Grating detectability - A method to evaluate aberration effects in visual instruments

Details Grating detectability - A method to evaluate aberration effects in visual instruments Grating detectability - A method to evaluate aberration effects in visual instruments

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979opten..18...33g&link_type=abstract

Optical Engineering, vol. 18, Jan.-Feb. 1979, p. 33-38.

Physics

3

Aberration, Eye Examinations, Gratings, Optical Equipment, Visual Discrimination, Modulation Transfer Function, Signal Detection, Telescopes

Scientific paper

The theory of signal detectability is used to evaluate the effects of instrument aberrations on a total visual optical system with the human eye included. A quantitative measure of grating detectability is obtained using a single-stimulus, random-presentation procedure, with multiple-rating responses. The results indicate that the detectability of square-wave gratings, viewed through a telescope, decreases as aberrations are introduced in the instrument. The amount of degradation is determined for each of six aberration conditions. This degradation index can be used to obtain the degraded modulation transfer function of the total system for each aberration condition.

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