Spatial light modulator based phase contrast image projection system
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United States of America Patent
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Apr 16, 1996
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N/A
app pub date -
Jan 9, 1995
filing date -
Sep 15, 1993
priority date (Note) -
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Abstract
A phase-contrast DMD based image system 36 for projecting an amplitude and phase modulated image. A flexure beam DMD array 34 is used to allow analog phase modulation of reflected light 38. The phase modulation is converted to amplitude modulation by the phase-contrast imaging optics including a phase plate 42. The resulting amplitude modulated wave is flicker-free and does not need to be synchronized to optical image sensors.
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