27 September 2008 Taking care of field curvature in visual optical instruments
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Abstract
Instruments intended for use with the human eye almost always suffer from field curvature, because nearly all the components in them are of positive power. This paper will look at some standard eyepiece designs, and also one of the designs undertaken by Ancient and Modern Optics, comparing the calculated dioptre variation across the field with the subjective impressions of the user. Finally a design methodology for visual systems will be proposed which takes into account the asphericity, as well as the curvature, of the field presented to the eye, and the ability of the eye preferentially to select the best of the two astigmatic fields presented to it.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brian Blandford, Brian Blandford, } "Taking care of field curvature in visual optical instruments", Proc. SPIE 7100, Optical Design and Engineering III, 71000R (27 September 2008); doi: 10.1117/12.797533; https://doi.org/10.1117/12.797533
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