Apodizations with decreasing transmissions and with central obstructions transmute the point spread functions in image size and in the distribution of image irradiance. The distributions are characterized by the envelope functions which are exponential functions descending with variable exponents. At high apodization levels and lower central obstruction (<0.1) new extended radial zones in the outer part of the central ring groups are formed. Such transmutations of the image functions are of more than theoretical interest, particularly if the irradiance levels in the outer ring zones are to be compared to background irradiance levels.
© 1983 Optical Society of America
Original Manuscript: September 11, 1982
Published: January 1, 1983
Hubert F. A. Tschunko, "Imaging performance of annular apertures. 4: Apodization and point spread functions," Appl. Opt. 22, 133-136 (1983)
|Alert me when this paper is cited|
OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.