Paraxial ghost image analysis

Rania H. Abd El-Maksoud, Jose M Sasian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations


This paper develops a methodology to model ghost images that are formed by two reflections between the surfaces of a multi-element lens system in the paraxial regime. An algorithm is presented to generate the ghost layouts from the nominal layout. For each possible ghost layout, paraxial ray tracing is performed to determine the ghost Gaussian cardinal points, the size of the ghost image at the nominal image plane, the location and diameter of the ghost entrance and exit pupils, and the location and diameter for the ghost entrance and exit windows. The paraxial ghost irradiance point spread function is obtained by adding up the irradiance contributions for all ghosts. Ghost simulation results for a simple lens system are provided. This approach provides a quick way to analyze ghost images in the paraxial regime.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2009
EventCurrent Developments in Lens Design and Optical Engineering X - San Diego, CA, United States
Duration: Aug 3 2009Aug 5 2009


OtherCurrent Developments in Lens Design and Optical Engineering X
CountryUnited States
CitySan Diego, CA



  • Gaussian imaging
  • ghosts
  • irradiance point spread function
  • sequential ray tracing
  • Stray light

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Abd El-Maksoud, R. H., & Sasian, J. M. (2009). Paraxial ghost image analysis. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7428). [742807]