METHOD FOR LOCATING AN OPTICAL IDENTIFICATION ON A LABORATORY ANALYSIS CUVETTE

The invention relates to a method for locating an optical identification (54, 56) on a cylindrical laboratory analysis cuvette (12) containing a reagent (34). The cuvette is inserted in a vertical cuvette shaft of a laboratory analysis apparatus having a cuvette-rotating device, wherein a digital camera having an axial resolution of more than 10 lines is associated with the cuvette shaft, and wherein in fixed geometric association with the identification (54, 56) the cuvette (12) comprises an axial locating bar (50) of fixed bar width. The method comprises the following method steps: reading in at least four non-contiguous lines of the digital camera, searching for the identification: if at least three adjacent read-in lines comprise approximately axially superimposed reflection signals of the locating bar (50) in the bar width: rotating the cuvette (12) about an angle a, ß corresponding to the geometric arrangement in such a manner that the identification (54, 56) is aligned with the digital camera, and reading in the identification (54, 56) by reading out a plurality of contiguous lines of the line camera.