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Section 7-282 entries

7-28.1chromaticity coordinates in the CIE 1931 standard colorimetric system 7-28.2chromaticity coordinates in the CIE 1964 standard colorimetric system

7-28.1

chromaticity coordinates in the CIE 1931 standard colorimetric system

URNurn:iso:std:iso:80000:-7:ed-2:en:item:7-28.1

Download RDF.jsonld .ttl

https://metanorma.github.io/isq-smart/quantities/part-7/t7-28.1
urn:iso:std:iso:80000:-7:ed-2:en:item:7-28.1

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-7:ed-2:en:item:7-28.1

IEC

urn:iec:std:iec:80000-7:2019:::item:7-28.1

Designations

ENchromaticity coordinates in the CIE 1931 standard colorimetric system

FRcoordonnées trichromatiques dans le système de référence colorimétrique CIE 1931

Symbol

x, y, z

Notation systems

Rendered

x, y, z

AsciiMath

x, y, z

LaTeX

x , y , z

Definition

coordinates expressing the quotients of each of a set of three tristimulus values for the CIE 1931 standard colorimetric observer (tristimulus values for the CIE 1931 standard colorimetric observer) and their sum, expressed by

x = X / (X + Y + Z),

y = Y / (X + Y + Z),

z = Z / (X + Y + Z)

coordonnées exprimant les quotients de chacune des trois composantes trichromatiques pour l'observateur CIE 1931 de référence pour la colorimétrie (tristimulus values for the CIE 1931 standard colorimetric observer), par leur somme, exprimées par

x = X / (X + Y + Z),

y = Y / (X + Y + Z),

z = Z / (X + Y + Z)

Units

1

one

View related quantities →

Notes

Since $x + y + z = 1$ , two variables are sufficient to express chromaticity.

Étant donné que $x + y + z = 1$ , deux variables suffisent pour exprimer une chromaticité.

Concept HierarchyPendrill (2024)

1dimensionless quantitiesLevel 0 · Kind

Broader concepts

◇ dimensionless quantities

Ontology
isq:Quantity smart:TermEntry

Class Hierarchy

smart:Entity smart:TermEntryisq:Quantity

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t7-28.1

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	7-28.1
skosxl:prefLabel	"chromaticity coordinates in the CIE 1931 standard colorimetric system"@en
skosxl:altLabel	"x, y, z"@en
skos:definition	coordinates expressing the quotients of each of a set of three tristimulus values for the CIE 1931 standard colorimetric…
skos:note	Since stem:[x + y + z = 1], two variables are sufficient to express chromaticity.
isq:hasUnit	1 (one)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-7

Related Entities

isq:QuantityShape isq:part-7 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry