CIEstandardeja

CIEstandardeja refers to the set of international standards issued by the International Commission on Illumination (CIE) that govern color measurement, color appearance, and lighting performance. The CIE, established in 1913, coordinates international efforts to develop and disseminate these standards for use in industry, research, and regulation, and its standards are widely adopted worldwide.

The scope includes colorimetric data, color spaces (for example CIE XYZ, and derived L*a*b*, L*u*v*), spectral data, and measurement procedures. The organization defines two standard observers to model human vision: a 2-degree observer (1931) and a 10-degree observer (1964). It also defines chromaticity diagrams and standard illuminants such as Illuminant A (incandescent) and daylight variants D50, D65, D75 used to specify color under reference lighting.

CIEstandardeja are published as Technical Reports or International Standards. They guide product specification, testing, and quality control in lighting, photography, display manufacturing, and color science. While not legally binding, they carry international authority and are often incorporated into national regulations and industry contracts.

Impact and examples: color measurement devices are calibrated to CIE standards; color management systems use CIE color spaces; lighting designers reference CIE illuminants and colorimetric data to ensure consistent appearance across devices and environments.

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