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Polarizing Microscopes

These are use for geology for mineral thin section, textile, and forensic sciences for fiber analysis, etc. Simple polarizing filters can be added to ordinary brightfield microscopes. Although much neglected and undervalued as an investigative tool, polarized light microscopy provides all the benefits of brightfield microscopy and yet offers a wealth of information, which is simply not available with any other optical microscopy technique. It is illumination technique in which polarizing filters are above (Analyzer) and below (Polarizer) the specimen. When there filters are engaged and crossed a black-out effect bright against the black background. True Polarizing microscopes, are called petrographic microscopes, will have a circular rotating stage, a centerable nosepiece, and a Bertrand lens for observation of conascopic images (interference figures).