Tolerancing a lens for LED uniform illumination

Jieun Ryu, Jose M Sasian

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

3 Scopus citations


A method to evaluate tolerance sensitivities for lenses used to produce uniform illumination is presented. Closed form surfaces are used to define optical surfaces and relative illumination is calculated from light etendue considerations.

Original languageEnglish (US)
Title of host publicationOptical System Alignment, Tolerancing, and Verification XI
EditorsJose Sasian, Richard N. Youngworth
ISBN (Electronic)9781510612112
StatePublished - 2017
EventOptical System Alignment, Tolerancing, and Verification XI 2017 - San Diego, United States
Duration: Aug 6 2017Aug 7 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherOptical System Alignment, Tolerancing, and Verification XI 2017
Country/TerritoryUnited States
CitySan Diego


  • Freeform Surfaces
  • LED
  • Relative Illumination
  • Uniform Illumination

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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