Physics
Scientific paper
Mar 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975josa...65..261l&link_type=abstract
Optical Society of America, Journal, vol. 65, Mar. 1975, p. 261-266.
Physics
1
Aberration, Anastigmatism, Lens Design, Optical Correction Procedure, Paraboloid Mirrors, Schmidt Telescopes, Conical Bodies, Eccentricity, Ray Tracing, Reflecting Telescopes, Refracting Telescopes, Surface Geometry
Scientific paper
A conic mirror and an afocal achromatic refractive corrector located at the proximate geometrical focus of the conic define a family of anastigmatic telescopes of which the Schmidt telescope is a special member. In general, the corrector must consist of at least two elements whose surfaces can be spherical. Equations are given for the third-order design of thin two-element correctors. A solution that satisfies the condition of minimum higher-order aberrations is given for a corrector for a paraboloidal mirror. An example is given of a trigonometrically corrected paraboloidal-mirror anastigmat, and its aberrations are discussed. Conic-mirror anastigmats with mirrors of eccentricity on the order of unity are a potentially valuable class of telescopes.
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