| 摘要 |
The invention concerns a refractometer with a measuring prism on whose measuring surface a sample to be tested can be mounted, which sample can be illuminated by a light beam emitted by a source of light under a range of angles that includes the critical angle for total reflection, and with a receiver for receiving the reflected light, in which an optical device that decomposes the reflected light into a color spectrum is mounted in the path of the reflected light between the measuring surface and the receiver.
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