Particle analyzing apparatus with index projecting optical syste

Details Particle analyzing apparatus with index projecting optical syste Particle analyzing apparatus with index projecting optical syste

1986-05-28

1987-12-29

McGraw, Vincent P.

Optics: measuring and testing

With plural diverse test or art

250201, 356 73, 356318, 356339, G01N 2101, G03B 310

Patent

active

047157089

ABSTRACT:
In an apparatus for analyzing a particle flowing in a flow section of a flow cell, at least two non-parallel index beams are projected onto the flow cell to detect a focusing state of a measuring optical system with respect to the flow section, the beams reflected by first and second walls of the flow cell are detected, and the obtained output pattern is used to determine the focusing state.

REFERENCES:
patent: 4595271 (1986-06-01), Suda et al.

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