Abstract
Spatial light modulators have substantially improved in the past few years. Currently, commercial 256 by 256 pixel liquid crystal binary SLMs are available with an operating speed of a millisecond and a pixel spacing of 20 microns for a price of $15,000. Additional improvements in speed by orders of magnitude should be available in the next few years, and micro-mechanical flexure and deformable membrane devices will probably become available.
© 1995 Optical Society of America
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