keystone distortion

keystone distortion

[′kē‚stōn di′stȯr·shən]
(communications)
Distortion produced by scanning in a rectilinear manner, with constant-amplitude sawtooth waves, a plane target area which is not normal to the average direction of the beam.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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All three models offer auto set-up, which identifies and selects the input source, corrects keystone distortion, sharpens focus, and adjusts for wall color.
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