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Electrically switchable diffractive optical element for image processing
Optics Letters
|October 16, 2009
Abstract:
An electrically switchable diffractive optical element has been built based on a computer-generated phase hologram and a liquid-crystal layer. The design of the diffractive optical element and the fabrication and performance of the device are discussed. The application of the device in a machine vision system for optical surface inspection is shown.

