Optomechanical considerations for realistic tolerancing

Eric Herman, José Sasián, Richard N. Youngworth

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

1 Scopus citations


Optical tolerancing simulation has improved so that the modeling of optomechanical accuracy can better predict as-built performance. A key refinement being proposed within this paper is monitoring formal interference fits and checking lens elements within their mechanical housings. Without proper checks, simulations may become physically unrealizable and pessimistic, thereby resulting in lower simulated yields. An improved simulation method has been defined and demonstrated in this paper with systems that do not have barrel constraints. The demonstration cases clearly show the trend of the beneficial impact with yield results, as a yield increase of 36.3% to 39.2% is garnered by one example. Considerations in simulating the realistic optomechanical system will assist in controlling cost and providing more accurate simulation results.

Original languageEnglish (US)
Title of host publicationOptical System Alignment, Tolerancing, and Verification VII
ISBN (Print)9780819496942
StatePublished - 2013
EventOptical System Alignment, Tolerancing, and Verification VII - San Diego, CA, United States
Duration: Aug 25 2013Aug 26 2013

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 VII
Country/TerritoryUnited States
CitySan Diego, CA


  • Lens design
  • Monte Carlo
  • Optical tolerancing
  • Optomechanical design

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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