Hioki 3640-20, Инструкция по эксплуатации

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5.2 Relative Spectral Response Characteristics in the Visible Spectrum
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3640-20
5.2 Relative Spectral Response
Characteristics in the Visible Spectrum
Human perception of brightness ranges from 360 nm to 830
nm in the wavelength and is the maximum at 555 nm.
The International Commission on Illumination (CIE) has
established comparative standards for luminosity, setting the
maximum perception for 1 and indicating the amount of
perception of each wavelength by the relative value, and
calculating the average of many people. In the 3640-20, the
relative spectral response characteristics are close to the
comparative standards for luminosity.
The deviation from the comparative standards for
luminosity is determined by the fs value of JIS standard C
1609-1993.