Light scattering type smoke detector
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United States of America Patent
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Jul 8, 2014
Grant Date -
May 13, 2010
app pub date -
Jan 7, 2010
filing date -
Nov 17, 2003
priority date (Note) -
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Abstract
A light scattering type smoke sensor includes a sensor body, light-emitter for emitting light toward an open smoke-sensing space and outputting a light-received signal according to the amount of scattering light received, and a fire judging unit for judging whether fire occurs or not on the basis of the amount of received light determined on the basis of the outputted light-received signal.
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