Optical processing
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United States of America Patent
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Nov 3, 2009
Issued Date -
N/A
app pub date -
Sep 1, 2006
filing date -
Sep 3, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
To operate an optical device comprising an SLM with a two-dimensional array of controllable phase-modulating elements groups of individual phase-modulating elements are delineated, and control data selected from a store for each delineated group of phase-modulating elements. The selected control data are used to generate holograms at each group and one or both of the delineation of the groups and the selection of control data is/are varied. In this way upon illumination of the groups by light beams, light beams emergent from the groups are controllable independently of each other.
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