Geometrical irradiance changes in a symmetric optical System

Dmitry Reshidko, Jose M Sasian

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The concept of the aberration function is extended to define two functions that describe the light irradiance distribution at the exit pupil plane and at the image plane of an axially symmetric optical system. Similar to the wavefront aberration function, the irradiance function is expanded as a polynomial, where individual terms represent basic irradiance distribution patterns. Conservation of flux in optical imaging systems is used to derive the specific relation between the irradiance coefficients and wavefront aberration coefficients. It is shown that the coefficients of the irradiance functions can be expressed in terms of wavefront aberration coefficients and firstorder system quantities. The theoretical results-These are irradiance coefficient formulas-Are in agreement with real ray tracing.

Original languageEnglish (US)
Article number015104
JournalOptical Engineering
Issue number1
StatePublished - Jan 1 2017


  • Aberration theory
  • Irradiance
  • Wavefront aberrations

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)


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