WSS with pixel gap compensation
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United States of America Patent
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Feb 18, 2014
Grant Date -
Jan 26, 2012
app pub date -
Jul 20, 2011
filing date -
Jul 20, 2010
priority date (Note) -
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Abstract
An optical device compensates for decreased transmission of light caused by gaps between mirrors of a MEMS array. The optical device employs MEMS mirrors having non-reflecting regions on them disposed such that reflecting regions of the MEMS mirrors have substantially the same optical throughput, or an additional optical element having increased transmission at those spatial positions where light impinging on the gaps passes through. Alternatively, the optical device may employ a filter having spectral transmission characteristic with increased transmission at those wavelengths of dispersed light that impinge on the gaps.
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