On the Optics of the Schmidt Camera
Open Access
- 1 June 1949
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 109 (3) , 279-297
- https://doi.org/10.1093/mnras/109.3.279
Abstract
A fifth-order aberration function is derived for the ordinary Schmidt camera. Colour correction is also considered and a proof is given of J. G. Baker's formulae for the first three coefficients in the aspheric plate profile of a system with minimized axial colour-spreads. Finally aberration functions are used to design a modified system in which the monochromatic aberrations are balanced over a finite field, and the performance of this system is compared with that of the ordinary Schmidt camera by means of spot diagrams.Keywords
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