Physics – Optics
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.236p..47w&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 236, Jan. 15, 1989, p. 47P-50P.
Physics
Optics
12
Focusing, Image Processing, Optical Correction Procedure, Telescopes, Cassegrain Optics, Lenses, Paraboloid Mirrors
Scientific paper
New types of prime focus field correctors for Ritchey-Chretien telescopes which have significantly better imaging than those presently in use are discussed. A corrector consisting of two contiguous positive lenses of relatively low power followed by separated negative and positive lenses has been applied to the f/2.7 focus of the Cerro Tololo 4-m telescope. Also considered is a 2.0-deg corrector for the Anglo-Australian 2.9-m telescope.
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