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A study has been made of the optical performance to be expected from an Antarctic Ritchey Chrtien 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 fie...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.8.3583 http://www.phys.unsw.edu.au/~mgb/Antbib/hobart_gillingham.pdf |
| Summary: | A study has been made of the optical performance to be expected from an Antarctic Ritchey Chrtien 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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