Application of apodization technique for image enhancement of optical systems

Om Prakash Nijhawan; S. D. Gupta; A. K. Gupta

doi:10.1117/12.34900

1 July 1990 Application of apodization technique for image enhancement of optical systems

Om Prakash Nijhawan, S. D. Gupta, A. K. Gupta

Proceedings Volume 1319, Optics in Complex Systems; (1990) https://doi.org/10.1117/12.34900
Event: 15th International Optics in Complex Systems, 1990, Garmisch, Germany

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.

Citation Download Citation

Om Prakash Nijhawan, S. D. Gupta, and A. K. Gupta "Application of apodization technique for image enhancement of optical systems", Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); https://doi.org/10.1117/12.34900

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available