Refractive elements in spectrographs

George W. Hopkins

doi:10.1117/12.322000

21 September 1998 Refractive elements in spectrographs

George W. Hopkins

Proceedings Volume 3482, International Optical Design Conference 1998; (1998) https://doi.org/10.1117/12.322000
Event: International Optical Design Conference, 1998, Kona, HI, United States

Abstract

A spectrograph design was needed for an application in medial optics. Requirements for resolution were modest, cost was to be minimized, and every photon was precious. The initial design used a concave, aberration-corrected, holographically-recorded, diffraction grating. This design cost too much and collected too few of the precious photons. Several design forms, which use refractive optics with a planar diffraction grating, were investigated. The design that was chosen and built uses two aspheric glass lenses, one for collimating and one for focusing, together with a planar diffraction grating.

Citation Download Citation

George W. Hopkins "Refractive elements in spectrographs", Proc. SPIE 3482, International Optical Design Conference 1998, (21 September 1998); https://doi.org/10.1117/12.322000

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