| Autor: |
Dobson, S. J., Macdonald, J., Pilgrim, R. |
| Zdroj: |
Journal of Modern Optics; June 1993, Vol. 40 Issue: 6 p1023-1033, 11p |
| Abstrakt: |
On many occasions observers using telescope and sighting instruments see an image subject to an oscillatory displacement. It is of interest to the designers and users of these optical instruments to know in a quantitative way how such image oscillation will affect overall performance. This paper describes a set of laboratory experiments undertaken in carefully controlled conditions to study this problem in terms of its effect on the contrast sensitivity function of observers as they looked through a 10 × telescope at sinusoidal grating targets. The experiments show that observers perform this task surprisingly well, obtaining results that are hard to explain in terms of simple modelling. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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