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Optical detection system for flow cytometry

  • US 7,486,387 B2
  • Filed: 04/04/2007
  • Issued: 02/03/2009
  • Est. Priority Date: 06/29/2001
  • Status: Expired due to Term
First Claim
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1. An optical detection system for analyzing predetermined characteristics of a flow stream, the flow stream having a central axis along the direction of flow, the optical detection system comprising:

  • one or more light sources positioned on a first side of the flow stream for providing light through the flow stream;

    lens means positioned on the first side of the flow stream for focusing the light from each of the one or more light sources to a common focal point or region located on a second opposite side of the flow stream;

    light receiving means for receiving the light from the one or more light sources, and for providing at least one signal in response thereto, at least a portion of the light receiving means located at or near the common focal point or region of the lens means; and

    processing means for receiving the at least one signal from the light receiving means and for using the at least one signal for analyzing the predetermined characteristics of the flow stream.

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