1、BRITISH STANDARDBS EN ISO11664-2:2011Colorimetry - Part 2:CIE standardilluminantsICS 17.180.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Copyri
2、ght European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-National forewordThis British Standard is the UK implementation of EN ISO 11664-2:2011. It is identical to ISO 11664-2:2007. It supersed
3、es BS ISO 10526:2007 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee CPL/34, Lamps and Related Equipment.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all
4、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 11664-2:2011This British Standard was published under the authority of the Standards Policy and Strategy Committee on 2
5、9 February 2008 BSI 2011Amendments/corrigenda issued since publicationDate Comments 30 September 2011 This corrigendum renumbers BS ISO 10526:2007 as BS EN ISO 11664-2:2011ISBN 978 0 580 72261 5Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo re
6、production or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11664-2 April 2011 ICS 17.180.20 English Version Colorimetry - Part 2: CIE standard illuminants (ISO 11664-2:2007) Colorimtrie - Partie 2: Illuminants CIE normalises (ISO 11664-2:
7、2007) Farbmetrik - Teil 2: CIE Normlichtarten (ISO 11664-2:2007)This European Standard was approved by CEN on 17 March 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 wi
8、thout any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained 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 othe
9、r language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-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,
10、Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMA
11、LISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11664-2:2011: ECopyright European Committee for Standardization Provided by IHS u
12、nder license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Foreword The text of ISO 11664-2:2007 has been prepared by Technical Committee CIE “International Commission on Illumination” of the International Organization for Standardization (ISO) and has be
13、en taken over as EN ISO 11664-2:2011 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 October 2011,
14、 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 patent rights.
15、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, Iceland, Ireland
16、, 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 11664-2:2007 has been approved by CEN as a EN ISO 11664-2:2011 without any modification. BS EN ISO
17、11664-2:2011EN ISO 11664-2:2011 (E)Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-StandardCIE S 014-2/E:2006Colorimetry - Part 2: CIE Standard Illuminants Colorimtrie - Partie 2
18、: Illuminants normaliss CIE Farbmessung - Teil 2: CIE Normlichtarten CIE Standards are copyrighted and shall not be reproduced in any form, entirely or partly, without the explicit agreement of the CIE. CIE Central Bureau, Vienna CIE S 014-2/E:2006 Kegelgasse 27, A-1030 Vienna, Austria UDC: 535.65:0
19、06 Descriptor: Standardisation of colour measurement 535.643.2 Standard colorimetric system iiiBS EN ISO 11664-2:2011EN ISO 11664-2:2011 (E)Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license fro
20、m IHS-,-,- CIE, 2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from CIE Central Bureau at the address below. CIE
21、 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/ ivBS EN ISO 11664-2:2011EN ISO 11664-2:2011 (E)Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproducti
22、on or networking permitted without license from IHS-,-,-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 definition. CIE Standards are the
23、refore a primary source of internationally accepted and agreed data, which can be taken, essentially unaltered, into universal standard systems. This CIE Standard replaces ISO 10526:1999/CIE S005:1998 and was approved by the CIE Board of Administration and the National Committees of the CIE. It cont
24、ains only minor changes from the previous standard, which was prepared by CIE Technical Committee 2-33, “Reformulation of CIE Standard Illuminants A and D65“ *). The numerical values of the relative spectral distributions of standard illuminants A and D65 defined by this Standard are the same, withi
25、n an accuracy of six significant digits, as those defined in earlier versions of these illuminants. TABLE OF CONTENTS FOREWORD v 1. SCOPE 1 2. NORMATIVE REFERENCES 2 3. DEFINITIONS 2 4. CIE STANDARD ILLUMINANT A 4 4.1 Definition 4 4.2 Theoretical basis 4 4.3 Supplementary notes. 4 5. CIE STANDARD IL
26、LUMINANT D65 5 5.1 Definition 5 5.2 Experimental basis. 5 5.3 Correlated colour temperature. 5 6. CIE SOURCES FOR PRODUCING CIE STANDARD ILLUMINANTS . 5 6.1 CIE source A 5 6.2 Source for CIE standard illuminant D65 6 TABLE 1. RELATIVE SPECTRAL POWER DISTRIBUTIONS OF CIE STANDARD ILLUMINANTS A AND D6
27、5 (wavelengths in standard air). 7 ANNEX: BIBLIOGRAPHY (INFORMATIVE) . 7 *) Chairman of this TC was K. D. Mielenz (US), members were: J. J. Hsia (US), J. R. Moore (GB), A. R. Robertson (CA), H. Terstiege (DE) =, J. F. Verrill (GB) =. This present revision was finalized by an editorial group in CIE D
28、ivision 2: J. Gardner (AU), T. Goodman (UK), K. Mielenz (US), J. Moore (UK), Y. Ohno (US), A. Robertson (CA), J. Schanda (HU). CIE, 2006 BS EN ISO 11664-2:2011EN ISO 11664-2:2011 (E)Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction o
29、r networking permitted without license from IHS-,-,-blankCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-COLORIMETRY - PART 2: CIE STANDARD ILLUMINANTS 1. SCOPE This Internationa
30、l Standard specifies two illuminants for use in colorimetry. The illuminants, which are defined in clauses 4 and 5 of this International Standard, are as follows: a) CIE standard illuminant A This is intended to represent typical, domestic, tungsten-filament lighting. Its relative spectral power dis
31、tribution is that of a Planckian radiator at a temperature of approximately 2 856 K. CIE standard illuminant A should be used in all applications of colorimetry involving the use of incandescent lighting, unless there are specific reasons for using a different illuminant. b) CIE standard illuminant
32、D65 This is intended to represent average daylight and has a correlated colour temperature of approximately 6 500 K. CIE standard illuminant D65 should be used in all colorimetric calculations requiring representative daylight, unless there are specific reasons for using a different illuminant. Vari
33、ations in the relative spectral power distribution of daylight are known to occur, particularly in the ultraviolet spectral region, as a function of season, time of day, and geographic location. However, CIE standard illuminant D65 should be used pending the availability of additional information on
34、 these variations. Values for the relative spectral power distribution of CIE standard illuminants A and D65 are given in Table 1 of this International Standard. Values are given at 1 nm intervals from 300 nm to 830 nm. The term “illuminant“ refers to a defined spectral power distribution, not neces
35、sarily realizable or provided by an artificial source. Illuminants are used in colorimetry to compute the tristimulus values of reflected or transmitted object colours under specified conditions of illumination. The CIE has also defined illuminant C and other illuminants D. These illuminants are des
36、cribed in Publication CIE 15:2004 but they do not have the status of primary CIE standards accorded to the CIE standard illuminants A and D65 described in this International Standard. It is recommended that one of the two CIE standard illuminants defined in this International Standard be used wherev
37、er possible. This will greatly facilitate the comparison of published results. It is noted that in the fields of graphic arts and photography extensive use is also made of CIE illuminant D50. In most practical applications of colorimetry, it is sufficient to use the values of CIE standard illuminant
38、s A and D65 at less frequent wavelength intervals or in a narrower spectral region than defined in this Standard. Data and guidelines that facilitate such practice are provided in Publication CIE 15:2004, together with other recommended procedures for practical colorimetry. The term “source“ refers
39、to a physical emitter of light, such as a lamp or the sky. In certain cases, the CIE recommends laboratory sources that approximate the spectral power distributions of CIE illuminants. In all cases, however, the definition of a CIE recommended source is secondary to the definition of the correspondi
40、ng CIE illuminant, because of the possibility that, from time to time, new developments will lead to improved sources that represent a particular illuminant more accurately or are more suitable for laboratory use. Subclause 6.1 of this International Standard describes CIE source A, which is recommen
41、ded for laboratory realizations of CIE standard illuminant A. At present, there is no CIE recommended source representing CIE standard illuminant D65. 1BS EN ISO 11664-2:2011EN ISO 11664-2:2011 (E)Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo
42、 reproduction or networking permitted without license from IHS-,-,-2. NORMATIVE REFERENCES The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced doc
43、ument (including any amendments) applies. CIE 15:2004. Colorimetry, 3rdedition. CIE 17.4-1987. International Lighting Vocabulary (ILV) - Joint publication IEC/CIE. ISO 23603:2005/CIE S 012/E:2004. Standard method of assessing the spectral quality of daylight simulators for visual appraisal and measu
44、rement of colour. CIE S 014-1/E:2006. Colorimetry Part 1: CIE standard colorimetric observers. 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 chromatic
45、ity coordinates (see ILV 845-03-33) ratio of each of a set of three tristimulus values to their sum NOTE 1: As the sum of the three chromaticity coordinates equals 1, two of them are sufficient to define a chromaticity. NOTE 2: In the CIE 1931 and 1964 standard colorimetric systems, the chromaticity
46、 co-ordinates are represented by the symbols x, y, z and x10, y10, z10. 3.2 chromaticity diagram (see ILV 845-03-35) plane diagram in which points specified by chromaticity co-ordinates represent the chromaticities of colour stimuli 3.3 CIE standard illuminants illuminants A and D65 defined by the C
47、IE in terms of relative spectral power distributions 13.4 CIE sources artificial sources, specified by the CIE, whose relative spectral power distributions are approximately the same as those of CIE standard illuminants 13.5 CIE 1976 uniform chromaticity scale diagram; CIE 1976 UCS diagram (see ILV
48、845-03-53) uniform chromaticity scale diagram produced by plotting in rectangular co-ordinates v against u, quantities defined by the equations u = 4X/(X + 15Y + 3Z) = 4x/(-2x + 12y + 3) v = 9Y/(X + 15Y + 3Z) = 9y/(-2x + 12y + 3) X, Y, Z are the tristimulus values in the CIE 1931 or 1964 standard co
49、lorimetric systems, and x, y are the corresponding chromaticity coordinates of the colour stimulus considered. 3.6 colour temperature Tc (see ILV 845-03-49) temperature of a Planckian radiator whose radiation has the same chromaticity as that of a given stimulus 1This definition is a revision of the definition
