Optical device with a high collection efficiency and cytofluorimeter making use of the same

摘要

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.