導入
ISO (国際標準化機構) 国家標準化団体の世界的な同盟です (ISO会員団体). 国際規格の開発は通常、ISO 技術委員会を通じて行われます。. 技術委員会が設立された主題に関心を持つ各加盟機関は、その委員会に代表される権利を有する。. ISO と連携する国際政府および非政府組織もこの作業に関与しています。. ISO は国際電気標準会議と緊密に連携しています。 (IEC) 電気の標準化に関するあらゆる問題について.

この文書の作成に使用される手順と、さらなるメンテナンスに使用される手順については、パートで説明されています。 1 ISO/IEC 指令の. 特に, さまざまな種類の ISO 文書に必要なさまざまな承認基準に注意を払う必要があります。. この文書は、ISO/IEC 指令パートの編集規則に従って作成されています。 2 (iso.org/directives を参照してください。).

この文書の特定の要素は特許権の対象となる場合があることに注意してください。. ISO は、そのような特許の一部またはすべてを特定する責任を負いません。. 文書の作成中に特定された特許権の詳細は、序論および/または ISO が受理した特許請求の範囲のリストに記載されています。 (iso.org/patentsを参照してください。).

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ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

自主的, related standards and conformity assessment related ISO specific terminology and express the meaning of and the ISO in the technical barriers to trade (未定) adhere to the principle of the world trade organization (WTO) information, please see the iso.org/iso/foreword.html.

This document has been prepared by the International Commission on Lighting (CIE) in collaboration with ISO/TC 274 Technical Committee (Light and Lighting).

The first edition of ISO/CIE 11664-1 cancels and replaces ISO 11664-1:2007 |CIE S 014-1:2006, which constitutes a minor revision including minor editorial updates.

ISO のすべての部品のリスト 11664 and ISO/CIE 11664 シリーズは ISO Web サイトで見つけることができます.

Any feedback or questions regarding this document should be directed to the user’s national standards body. A complete list of these institutions can be found at iso.org/members.html.

ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

導入
Colors with different spectral components may look similar. An important function of colorimetry is to determine whether a pair of such heterochromatic color stimuli look similar. The use of visual colorimeters for this purpose is hampered by variations in color matching between observers classified as having normal color vision. Visual colorimetry also tends to be time-consuming. For these reasons, colorimetry has long used a set of color matching functions to calculate the tristimulus value of a color: Equal tristimulus value of a pair of colors indicates that the color appearance of the two colors matches, when an observer applying the color matching function observes them under the same conditions. Using the standard set of color matching functions, it is possible to compare the tristimulus values obtained at different times and places.

1 範囲
This document specifies the color matching function for colorimetry. Two sets of color matching functions are specified.

ある) Color matching function of CIE 1931 standard colorimetric viewer.

This set of color matching functions represents the color matching properties of an observer with normal color vision, with a field of view size of about 1° to about 4° angular subtension, for vision at the level of clear vision adaptation.

b) Color matching function of CIE 1964 standard colorimetric viewer.

This set of color matching functions represents the color matching properties of observers with normal color vision, for field sizes with angular subtension greater than about 4°, and for visual and spectral power distributions with sufficiently high clear vision levels that no rod receptors of the retina are required to participate.

ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

2 規範的参照
次のファイルは、このドキュメントの要件の一部またはすべてを構成する方法でテキスト内で参照されています。. 日付の付いた参照については, 引用されたバージョンのみが適用されます. 日付のない参考文献については, リファレンスの新しいバージョン (改訂も含めて) 当てはまる.

CIE S 017: –, 1 ILV: International lighting vocabulary

3 用語と定義
この文書の目的のために, the terms and definitions given in CIE S 017 そして以下が適用されます.

ISO および IEC は、標準化のための用語データベースを次のアドレスで維持しています。:

– ISOオンライン閲覧プラットフォーム: iso.org/obp で入手可能

– IEC電子百科事典: electricpedia.org/ で入手可能

ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

3.1 Color stimulation function F l (私)

Describes the function of the spectral distribution of color stimuli

注記 1: The color stimulus function is generated by the spectral distribution of the amount of radiation, such as radiosity or radiant flux.

注記 2: For object color, the color stimulus function φλ (私) is equal to the product of the relative spectral distribution S (私) and the spectral reflectance ρ (私) or spectral radiation coefficient β (私) or spectral transmittance τ (私), depending on the application.

[ソース: CIE S 017: -, entry 17-23-003, revised – Definitions have been completely revised and entry notes have been added.

3.2 Heterochromatic color stimulus, PL

Isomer, PL

Spectral stimuli of different colors having the same tri-stimulus value in a specified colorimetric system

注記 1: The corresponding property is called “metamerism”.

[ソース: CIE S 017: -, article 17-23-008]

3.3 Monochromatic stimulus

Spectral stimulation

A stimulus consisting of monochromatic radiation

[ソース: CIE S 017: -, article 17-23-011]

3.4 isoenergy spectrum

Radiation spectrum, the spectral distribution of the amount of radiation as a function of wavelength is constant throughout the visible region

ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

注記 1: Radiation in the equal-energy spectrum is sometimes treated as a light source, in which case it is represented by the symbol E.

[ソース: CIE S 017: -, entry 17-23-023, 修正された – “(φλ (私) = constant)” omitted at end of definition.

3.5 Additive Mixture

&それ; Color stimulus > Stimuli, which combine the effects of various color stimuli on the retina in a way that cannot be perceived individually

[ソース: CIE S 017: -, article 17-23-030]

3.6 Color Matching

The effect of a color stimulus on a color identical to that of a given color stimulus

[ソース: CIE S 017: -, article 17-23-031]

ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

3.7 Trichromatic system

A system that specifies a color stimulus according to a tristimulus value, based on matching colors by adding a mixture of three suitably selected reference color stimuli

[ソース: CIE S 017: -, article 17-23-036]

3.8 Reference Color stimulus, PL

The three-color stimulus on which the three-color system is based

注記 1: These stimuli are either real color stimuli or theoretical stimuli defined by linear combinations of real color stimuli.

注記 2: In the CIE standard colorimetric system, the reference color stimulus is represented by symbols [R], [G], [B]; [バツ], [Y], [Z]; [R 10], [G 10], [B 10] または [バツ 10], [Y 10], [Z 10].

[ソース: CIE S 017: -, entry 17-23-037, 修正された – “three-piece set” has been changed to “three”, そして “そして” in note 2 has been changed to “または”.

ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

3.9 tristimulus value, PL

&それ; Color stimulus > 特定の 3 色システムで, the amount of reference color stimulus is needed to match the color of the stimulus under consideration

注記 1: In the CIE standard colorimetric system, the tristimulus values are represented by symbols R, G, B; バツ, Y, Z; R 10, G 10, B 10 または× 10, Y 10, Z 10.

[ソース: CIE S 017: -, entry 17-23-038, amended – “The amount of three references” has been changed to “the amount of reference”.

3.10 Color matching function, PL

&それ; Three color System > The tristimulus value of a monochromatic stimulus of equal radiative flux

[ソース: CIE S 017: -, entry 17-23-039, amended – Entry notes omitted.

3.11CIE 1931 standard colorimetric system

バツ, Y, Z

Use a set of reference color stimuli [バツ], [Y], [Z] and three CIE color matching functions adopted by CIE in 1931

mml_m1

ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

A system that determines the tristimulus values of any spectral power distribution

注記 1: Same as V (私), so the tristimulus value Y is proportional to the brightness value.

mml_m2

注記 2: The CIE 1931 standard colorimetric system is suitable for central observation fields with angular subtension between about 1° and about 4° (0,017 rad and 0,07 rad).

注記 3: The CIE 1931 standard colorimetric system can be derived from the CIE 1931 RGB colorimetric system using a transformation based on a set of three linear equations. The CIE 1931 RGB system is based on three real monochromatic reference stimuli.

注記 4: See also CIE 15, 測色.

[ソース: CIE S 017: -, article 17-23-045]

3.12 CIE 1964 standard colorimetric system

バツ 10, Y 10, Z 10

Use a set of reference color stimuli [バツ 10], [Y 10], [Z10] and the three CIE color matching functions adopted by CIE in 1964

mml_m3

A system to determine the tristimulus value of any spectral power distribution

注記 1: The CIE 1964 standard colorimetric system is suitable for central observation fields with angular subtension greater than about 4° (0,07 rad).

注記 2: When using the CIE 1964 standard colorimetric system, all symbols representing colorimetric measurements are distinguished by the use of the subindex 10.

ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

注記 3 See also CIE 15, 測色.

[ソース: CIE S 017: -, 記事 17-23-046]

3.13 CIE color matching function, PL

The CIE 1931 standard colorimetric system or

mml_m5

Functions in the CIE 1964 standard colorimetric system

mml_m4

[ソース: CIE S 017: -, article 17-23-047]

3.14 CIE 1931 standard colorimetric viewer

For the professional observer, its color matching characteristics correspond to the CIE color matching function adopted by CIE in 1931

mml_m6

[ソース: CIE S 017: -, 記事 17-23-049]

3.15 CIE 1964 standard colorimetric Observer

For the professional observer, the color matching characteristics correspond to the CIE color matching function adopted by CIE in 1964

mml_m7

[ソース: CIE S 017: -, article 17-23-050, 修正された – Article note 1 省略.

3.16 Chrominance coordinates, pl

Coordinates representing the quotient and sum of each value in a set of three tristimulus values

ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

注記 1: Since the sum of the three chromaticity coordinates equals 1, two of them are sufficient to define chromaticity.

注記 2: In the CIE standard colorimetric system, chrominance coordinates are represented by the symbols x, y, z or x 10, y 10, z 10.

注記 3: Chromaticity coordinates are quantities in unit one.

[ソース: CIE S 017: -, entry 17-23-053, amended – “ratio” has been changed to “quotient”.

3.17 Spectral chromaticity coordinates, PL

r (私), g (私), b (私); バツ (私), y (私), z (私); R 10 (私), g 10 (私), b 10 (私); バツ 10 (私), y 10 (私), z 10 (私)

Chromaticity coordinates of monochromatic stimuli

[ソース: CIE S 017: -, article 17-23-055]

3.18 Spectral luminous efficiency

ISO 11664-1-2019 比色法 – 一部 1: CIE標準測色オブザーバー

V (私) For bright vision > V ‘(私), &それ; For dark vision > Vmes; メートル (私) For medium vision >; V10 (私), &それ; For CIE 10° brightness observer >; VM (私), &それ; Improved luminous 2° spectral luminescence efficiency function for CIE 1988 >

&それ; For specified luminosity conditions > The quotient of the radiant flux at wavelength λm and the radiant flux at wavelength λ such that both produce an equally strong luminous sensation under the specified luminosity condition, and λm is chosen so that the maximum value of this quotient is equal to 1

[ソース: CIE S 017: -, entry 17-21-035, amended – Entry notes omitted.

3.19 Reflection diffuser

An ideal isotropic diffuser whose reflectivity is equal to the unit

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