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glossary

Transmission

Transmission means the light transfer of an optical material. The part of the luminous flux which completely permeates a transparent component is called the degree of light transmission. It is a function of the chemical and physical structure and varies according to the wavelength. The intensity of the incident light is reduced by reflexion on both surfaces and by absorption within the material. The transmission range is the range of the electromagnetic spectrum in which the absorption is much higher than the transmission.

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