METHOD FOR MEASURING SCATTERED LIGHT, METHOD FOR URINALYSIS, AND SCATTERED LIGHT MEASURING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a measuring method and apparatus of high accuracy and practicality for measuring scattered light which is produced when light propagates through a solution for examination, while eliminating the influences of scattered light produced by contaminants inside and on the surface of an optical window, differences in refractive index and light transmission factor between different solutions for examination, and interference by suspended particles etc. SOLUTION: The scattered light which propagates within a predetermined angle is measured perpendicular to the propagation direction of light propagating within the solution for examination. The position of the optical axis of the light propagating within the solution for examination and/or the position of a light sensor along the direction of the optical axis of the light are set so that the influence of the scattered light produced inside and on the surface of the optical window is not greater than a predetermined value within a practically permissible range. In this case, the positions are preferably set so that the scattered light produced in the area closest to the surface of the optical window facing the solution for examination is measured.