Glit transmission spectrum is a kind of spectrum that appears after light passes through a sample. By measuring the transmission spectrum of a sample, it characterizes some properties of the sample. It is widely used in scientific research and industry.
The transmission spectrum measurement is divided into a liquid transmission measurement and a solid transmission measurement depending on the morphology of the sample to be measured.

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The above-mentioned flake solid transmission spectrum measurement diagram is that the light source hits the sample to be measured through the silica fiber, and the light transmitted through the sample is transmitted to the fiber optic spectrometer through the optical fiber, and the photoelectric conversion is realized in the form of a spectrum.