
%0 Journal Article
%A Gillingham, P. R. 
%T An Optical Design for an Antarctic 2 m Telescope with a Near IR Imager
%J Publications of the Astronomical Society of Australia
%D 2002/12/02
%V 19
%N 3
%P 301-305
%K telescopes &#8212; infrared: general &#8212; instrumentation: photometers &#8212; methods: observational
%R https://doi.org/10.1071/AS01071
%U https://www.publish.csiro.au/paper/AS01071 
%X A study has been made of the optical performance to be expected from an Antarctic Ritchey Chr&#233;tien 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. 
