A microscope that utilises polarised light to form a highly magnified image of an object. polarising microscopes play an important role in crystallography, petrography, microchemistry, and biology. Although all light microscopes compare poorly with electron microscopes with respect to image resolution, polarised light microscopes have the unique ability to deliver information about the submicroscopic structure of the objects being examined. They also have the advantage of being relatively nondestructive, and may be used safely with living cells. polarised light interactions with electromagnetically anisotropic structures, down to atomic dimensions, can be measured by polarised light microscopy. The sensitivity of polarised light microscopy as well as its importance to biology have been enhanced by the use of video technology.