infrared windows. Near diffraction limited performance is provided across a flat 30 arcmin diameter field by compensating the astigmatism and field curvature with a meniscus lens which also serves as the Dewar window. With baffling inside and Narcissus mirrors outside the Dewar, extraneous radiation can be kept to a low level. |
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