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Flow imaging cytometer

  • US 5,159,398 A
  • Filed: 09/05/1991
  • Issued: 10/27/1992
  • Est. Priority Date: 02/27/1991
  • Status: Expired due to Term
First Claim
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1. A flow imaging cytometer comprising:

  • a flow cell formed to include a flat flow path for causing a specimen solution containing particle components to be sensed to flow as a flat stream;

    a first light source arranged on a first side of said flow cell for irradiating the specimen solution in said flow cell with light the quantity of which is switched;

    a second light source arranged on a first side of said flow cell for irradiating the specimen solution in said flow cell with pulsed light;

    first image capturing means arranged on a second side of said flow cell for capturing still pictures of particle components in the specimen solution irradiated with high-luminance pulsed light from said first light source and particle components irradiated with the light from said second light source;

    second image capturing means arranged on the second side of said flow cell for capturing still pictures of particle components in the specimen solution irradiated continuously with low-luminance light from said first light source;

    processing means for executing prescribed analysis based upon image data from said first and second image capturing means; and

    control means for detecting the particle components based upon the image data from said second image capturing means, and on the basis of such detection, first for switching said first light source over to irradiation with the high-luminance light, and then operating said second light source following a prescribed delay, within an image capturing period of said first image capturing means;

    wherein said first light source is a light source for exciting fluorescence, and the image resulting from said first light source and the image resulting from said second light source are each captured in a different area on a light-receiving surface of said first image capturing means.

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