Polaroid(redirected from Polariod)
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Polaroid:see Land, Edwin HLand, Edwin Herbert,
1909–91, American inventor and photographic pioneer. While at Harvard, Land became interested in the properties and manipulation of polarized light.
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1. a type of plastic sheet that can polarize a transmitted beam of normal light because it is composed of long parallel molecules. It only transmits plane-polarized light if these molecules are parallel to the plane of polarization and, since reflected light is partly polarized, it is often used in sunglasses to eliminate glare
2. Polaroid Land Camera any of several types of camera yielding a finished print by means of a special developing and processing technique that occurs inside the camera and takes only a few seconds to complete