Flow cytometry apparatus with improved light beam adjustment

Details Flow cytometry apparatus with improved light beam adjustment Flow cytometry apparatus with improved light beam adjustment

1985-07-29

1991-02-05

Rosenberger, Richard A.

Optics: measuring and testing

By particle light scattering

With photocell detection

G01N 2164

Patent

active

049899775

ABSTRACT:
A flow cytometry apparatus for determining one or more characteristics of particles or the like flowing in a liquid stream includes a nozzle for generating a liquid flow stream for moving particles therethrough substantially one at a time. A light source provides a beam of focused light to illuminate the particles moving in the stream. A beam steering member is positioned to adjust the focal point of the light beam on the particles by refracting the light beam to cause a displacement of the focal point. At least one detector is provided for detecting light and for associating that light with one or more characteristics of each particle.

REFERENCES:
patent: 3826364 (1974-07-01), Bonner et al.
patent: 3838912 (1974-10-01), Arimoto et al.
patent: 3941477 (1976-03-01), Schodl
patent: 4243318 (1981-01-01), Stohr
patent: 4293221 (1981-10-01), Kay et al.
patent: 4577964 (1986-03-01), Hansen, Jr.

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