All-reflective aspherized grating spectrographs: the Marly spectrographs of the Haute-Provence and Nanjing observatories.

Details All-reflective aspherized grating spectrographs: the Marly spectrographs of the Haute-Provence and Nanjing observatories. All-reflective aspherized grating spectrographs: the Marly spectrographs of the Haute-Provence and Nanjing observatories.

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989crasb.308..381l&link_type=abstract

Comptes Rendus de l'Academie des Sciences, Sér. II, Tome 308, No. 4, p. 381 - 387

Computer Science

1

Grating Spectrographs: Optical Design

Scientific paper

The authors consider the optical design of the all-reflective type for medium and low resolution spectroscopy, as is usually used for high resolution. The presently described Marly spectrographs of the Haute-Provence and Nanjing observatories have dispersions of 4 and 8 nm/mm in the first order. An aspherization technique of making reflective diffraction gratings was developed. The Marly spectrographs are very compact anastigmats and have achromatic flat fields.

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