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Systems, devices, and methods including a dark-field reflected-illumination apparatus

  • US 9,310,289 B2
  • Filed: 08/22/2014
  • Issued: 04/12/2016
  • Est. Priority Date: 02/10/2010
  • Status: Expired due to Fees
First Claim
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1. A method of modulating a specimen-background dark-field micrograph contrast, comprising:

  • varying an illumination-collection spacing by varying at least one of an illumination angle of incidence or a collection aperture dimension, based on a detected dark-field contrast differential.

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