Optics: measuring and testing – With plural diverse test or art
Patent
1985-06-17
1987-06-16
Evans, F. L.
Optics: measuring and testing
With plural diverse test or art
2504612, 250573, 350416, 356246, 356318, G01N 2105, G01N 2164
Patent
active
046732896
ABSTRACT:
Optical device with a high collection efficiency and cytofluorimeter using the same. This device permits the light excitation of a flow of material directed along an axis and able to emit light when it receives it and/or collects the light emitted by said flow. It comprises a first optical element and a spherical analysis chamber which can be penetrated by the flow, defined by the element and allowing a center of symmetry. The element has a convex spherical dioptre allowing an axis of symmetry passing through the center of the chamber and said element is positioned in such a way that the axis of the flow passes through the center of the chamber. Application to the analysis of a flow of biological cells.
REFERENCES:
patent: 3788744 (1974-01-01), Friedman et al.
patent: 3989381 (1976-11-01), Fulwyler
patent: 4336029 (1982-06-01), Natale
patent: 4348107 (1982-09-01), Leif
patent: 4500641 (1985-02-01), van den Engh et al.
patent: 4584604 (1986-04-01), Guichard et al.
Tyrer, IEEE Potentials, Dec. 1984, p. 20.
Commissariat a l''Energie Atomique
Evans F. L.
Nilles James E.
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