Displacement-based focusing of an IR camera
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United States of America Patent
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Mar 25, 2014
Grant Date -
Jul 14, 2011
app pub date -
Jan 8, 2010
filing date -
Jan 8, 2010
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Abstract
An IR camera includes a first optical subsystem for generating an IR image of an object and a second optical subsystem for generating a visual light image of the object. The IR camera further includes a focusing device for focusing the first optical subsystem. The IR camera also has a processor for determining a focus distance for focusing the first optical subsystem on the object. The processor determines the focus distance based on a displacement of a feature in the visual light image.
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