Distortion-adjusting optical elements

Daniel J. Reiley, Russell A Chipman

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Distortion can be corrected in an image by placing a fourth-order aspheric optical element near the image plane. Moving the aspheric surface longitudinally changes the amount of distortion that is added by theaspheric surface without changing the paraxial image. Third-order astigmatism limits the performance ofdistortion correctors and may be eliminated by adding another fourth-order aspheric surface. Exampleelements were fabricated by diamond turning and were shown to introduce distortion withoutsignificantly degrading image quality. Three arrangements of distortion correctors are discussed: asingle-element planoaspheric arrangement, an antisymmetric two-element arrangement, and a biaspheric arrangement in which distortion is not adjustable.

Original languageEnglish (US)
Pages (from-to)2188-2193
Number of pages6
JournalApplied Optics
Volume31
Issue number13
DOIs
StatePublished - 1992
Externally publishedYes

Keywords

  • Aspheric optics
  • Diamond turning
  • Distortion
  • Wave-front correction

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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