Neutral glass (Neutral glass filter)
filters are used to check the absorption accuracy in the visible spectral range of a photometer. They show a largely wavelength-independent constant transmission in a limited spectral range; other designations are neutral glass or neutral density glass.
Neutral glass filter
filters are used to check the absorption accuracy in the visible spectral range of a photometer. They show a largely wavelength-independent constant transmission in a limited spectral range; other designations are neutral glass or neutral density glass.
Neutral glass filters
filters are used to check the absorption accuracy in the visible spectral range of a photometer. They show a largely wavelength-independent constant transmission in a limited spectral range; other designations are neutral glass or neutral density glass.
NIR (infrared radiation range)
also abbreviated to IR radiation, is invisible electromagnetic ? radiation in the long-wavelength range of the optical spectrum. The wavelength range of IR radiation is between 780 nm and 1 mm. For further identification, this radiation is divided into near infrared (NIR), mid and far IR. Infrared radiation causes heat sensations, therefore it is often also called heat radiation.