| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly-accurate optical measuring device which acquires highly-reliable measurement result, even when illumination light from a built-in light for illumination provided in the device or light from the outside of the device, enters the device. SOLUTION: A corrected light quantity is determined by subtracting a reference value from a light receiving quantity when irradiation light 15 is lit, by using the light receiving quantity of a light receiving element 5 when the irradiation light 15 by a light emitting element 1 is put out as a reference value. In this case, the light emitting element 1 repeats lighting and putting-out of light alternately in a plurality of times, and the mean value or a middle value of the corrected light quantities to the number corresponding to the number of times of lighting of the light emitting element, acquired by subtracting the reference value from each light receiving quantity when the light emitting element 1 is lit, is used as the final corrected light quantity. Then, the concentration of an analysis object in a specimen sample 11 is calculated based on the corrected light quantity. COPYRIGHT: (C)2009,JPO&INPIT
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