| abstract |
An automatic analyzer capable of reducing the difference in optical axis and light amount distribution with respect to light of each wavelength used for measurement is provided. An automatic analyzer generates light having a wavelength of 340 nm to 800 nm in combination with a light source that generates light having a central wavelength of 340 nm or less, and light that is excited by the light of the light source and transmitted through the light source. A reaction cell that holds a reaction solution in which a phosphor, a condenser lens, at least one slit, and a sample and a reagent are mixed, and receives light from the light source and light from the phosphor; and the reaction cell The light source, the phosphor, the condenser lens, and the slit are disposed along a straight line that coincides with the optical axis, and the width of the opening of the slit Is less than or equal to the width of the light beam that forms the image of the light source at the position of the slit. [Selection] Figure 2 |