Radiant energy imager using null switching
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United States of America Patent
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Jan 11, 2011
Grant Date -
Apr 21, 2011
app pub date -
Aug 8, 2008
filing date -
Aug 8, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
In some aspects, the present invention embodies both the method and apparatus for converting a pattern of irradiation to a visible image. An embodiment of the present invention provides an array of micro-electro-mechanical sensors with each sensor includes a deflectable micro-cantilever, responsive to absorbed incident radiation and to an applied repulsive electrostatic field. In an aspect, the sensor device also includes a null-sensing circuit coupled to a switch contact on or near the substrate, which senses when the micro-cantilever reaches its null location, by electrical connection with an upper switch contact on the micro-cantilever. Other embodiments are also described.
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