Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch

Bertrand Lens

  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_1250

n An auxiliary, low-power lens which may be inserted in the bodytube of the microscope between the eyepiece and the objective for observing the back focal plane of the objective; useful for conoscopic observations in crystal optics and for checking microscope illumination quality.

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© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Jan W. Gooch
    • 1
  1. 1.AtlantaUSA