Optical system and method for detecting particles
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United States of America Patent
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Issued Date -
May 3, 2007
app pub date -
Oct 31, 2005
filing date -
Oct 31, 2005
priority date (Note) -
Abandoned
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Abstract
Embodiments of the invention include a particle detection system that includes a light emitting source, a non-collimating reflector, a collimating reflector, and a detector. Light from the light emitting source is directed by the non-collimating reflector to an area through which a particle stream may be transmitted. Fluorescent light from the light striking particles is redirected to the collimating reflector and then on to the detector. Other embodiments include a single pump used to pull a pair of fluid flows through the detection system. Other embodiments include a plurality of light emitting sources whose light is directed to a particle stream by a single reflector. Other embodiments include a method for detecting particles.
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