Method and apparatus for generating reconstructions of information encoded in ambient light modulators
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United States of America Patent
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Sep 11, 2012
Grant Date -
Jul 29, 2010
app pub date -
Jun 22, 2007
filing date -
Jun 28, 2006
priority date (Note) -
Expired
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Abstract
The present invention relates to a method and device for the generation of reconstructions of information encoded on spatial light modulators by way of illumination with coherent incident waves. The invention includes the following steps: Splitting of the incident wave into at least two incident sub-waves, Modulation of the incident sub-waves with the help of selected apodization functions so to form modulated incident sub-waves, Direction of the modulated incident sub-waves towards the corresponding, spatially separated and pixel-matrix-shifted spatial light modulators, Diffraction of the modulated incident sub-waves at the encoded pixels of the respective spatial light modulators, Additive combination of the sub-waves emitted by the respective spatial light modulators to form one common emitted wave, and Transformation of the emitted wave into the Fourier plane with the help of a projection system.
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