Sample e.g. opaque solid body, dispersion measuring device for use in e.g. process control field, has dispersion receiver arranged between radiation and reception section and lens, and aligned in proximity of lens for measuring dispersion

摘要

The device has radiation sources and transmission receivers (5) arranged in a radiation and reception section. A lens (3) produces parallel radiations from diverged radiations radiated from the section, where the parallel radiations penetrate through a sample to a reflector. A dispersion receiver (6) is arranged between the section and the lens, and is aligned in the proximity of the lens for measuring the dispersion from the sample.