Paraxial ghost image analysis

Rania H. Abd El-Maksoud, José M. Sasian

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

9 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 publicationCurrent Developments in Lens Design and Optical Engineering X
StatePublished - 2009
EventCurrent Developments in Lens Design and Optical Engineering X - San Diego, CA, United States
Duration: Aug 3 2009Aug 5 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherCurrent Developments in Lens Design and Optical Engineering X
Country/TerritoryUnited States
CitySan Diego, CA


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

ASJC Scopus subject areas

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


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