half'-wave plate'

Pronunciation: (haf'wāv", häf'-), [key] Optics.
a crystal thin enough to cause a phase difference of 180° between the ordinary and extraordinary rays of polarized light, thereby changing the direction of the plane of polarization. Cf. quarter-wave plate.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

half volleyhalf-wave rectifier


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