Spatial light modulator based phase contrast image projection sy

Optical: systems and elements – Optical modulator – Light wave directional modulation

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359259, 359263, 359276, G02F 131

Patent

active

055088414

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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Horsky et al., Electron-beam-addressed membrane mirror light modulator for projection display, 10 Jul. 1992, Applied Optics, N.Y.N.Y., vol. 31, No. 20, pp. 3980-3990.
Optron Systems, Inc. Brochure, Jan. 1, 1992, 4 pages, "Flickerless Infrared Scene Projectors & Electron-Beam-Addressed Membrane Light Modulator".

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