A Three-Lens Combined Field and Dispersion Corrector Giving Telecentric Imagery on Optics Fibres
Abstract
A field corrector for a Ritchey-Chrétien telescope is described, embodying correction of atmospheric dispersion and telecentric field illumination. It consists of only three spherical surfaced lenses (four air-glass surfaces) and covers a field of up to 40-arcmin diameter.
- Publication:
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Monthly Notices of the Royal Astronomical Society
- Pub Date:
- August 1993
- DOI:
- 10.1093/mnras/263.3.641
- Bibcode:
- 1993MNRAS.263..641W
- Keywords:
-
- instrumentation: spectrographs - techniques: spectroscopic