Investigations of the Influence of the Degree of Coherence upon Images of Edge Objects*
- 1 August 1965
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 55 (8) , 1002
- https://doi.org/10.1364/josa.55.001002
Abstract
The theoretical irradiance is presented for the images of sharp-edged objects as a function of the coherence of the illumination of the object. These distributions are presented for optical systems possessing both square apertures and circular apertures. The irradiance for degraded edged objects is also determined for optical systems with square apertures. The influence of the degree of coherence upon contrast and edge gradient is considered in detail. Experimental results are given which show good agreement with the theoretical irradiance. In all cases the systems are assumed free from aberration and the quasimonochromatic assumption is employed.Keywords
This publication has 4 references indexed in Scilit:
- Some Experimental Measurements of Diffraction Images in Low-Resolution MicroscopyJournal of the Optical Society of America, 1963
- Diffraction Images of Circular Openings with Partially Coherent IlluminationOptica Acta: International Journal of Optics, 1962
- Influence de L'éclairage Partiellement Cohérent sur la Formation des Images de Quelques Objets étendus OpaquesOptica Acta: International Journal of Optics, 1958
- On the diffraction theory of optical imagesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1953