Standard

NEK IEC 60441:1974

Jan 1974 Published

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Language English

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Abstract

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.

Document information

Standard from NEK
Published: 1 January 1974
Edition: 1.0
Version: 1
Document type: NAT
ISBN:

ICS 31.120
National Committee NEK/NK110

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Adopted from: IEC 60250:1969 ED1

NEK IEC 60441:1974

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Abstract

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