NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Apodization and image contrastApodization is often defined in a restricted sense as the suppression of the outer parts (i.e., the concentric rings) of wave optical point images, which results in a higher relative concentration of energy in the central image area. In a wider sense, apodization is defined as any modification of the transmission distribution across the aperture. Generally the modulation transfer function (MTF) is not used in the treatment of apodization. To see how the imaging performance is modified, the MTF is introduced into the discussion. Besides the constant transmission, two transmission distributions which are functions of the aperture radius are considered.
Document ID
19790046342
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Tschunko, H. F. A.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Date Acquired
August 9, 2013
Publication Date
April 1, 1979
Publication Information
Publication: Applied Optics
Volume: 18
Subject Category
Optics
Accession Number
79A30355
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available