Share Email Print
cover

Proceedings Paper

Correction Of Spherochromatism In Schmidt Cameras
Author(s): Richard G. Bingham
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The variation with wavelength of spherical aberration in Schmidt cameras can be mitigated by a number of different methods. The more usual one is to balance this spherochromatism against longitudinal chromatic difference of focus, by introducing a positive vertex power at the corrector surface. An alternative is to make an achromatic corrector of two materials with different dispersions. A further method described here is to use a negative vertex power or chromatic aberration at the corrector, which induces a compensating spherochromatism by changing the incidence height at the mirror surface. Various other aberrations can be corrected. Examples include a solid camera for use with a charge-coupled device as detector in a spectrometer.

Paper Details

Date Published: 16 June 1983
PDF: 8 pages
Proc. SPIE 0369, Max Born Centenary Conf, (16 June 1983); doi: 10.1117/12.934383
Show Author Affiliations
Richard G. Bingham, Royal Greenwich Observatory (England)


Published in SPIE Proceedings Vol. 0369:
Max Born Centenary Conf
M. John Colles; D. William Swift, Editor(s)

© SPIE. Terms of Use
Back to Top