Shaded Apertures and Bartlet Apertures for Two Line Resolutions on Aperture Shaping

Authors

  • T. Kiran Kumar Research Scholar, Department of Physics, Osmania University, Hyderabad – 500 001 Author
  • A. Narsaiah Research Scholar, Department of Physics, Osmania University, Hyderabad Author
  • K. Vinod Kumar Research Scholar, Department of Physics, Osmania University, Hyderabad – 500 001 Author
  • D. Karuna Sagar Professor, Department of Physics, Osmania University, Hyderabad Author

DOI:

https://doi.org/10.53555/nnas.v2i3.682

Keywords:

two-line resolution, sparrow, Rayleigh criterion

Abstract

Several criteria of resolution, e.g., Rayleigh Criterion, Sparrow Criterion, etc., are used for assessment of two-line resolution of unobscured imaging systems. The choice of particular criterion is usually dictated by the threshold contrast sensitivity of the detector used for the purpose. Annular apertures and shrink apertures have a narrower central lobe in the line spread function, and therefore they are expected to provide improved two-line resolution characteristics compared to their unobscured counterparts. The interrelationship between the dip in central intensity, the degree of central obscuration, and the least resolvable distance is studied in this paper.

References

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Published

2015-03-31

Issue

Vol. 2 No. 3 (2015): Journal of Advance Research in Applied Science (ISSN: 2208-2352)

Section

Articles

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How to Cite

Shaded Apertures and Bartlet Apertures for Two Line Resolutions on Aperture Shaping. (2015). Journal of Advance Research in Applied Science (ISSN 2208-2352), 2(3), 07-09. https://doi.org/10.53555/nnas.v2i3.682