Polarization Aberrations of an Overhead Projector

Russell A. Chipman, Carley L. Dunn

Research output: Contribution to journalArticlepeer-review


Polarization aberrations are variations of the instrumental polarization associated with different ray paths through an optical system. The polarization aberrations of an overhead projector are easily observed with two large sheets of Polaroid. The form of these polarization aberrations are described as functions of object and pupil coordinate and are related to the polarizing properties of the lenses and mirrors. These polarization aberrations do not adversely affect the performance of an overhead projector, but they do provide an easy and effective demonstration of the concepts of instrumental polarization. Subject terms: polarization; polarization aberration; mirrors; retardance; diattenuation; Jones calculus.

Original languageEnglish (US)
Pages (from-to)138-148
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jun 13 1989

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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