Abstract: An object of the invention is to provide a technique that can accurately determine whether a liquid surface height of a liquid is abnormal when a dispensing probe dispenses the liquid. An automatic analyzer according to the invention sets a normal range and an abnormal range above and below a previously detected liquid surface height, regards a liquid surface height as normal when a liquid surface is detected in the normal range, and regards a liquid surface height as abnormal when a liquid surface is detected in the abnormal range. When a liquid surface is detected above or below a range in which a variation is added to the previously detected liquid surface height, a liquid surface height is also regarded as normal under a predetermined condition.

Abstract: To obtain a highly reliable measurement result, this invention is characterized by comprising: an automated analyzer (100) having a sample probe (122) for drawing in and discharging a sample and a sample probe cleaning unit (110) having a sample dispensing unit (121) for at least moving the sample probe (122) from the position of a sample container (152) in which the sample is accommodated to the position of a reaction container (131) into which the sample is to be dispensed, and being configured to carry out first cleaning in which cleaning water is discharged around the sample probe (122) between the drawing in of the sample from the sample container (152) and the discharging of the sample into the reaction container (131); and a controller (200) for controlling the discharging and stopping of the cleaning water in the first cleaning for a prescribed inspection item.

Abstract: While illuminating light is separated into a first wavelength component illuminating light and second and third wavelength component illuminating lights by a dichroic mirror, the first illuminating light is reflected off a first liquid crystal display element to form a first wavelength component image light which is then reflected off or passed through the polarizing surface of a first polarizing beam splitter, whereas one of the second and third wavelength component illuminating lights has its polarizing surface 90°-converted by a ½ phase difference plate, the other one is passed through the plate without having its polarizing surface converted, the second and third wavelength components are separated from each other by a second polarizing beam splitter and respectively reflected off second and third liquid crystal display elements to obtain second.

Abstract: While illuminating light is separated into a first wavelength component illuminating light and second and third wavelength component illuminating lights by a dichroic mirror, the first illuminating light is reflected off a first liquid crystal display element to form a first wavelength component image light which is then reflected off or passed through the polarizing surface of a first polarizing beam splitter, whereas one of the second and third wavelength component illuminating lights has its polarizing surface 90°-converted by a ½ phase difference plate, the other one is passed through the plate without having its polarizing surface converted, the second and third wavelength components are separated from each other by a second polarizing beam splitter and respectively reflected off second and third liquid crystal display elements to obtain second and third wavelength component image lights that are again synthesized, then three wavelength component image lights are synthesized by a dichroic pris