Optical design with orthogonal representations of rotationally symmetric and freeform aspheres

Christoph Menke, G. W. Forbes

Research output: Contribution to journalReview article

33 Citations (Scopus)

Abstract

We review the motivations and intended bene fits of orthogonalized representations of aspheric shapes and demonstrate unexpected gains for design purposes. Leaving aside improvements in 'design for manufacturability', we show that local optimization within standard design codes can find solutions with better optical performance when orthogonal descriptions are employed. Our examples include rotationally symmetric systems as well as systems with no global axis of symmetry and even a system of freeform surfaces (i.e., with no individual axes of symmetry).

Original languageEnglish
Pages (from-to)97-109
Number of pages13
JournalAdvanced Optical Technologies
Volume2
Issue number1
DOIs
Publication statusPublished - 1 Feb 2013
Externally publishedYes

Keywords

  • Aspheres
  • Freeform optics
  • Optical design
  • Optimization
  • Orthogonal polynomials

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