1、BS EN ISO11664-1:2011ICS 17.180.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDColorimetryPart 1: CIE standard colorimetricobserversNational forewordThis British Standard is the UK implementation of EN ISO 11664-1:2011. It is identical to ISO 11664-1:2007. It
2、 supersedes BS ISO 11664-1:2007 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/14, Colour measurement and schedules.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport
3、 to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN ISO 11664-1:2011This British Standardwas published under theauthority of the StandardsPolicy and StrategyCo
4、mmittee on 30 June2009. BSI 2011Amendments/corrigenda issued since publicationDate Comments 31 July 2011 This corrigendum renumbers BS ISO 11664-1:2007 as BS EN ISO 11664-1:2011ISBN 978 0 580 72260 8EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11664-1 April 2011 ICS 17.180.20 English Ver
5、sion Colorimetry - Part 1: CIE standard colorimetric observers (ISO 11664-1:2007) Colorimtrie - Partie 1: Observateurs CIE de rfrence pour la colorimtrie (ISO 11664-1:2007) Farbmetrik - Teil 1: CIE farbmetrische Normalbeobachte (ISO 11664-1:2007) This European Standard was approved by CEN on 17 Marc
6、h 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtai
7、ned on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN
8、-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,
9、Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of e
10、xploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11664-1:2011: EForeword The text of ISO 11664-1:2007 has been prepared by Technical Committee CIE “International Commission on Illumination” of the International Organization for Standardization (IS
11、O) and has been taken over as EN ISO 11664-1:2011 by Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by
12、October 2011, and conflicting national standards shall be withdrawn at the latest by October 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such pa
13、tent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ice
14、land, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11664-1:2007 has been approved by CEN as a EN ISO 11664-1:2011 without any modificatio
15、n. BS EN ISO 11664-1:2011EN ISO 11664-1:2011 (E)iiCIE S 014-1/E:2006 CIE 2006 All rights reserved ISO 2011 All rights reserved iiiCIE S 014-1/E:2006 Standard- ric olorimtrie - Partie 1: Observateurs de rfrence colorimtriques CIE arbmessung - Teil 1: CIE farbmetrische Normalbeobachter IE Standards ar
16、e copyrighted and shall not be reproduced in any form, entirely or partly, without e explicit agreement of the CIE. Vienna CIE S 014-1/E:2006 Kegelgasse 27, A-1030 Vienna, Austria ColorimetryPart 1: CIE Standard ColorimetObservers CFCthCIE Central Bureau, UDC: 535.6.08 Descriptor: Colorimetry, refer
17、ence data BS EN ISO 11664-1:2011EN ISO 11664-1:2011 (E)CIE S 014-1/E:2006 iv CIE 2006 All rights reserved ISO 2011 All rights reserved CIE, 2006All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechan
18、ical, including photocopying and microfilm, without permission in writing from CIE Central Bureau at the address below. CIE Central Bureau Kegelgasse 27 A-1030 Vienna Austria Tel.: +43 1 714 3187 0 Fax: +43 1 714 3187 18 e-mail: ciecbping.at Web: www.cie.co.at/ BS EN ISO 11664-1:2011EN ISO 11664-1:2
19、011 (E)CIE S 014-1/E:2006 CIE 2006 All rights reserved ISO 2011 All rights reserved vFOREWORD Standards produced by the Commission Internationale de lEclairage (CIE) are a concise documentation of data defining aspects of light and lighting, for which international harmony requires such unique defin
20、ition. CIE Standards are therefore a primary source of internationally accepted and agreed data, which can be taken, essentially unaltered, into universal standard systems. This CIE Standard replaces ISO/CIE 10527:1991 and was approved by the CIE Board of Administration and the National Committees o
21、f the CIE. This CIE Standard has been prepared by CIE Division 2 “Physical measurement of light and radiation“. This standard contains only minor changes from the previous standard, in particular the values in the tables of the colour matching functions and chromaticity coordinates of the CIE 1931 a
22、nd 1964 standard colorimetric observers are identical with the previous standard, but it has now been clarified that they apply for standard air. TABLE OF CONTENTS FOREWORD v INTRODUCTION 1 1. SCOPE 1 2. NORMATIVE REFERENCES 1 3. DEFINITIONS 1 4. SPECIFICATIONS 3 4.1 Colour-matching functions 4.2 Sp
23、ectral chromaticity coordinates 3 5. DERIVATION OF THE COLOUR-MATCHING FUNCTIONS FOR THE CIE 1931 STANDARD COLORIMETRIC OBSERVER 5.1 Experimental basis 5.2 Transformation procedures 4 5.3 Transformation properties 5.4 Comparison with earlier data 6. DERIVATION OF THE COLOUR-MATCHING FUNCTIONS FOR TH
24、E CIE 1964 STANDARD COLORIMETRIC OBSERVER 5 6.1 Experimental basis 6.2 Transformation procedures 6.3 Transformation properties 6.4 Comparison with earlier data 7. PRACTICAL APPLICATION OF COLOUR-MATCHING FUNCTIONS FOR CIE STANDARD COLORIMETRIC OBSERVERS 5 7.1 Obtaining tristimulus values 7.2 The bas
25、is for integration 6 7.3 Rod activity 7.4 The use of restricted data 7.5 Standard of reflectance TABLE 1. COLOUR-MATCHING FUNCTIONS A ND CHROMATICITY COORDINATES OF CIE 1931 STANDARD COLORIMETRIC OBSERVER 7 TABLE 2. COLOUR-MATCHING FUNCTIONS A ND CHROMATICITY COORDINATES OF CIE 1964 STANDARD COLORIM
26、ETRIC OBSERVER 18 ANNEX: BIBLIOGRAPHY (INFORMATIVE) 29 CIE, 2006 BS EN ISO 11664-1:2011EN ISO 11664-1:2011 (E)COLORIMETRY - PART 1: CIE STANDARD COLORIMETRIC OBSERVERS INTRODUCTION Colours with different spectral compositions can look alike. An important function of colorimetry is to determine wheth
27、er a pair of such metameric colours will look alike. The use of visual colorimeters for this purpose is handicapped by variations in the colour matches made amongst observers classified as having normal colour vision. Visual colorimetry also tends to be time-consuming. For these reasons, it has long
28、 been the practice in colorimetry to make use of sets of colour-matching functions to calculate tristimulus values for colours: equality of tristimulus values for a pair of colours indicates that the colour appearances of the two colours match, when they are viewed in the same conditions by an obser
29、ver for whom the colour-matching functions apply. The use of standard sets of colour-matching functions makes the comparison of tristimulus values obtained at different times and locations possible. 1. SCOPE This International Standard specifies colour-matching functions for use in colorimetry. Two
30、sets of colour-matching functions are specified. a) Colour-matching functions for the CIE 1931 standard colorimetric observer This set of colour-matching functions is representative of the colour-matching properties of observers with normal colour vision for visual field sizes of angular subtense fr
31、om about 1 to about 4, for vision at photopic levels of adaptation. b) Colour-matching functions for the CIE 1964 standard colorimetric observer This set of colour-matching functions is representative of the colour-matching properties of observers with normal colour vision for visual field sizes of
32、angular subtense greater than about 4, for vision at sufficiently high photopic levels and with spectral power distributions such that no participation of the rod receptors of the retina is to be expected. 2. NORMATIVE REFERENCES The following referenced documents are indispensable for the applicati
33、on of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. CIE 15:2004. Colorimetry, 3rdedition. CIE 17.4-1987. International lighting vocabulary (ILV) - Joint publication IEC/CI
34、E. 3. DEFINITIONS For the purposes of this International Standard, the following definitions apply. These definitions are taken from CIE 17.4-1987, where other relevant terms will also be found. 3.1 colour stimulus function, () (see ILV 845-03-03) description of a colour stimulus by the spectral con
35、centration of a radiometric quantity (such as radiance or radiant power) as a function of wavelength 3.2 relative colour stimulus function, () (see ILV 845-03-04) relative spectral power distribution of the colour stimulus function CIE S 014-1/E:2006 CIE 2006 All rights reserved ISO 2011 All rights
36、reserved 1BS EN ISO 11664-1:2011EN ISO 11664-1:2011 (E)3.3 metameric colour stimuli; metamers (see ILV 845-03-05) spectrally different colour stimuli that have the same tristimulus values 3.4 monochromatic stimulus: spectral stimulus (see ILV 845-03-08) stimulus consisting of a monochromatic radiati
37、on 3.5 equi-energy spectrum (see ILV 845-03-14) spectrum of a radiation whose spectral concentration of a radiometric quantity as a function of wavelength is constant throughout the visible region 3.6 additive mixture of colour stimuli (see ILV 845-03-15) method of stimulation that combines on the r
38、etina the actions of various stimuli in such a manner that they cannot be perceived individually 3.7 colour matching (see ILV 845-03-16) action of making a colour stimulus appear the same in colour as a given colour stimulus 3.8 trichromatic system (see ILV 845-03-20) system for specifying colour st
39、imuli in terms of tristimulus values based on matching colours by additive mixture of three suitably chosen reference colour stimuli 3.9 reference colour stimuli, R, G, B; X, Y, Z; X10, Y10, Z10; etc. (see ILV 845-03-21) set of three colour stimuli on which a trichromatic system is based 3.10 tristi
40、mulus values, R, G, B; X, Y, Z; X10, Y10, Z10; etc. (see ILV 845-03-22) amounts of three reference colour stimuli, in a given trichromatic system, required to match the colour of the stimulus considered 3.11 colour-matching functions, ( ) ( ) ( ) bg , ; r ( ) ( ) ( ) zyx , ; ( ) () ()10z ; etc. tris
41、timulus values of monochromatic stimuli of equal radiant power of reference r-matching functions 1010, yx(see ILV 845-03-23) 3.12 CIE 1931 standard colorimetric system (X, Y, Z) (see ILV 845-03-28) system for determining the tristimulus values of any spectral power distribution using the set colour
42、stimuli X, Y, Z, and the three CIE colou() () () zyx , adopted by the CIE in 1931 and defined in this standard hree CIE colour-matching functions 3.13 CIE 1964 standard colorimetric system (X10, Y10, Z10) (see ILV 845-03-29) system for determining the tristimulus values of any spectral power distrib
43、ution using the set of reference colour stimuli X10, Y10, Z10, and the t() () ()101010, zyx adopted by the CIE in 1964 and defined in this standard 3.14 CIE colour-matching functions (see ILV 845-03-30) functions () () () zyx , in the CIE 1931 standard colorimetric system and () () ()101010, zyx in
44、the CIE 1964 standard colorimetric system 3.15 CIE 1931 standard colorimetric observer (see ILV 845-03-31) ideal observer whose colour-matching properties correspond to the CIE colour-matching () () () zyx , functions 3.16 CIE 1964 standard colorimetric observer (see ILV 845-03-32) ideal observer wh
45、ose colour-matching properties correspond to the CIE colour-matching functions () ( ) ()101010, zyx CIE S 014-1/E:20062 CIE 2006 All rights reserved ISO 2011 All rights reservedBS EN ISO 11664-1:2011EN ISO 11664-1:2011 (E)3.17 chromaticity coordinates, r, g, b; x, y, z; x10, y10, z10; etc. (see ILV
46、845-03-33) ratio of each of a set of three tristimulus values to their sum ticity coordinates, r(), g(), b(); x(), y(), z(); x10(), y10(), z10(); etc. photometric conditions and mis chosen so eal isotropic diffuser with a reflectance equal to unity s 3.18 spectral chroma(see ILV 845-03-36) chromatic
47、ity coordinates of monochromatic stimuli 3.19 spectral luminous efficiency, V() (see ILV 845-01-22) ratio of the radiant flux at wavelength mto that at wavelength , such that both radiations produce an equal visual response under specifiedthat the maximum value of this ratio is equal to 1 3.20 perfe
48、ct reflecting diffuser (see ILV 845-04-54) id4. SPECIFICATIONS 4.1 Colour-matching functionThe colour-matching functions () ( ) ( ) zyx , of the CIE 1931 standard colorimetric observer are defined by the values given in Table 1, and those ( ) ( ) ( )101010, zyx of the CIE 1964 standard colorimetric
49、observer are defined by the values given in Table 2. The values are given at 1 nm wavelength intervals from 360 nm to 830 nm. If values are required at closer 10 10 10ese have been derived from the appropriate colour-matching functions by forming the ratios: wavelength intervals than 1 nm, they should be derived by linear interpolation. 4.2 Spectral chromaticity coordinates Tables 1 and 2 also give values for the spectral chromaticity co
