Patent ID: 9347870
Filing Date: 2016-05-24
CPC Classification: G01N

Claim Text:
1. A device for photometrically or spectrometrically examining a liquid sample, comprising a cuvette, which can be arranged in the beam path between a radiation source and a radiation detector and which accommodates the liquid sample to be examined, a radiolucent inlet section for coupling in radiation produced by means of the radiation source, which radiation interacts with a sample volume, and a radiolucent outlet section for coupling out radiation intended to be detected in the radiation detector, wherein the inlet section has an inlet surface essentially spherically convexly curved in such a way and the outlet section of said cuvette has an outlet surface essentially spherically convexly curved in such a way that the incident radiation is focused in the manner of a converging lens, the inlet surface and the outlet surface being integrally formed with a portion of the cuvette containing the liquid sample, wherein the radiation illuminated directly at the inlet surface is divergent at the inlet surface.