New family of refractive imaging spectrographs

David W. Warren; John A. Hackwell

doi:10.1117/12.256234

1 November 1996 New family of refractive imaging spectrographs

David W. Warren, John A. Hackwell

Proceedings Volume 2863, Current Developments in Optical Design and Engineering VI; (1996) https://doi.org/10.1117/12.256234
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

We describe a new form of prism spectrograph system based on aplanatic principles. The basic system is simple, comprising a prism with two spherical refracting surfaces, both operating near their aplanatic conjugates, and a spherical mirror operating near its center of curvature. This form provides a flat, accessible focal surface suitable for use with modern array detectors. Good image quality can be maintained over large wavelength intervals at fast focal ratios, making this form particularly useful for moderate resolution spectrography. Its simplicity, compactness, and tolerance of misalignment make it attractive for space and cryogenic instruments. We present there examples of operating instruments that have been constructed using this new form.

Citation Download Citation

David W. Warren and John A. Hackwell "New family of refractive imaging spectrographs", Proc. SPIE 2863, Current Developments in Optical Design and Engineering VI, (1 November 1996); https://doi.org/10.1117/12.256234

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