Flow imaging cytometer

Details Flow imaging cytometer Flow imaging cytometer

1991-09-05

1992-10-27

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

2504612, 356 39, 356417, 356 23, 382 6, G01N 3348, G01N 2164, G06K 920

Patent

active

051593980

ABSTRACT:
A white-light image and a fluorescent image are capable of being captured by a single video camera, and a single light source for producing exciting light is used to pick up the fluorescent image and monitor arrival of particles to the image capturing area. Specifically, besides a strobe light source, a light source, the output of which normally is low, is provided for exciting fluorescence and for monitoring cell flow-through. An image intensifier is used in the light-receiving system of the fluorescent image and is supplied with a voltage the size and timing of which are controlled in such a manner that the irradiation of a cell with the strobe light when the white-light image is captured will not have an adverse effect upon the aforementioned light-receiving system. This makes it possible to pick up two images each in a different zone on the light-receiving surface of image capturing means.

REFERENCES:
patent: 3992112 (1976-11-01), Adrion
patent: 4338024 (1982-07-01), Bolz et al.
patent: 4786165 (1988-11-01), Yamamoto et al.
patent: 5093866 (1991-03-01), Hamilton et al.

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