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sklademVydáno: 1974-01-01
IEC 60441:1974
Photometric and colorimetric methods of measurement of the light emitted by a cathode-ray tube screen
Méthodes de mesure photométriques et colorimétriques de la lumière émise par un écran de tube à rayons cathodiques
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| Označení normy: | IEC 60441:1974 |
| Vydáno: | 1974-01-01 |
Popis
IEC 60441:1974
Describes two methods: the first method uses a spectroradiometer, which gives a spectral energy distribution of the light source being measured from which the chromaticity can be calculated: the second method uses the tristimulus colorimeter, which employs a combination of a photosensitive device and a filter to reproduce the distribution of spectral tristimulus values for the appropriate field angle.