Spectrographic development of diffraction gratings aspherized by elastic relaxation

Details Spectrographic development of diffraction gratings aspherized by elastic relaxation Spectrographic development of diffraction gratings aspherized by elastic relaxation

Jul 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....59..249l&link_type=abstract

Astronomy and Astrophysics, vol. 59, no. 2, July 1977, p. 249-253.

Astronomy and Astrophysics

Astrophysics

1

Diffraction Patterns, Gratings (Spectra), Optical Correction Procedure, Spectrophotography, Aberration, Elastic Properties, Relaxation (Mechanics), Stellar Spectrophotometry

Scientific paper

Aspherical diffraction gratings have been produced by the dioptric elasticity method. These gratings find use in mountings characterized by a small number of surfaces, a fast aperture ratio, and a wide wavelength range. The gratings can be designed to compensate for spherical aberration as well as coma or astigmatism. Tests of a wide field mounting that compensates for spherical aberration are described. This mounting can be used as an objective grating or in a slit stellar or nebular spectrograph.

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