Method and apparatus for flow type particle image analysis using

Details Method and apparatus for flow type particle image analysis using Method and apparatus for flow type particle image analysis using

1994-09-08

1996-10-01

McGraw, Vincent P.

Optics: measuring and testing

Blood analysis

356 73, G01N 1514

Patent

active

055615171

ABSTRACT:
A method and an apparatus for flow type particle image analysis generate a pulse light emission in any one of the odd and the even field image reading-out periods, and multiple exposure is prevented by prohibiting the next pulse light emission in the predetermined period after the emission. The method includes the steps of flowing a sample liquid in a flow cell, detecting particles passing through the flow cell by a laser beam, making a flash lamp emit light after the predetermined period from the particle detection, picking up a particle still image by a TV camera, and further preventing the multiple exposure by providing emission-prohibiting periods which are established by controlling the timings of flash lamp emission and image transfer with the TV camera, a flash lamp emission control circuit, and an image processing control circuit which are controlled by a central control part.

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