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Proceedings Paper

Application of apodization technique for image enhancement of optical systems
Author(s): Om Prakash Nijhawan; S. D. Gupta; A. K. Gupta
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Paper Abstract

Imaging characteristics of optical system can be modified to achieve improved performance by making use of apodisation technique. It can be achieved by modifying either by amplitude or the phase or both over the pupil of the optical system or by using linear polarisation masks placed at different orientations over the zones of the optical system . It has been found that the performance of apodised optical systems can be improved in any desired region of spatial frequencies by varying the relative size of the zones as well as amplitude transmittances in different zones. Similar results are also obtained in case of optical systems masked with linear polarisers.

Paper Details

Date Published: 1 July 1990
PDF: 1 pages
Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); doi: 10.1117/12.34900
Show Author Affiliations
Om Prakash Nijhawan, Instruments R & D Estt. (India)
S. D. Gupta, Instruments R & D Estt. (India)
A. K. Gupta, Instruments R & D Estt. (India)

Published in SPIE Proceedings Vol. 1319:
Optics in Complex Systems
F. Lanzl; H.-J. Preuss; G. Weigelt, Editor(s)

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