| 摘要 |
PURPOSE:To measure diverged light and many kinds of fluorescence wavelengths at the same time with a single arc lamp light source by forming the incidence surface of a flow cell almost at right angles to the optical axis of exciting light and the projection surface at an acute angle to the incidence surface. CONSTITUTION:The incidence surface of the flow cell 8 for the exciting light is formed almost at right angles to the optical axis of exciting light and the projection surface is formed crossing the incidence surface at the acute angle to form a triangular flow cell 8 whose cross section is triangular. Then, the rays of light from a mercury arc lamp 1 are made incident on the flow cell 8 through an exciting light wavelength selective filter 4, a slit 5 and a condenser lens 7 to form an image crossing the thin flow of a flow channel. Then, light scattered by each blood cell in a sample is cut off by a shield plate 10 except narrow-angle scattered angle 18 and then converted photoelectrically as a front scattered light intensity signal, which is sent to a data analyzing part 20 to integrate, classify and calculate various pieces of information on particle detection. |
