Split achromatic doublet problem and lens element centering in a drop-in barrel

José Sasián, David Brady, Martin Kebschull

Research output: Contribution to journalArticlepeer-review

Abstract

A split doublet is more sensitive to aberration because the inner surfaces are typically strong in curvature and can independently misalign. To improve the centering of a lens element, we discuss using a strip of material inserted in the gap between the lens edge and the barrel. This technique has the benefit of relaxing the barrel inner diameter tolerance. Four examples are provided where lens centering was estimated to range between 0.025 and 0.050 mm.

Original languageEnglish (US)
Article number105112
JournalOptical Engineering
Volume61
Issue number10
DOIs
StatePublished - Oct 2022

Keywords

  • Achromatic doublet
  • Brass strip
  • Lens alignment
  • Lens centering
  • Misalignment aberrations
  • Opto-mechanics.

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Engineering

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