Optical measuring apparatus and specimen discriminating and dispensing apparatus

An optical measuring apparatus for measuring optical data of specimens, which are objects to be measured, dispersed in a sample fluid flowing within a flow passage by irradiating light to said specimens, comprising:

• a plurality of measuring sections each having a light irradiating section for irradiating light to said specimens and a light receiving section for receiving the optical data acquired by irradiating the light to said specimens;
• a flow rate calculating section implemented by circuitry, the circuitry configured to calculate values of flow rate of said specimens based on a difference of measured times of said optical data measured by said plurality of measuring sections with respect to said specimens and a distance between said plurality of measuring sections;
• and
• a flow rate graph generating section implemented by the circuitry, the circuitry configured to generate flow rate graph data in which the values of flow rate of said specimens calculated by said flow rate calculating section are arrayed in order of calculation in a time-series manner and outputting said generated flow rate graph data to a display section to display a flow rate graph,
• wherein said flow rate graph generating section includes an area range specifying section implemented by the circuitry, the circuitry configured to specify a desired graph area range within said entire flow rate graph data of said previously generated flow rate graph, acquire the plurality of values of flow rate of said specimens only within said specified graph area range of flow rate, and exclude unnecessary values of flow rate outside of said specified graph area range of flow rate to drop a variation of the frequency of optical data of specimens.