Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1989-07-11
1995-04-18
Pham, Hoa Q.
Optics: measuring and testing
For optical fiber or waveguide inspection
356 39, 356336, 435724, 435 30, 435 34, 435 39, 436 10, 436 52, G01N 2100, C12Q 100
Patent
active
054083079
ABSTRACT:
In a cell analyze apparatus, a light beam is irradiated onto cells (or particles like the cells) flowing through a flow cell so as to measure cell light information for each cell with respect to a plurality of parameters (for example, the forward scattered light intensity, the right angle scattered light intensity and the intensity of fluorescence by different dye). Based on a minimal point of a histogram associated with the cell light information with respect to one or more parameters, the cell population is subdivided into fractions. When the minimal point is missing in the histogram, the parameters above are converted by use of a predetermined conversion expression (for example, a coordinate conversion is effected on the parameters) such that a minimal point is detected from the histogram of cell light information related to the new parameters obtained by the conversion, thereby subdividing an objective cell population.
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Hanafusa Masahiro
Hirako Shin-ichi
Kaede Kunio
Nakatsuji Yoshihiro
Nishimura Michio
Omron Tateisi Electronics Co.
Pham Hoa Q.
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