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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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
instant cameraA camera that takes and prints the photograph in one self-contained unit. For many decades, instant camera was synonymous with the Polaroid brand. For a while, Kodak offered an instant camera but was forced to stop production after Polaroid filed a patent infringement lawsuit. In the early 1980s, Fujifilm entered the instant camera market and has continued to offer products ever since.
How It Works
When a picture is taken, cyan, magenta and yellow color layers in the film are exposed to light. When it is pulled out of the camera, rollers squeeze a chemical strip at the edge of the film over the surface, which reacts with chemicals in the film to cause it to develop.
|The First Polaroid|
|Invented in 1947 by Edwin Land, the Land Camera made its debut in 1948. (Image courtesy of PLR Ecommerce, LLC, www.polaroid.com)|
|Polaroid ZINK Camera|
|Starting in 2008, Polaroid cameras switched to the ZINK film technology. This camera prints 2x3" photos. See ZINK. (Image courtesy of PLR Ecommerce, LLC, www.polaroid.com)|
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