Calibration of projector lens distortions

F. Hüe, C. L. Johnson, S. Lartigue-Korinek, G. Wang, P R Buseck, M. J. Hÿtch

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The distortions introduced into high-resolution transmission electron microscope (HRTEM) images by the projector lens system are an important source of systematic error for quantitative displacement and strain determination. Using geometric phase analysis of images of perfect crystals, we measured these errors for two different transmission electron microscopes. Local magnification varies by as much as 5%, and rotation can reach 2° across a typical image. Our experimental results are compared with theory, and optical pincushion and spiral distortion coefficients are determined. A method for calibrating and removing these distortions is presented that enables quantification to 0.1% strain and 0.1° rotation across the whole field of view. This calibration is also critical for the accurate measurement of local lattice parameters from HRTEM images.

Original languageEnglish (US)
Pages (from-to)181-190
Number of pages10
JournalJournal of Electron Microscopy
Volume54
Issue number3
DOIs
StatePublished - Jun 2005

Fingerprint

projectors
Calibration
Lenses
Electron microscopes
lenses
Electrons
electron microscopes
Wave transmission
Systematic errors
Lattice constants
high resolution
Research Design
calibrating
magnification
systematic errors
field of view
lattice parameters
Crystals
coefficients
crystals

Keywords

  • Geometric phase
  • HRTEM
  • Lattice parameter determination
  • Optical distortions
  • Projector lens
  • Strain

ASJC Scopus subject areas

  • Instrumentation

Cite this

Hüe, F., Johnson, C. L., Lartigue-Korinek, S., Wang, G., Buseck, P. R., & Hÿtch, M. J. (2005). Calibration of projector lens distortions. Journal of Electron Microscopy, 54(3), 181-190. https://doi.org/10.1093/jmicro/dfi042

Calibration of projector lens distortions. / Hüe, F.; Johnson, C. L.; Lartigue-Korinek, S.; Wang, G.; Buseck, P R; Hÿtch, M. J.

In: Journal of Electron Microscopy, Vol. 54, No. 3, 06.2005, p. 181-190.

Research output: Contribution to journalArticle

Hüe, F, Johnson, CL, Lartigue-Korinek, S, Wang, G, Buseck, PR & Hÿtch, MJ 2005, 'Calibration of projector lens distortions', Journal of Electron Microscopy, vol. 54, no. 3, pp. 181-190. https://doi.org/10.1093/jmicro/dfi042
Hüe F, Johnson CL, Lartigue-Korinek S, Wang G, Buseck PR, Hÿtch MJ. Calibration of projector lens distortions. Journal of Electron Microscopy. 2005 Jun;54(3):181-190. https://doi.org/10.1093/jmicro/dfi042
Hüe, F. ; Johnson, C. L. ; Lartigue-Korinek, S. ; Wang, G. ; Buseck, P R ; Hÿtch, M. J. / Calibration of projector lens distortions. In: Journal of Electron Microscopy. 2005 ; Vol. 54, No. 3. pp. 181-190.
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