Multi-stage Lyot filter and method
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United States of America Patent
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Apr 23, 2013
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N/A
app pub date -
Dec 14, 2011
filing date -
Dec 14, 2011
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Abstract
According to an embodiment of the disclosure, a multi-stage Lyot filter comprises a plurality of prisms, a polarizing block, and a non-rotating, single-adjustment birefringent element. Each of the prisms is configured to receive light and to reflect the light. The polarizing block is configured to provide polarization discrimination of the light. The birefringent element is configured to tune the Lyot filter. The prisms are further configured to pass the light through the birefringent element multiple times.
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