Diffraction Grating With a Spatially Varying Duty-Cycle
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United States of America Patent
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app pub date -
Sep 7, 2006
filing date -
Sep 14, 2005
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Abandoned
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Abstract
A diffractive optical element is disclosed. The optical element comprises a grating having a periodic linear structure in at least one direction. The linear structure is characterized by non-uniform duty cycle selected to ensure non-uniform diffraction efficiency.
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