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1、 Reference number ISO 10526:2007(E) CIE S 014-2/E:2006 ISO 2007 INTERNATIONAL STANDARD ISO 10526 CIE S 014-2/E First edition 2007-10-15 CIE standard illuminants for colorimetry Illuminants colorimtriques normaliss CIE Copyright International Organization for Standardization Provided by IHS under lic
2、ense with ISO Licensee=IHS Employees/1111111001, User=leee, leee Not for Resale, 11/22/2007 18:44:35 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 10526:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, th
3、is file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secret
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5、re that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2007 All rights reserved. Unless otherwise specified, no part of this publicatio
6、n may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20
7、Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2007 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=leee, leee Not for Res
8、ale, 11/22/2007 18:44:35 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 10526:2007(E) ISO 2007 All rights reserved iii ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of prepa
9、ring International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in l
10、iaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. ISO 10526 was prepared as Standard CIE S 014-2/E by the International Commission on Illumination, which has been recogniz
11、ed by the ISO Council as an international standardizing body. It was adopted by ISO under a special procedure which requires approval by at least 75 % of the member bodes casting a vote, and is published as a joint ISO/CIE edition. The International Commission on Illumination (abbreviated as CIE fro
12、m its French title) is an organization devoted to international cooperation and exchange of information among its member countries on all matters relating to the science and art of lighting. International Standard ISO 10526 was prepared by CIE Technical Committee 2-33 Reformulation of CIE Standard I
13、lluminants A and D65. Foreword ISO 10526 cancels and replaces ISO/CIE 10526:1999. The numerical values of the relative spectral distributions of standard illuminants A and D65 defined by this Standard are the same, within an accuracy of six significant digits, as those defined in earlier versions of
14、 these illuminants. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=leee, leee Not for Resale, 11/22/2007 18:44:35 MSTNo reproduction or networking permitted without license from IHS -,-,- Copyright International
15、 Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=leee, leee Not for Resale, 11/22/2007 18:44:35 MSTNo reproduction or networking permitted without license from IHS -,-,- Standard CIE S 014-2/E:2006 Colorimetry - Part 2: CIE Standard Ill
16、uminants Colorimtrie - Partie 2: 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-103
17、0 Vienna, Austria UDC: 535.65:006 Descriptor: Standardisation of colour measurement 535.643.2 Standard colorimetric system ISO 10526:2007(E) CIE S 014-2/E:2006 CIE 2006 All rights reserved ISO 2007 All rights reserved v Copyright International Organization for Standardization Provided by IHS under l
18、icense with ISO Licensee=IHS Employees/1111111001, User=leee, leee Not for Resale, 11/22/2007 18:44:35 MSTNo reproduction or networking permitted without license from IHS -,-,- CIE, 2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any
19、 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 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
20、.at/ ISO 10526:2007(E) CIE S 014-2/E:2006 CIE 2006 All rights reserved ISO 2007 All rights reserved vi Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=leee, leee Not for Resale, 11/22/2007 18:44:35 MSTNo reproduc
21、tion or networking permitted without license from IHS -,-,- ISO 10526:2007(E) CIE S 014-2/E:2006 CIE 2006 All rights reserved ISO 2007 All rights reserved vii FOREWORD Standards produced by the Commission Internationale de lEclairage (CIE) are a concise documentation of data defining aspects of ligh
22、t and lighting, for which international harmony requires such unique definition. 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 10526:1999/CIE S005:19
23、98 and was approved by the CIE Board of Administration and the National Committees of the CIE. It contains 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
24、 spectral distributions of standard illuminants A and D65 defined by this Standard are the same, within an accuracy of six significant digits, as those defined in earlier versions of these illuminants. TABLE OF CONTENTS FOREWORD vii 1. SCOPE 1 2. NORMATIVE REFERENCES 2 3. DEFINITIONS 2 4. CIE STANDA
25、RD ILLUMINANT A 4 4.1 Definition 4 4.2 Theoretical basis 4 4.3 Supplementary notes. 4 5. CIE STANDARD ILLUMINANT 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 standa
26、rd illuminant D65 6 TABLE 1. RELATIVE SPECTRAL POWER DISTRIBUTIONS OF CIE STANDARD ILLUMINANTS A AND D65 (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. Ter
27、stiege (DE) ?, J. F. Verrill (GB) ?. This present revision was finalized by an editorial group in CIE Division 2: J. Gardner (AU), T. Goodman (UK), K. Mielenz (US), J. Moore (UK), Y. Ohno (US), A. Robertson (CA), J. Schanda (HU). CIE, 2006 Copyright International Organization for Standardization Pro
28、vided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=leee, leee Not for Resale, 11/22/2007 18:44:35 MSTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO License
29、e=IHS Employees/1111111001, User=leee, leee Not for Resale, 11/22/2007 18:44:35 MSTNo reproduction or networking permitted without license from IHS -,-,- COLORIMETRY - PART 2: CIE STANDARD ILLUMINANTS 1. SCOPE This International Standard specifies two illuminants for use in colorimetry. The illumina
30、nts, 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 distribution is that of a Planckian radiator at a temperature of approximate
31、ly 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 D65 This is intended to represent average daylight and has a correlated c
32、olour 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. Variations in the relative spectral power distribution of daylight are known
33、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 these variations. Values for the relative spectral power distribution of
34、 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 necessarily realizable or provided by an artificial source. Illuminants are us
35、ed 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 described in Publication CIE 15:2004 but they do not have the status of prim
36、ary 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 wherever possible. This will greatly facilitate the comparison of published res
37、ults. 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 illuminants A and D65 at less frequent wavelength intervals or in a narrower spectr
38、al 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 to a physical emitter of light, such as a lamp or the sky. In certain cas
39、es, 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 corresponding CIE illuminant, because of the possibility that, from time to time, ne
40、w 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 recommended for laboratory realizations of CIE standard illuminant A. At present,
41、 there is no CIE recommended source representing CIE standard illuminant D65. ISO 10526:2007(E) CIE S 014-2/E:2006 CIE 2006 All rights reserved ISO 2007 All rights reserved 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/111111
42、1001, User=leee, leee Not for Resale, 11/22/2007 18:44:35 MSTNo 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.
43、 For undated references, the latest edition of the referenced document (including any amendments) applies. CIE 15:2004. Colorimetry, 3rd edition. 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 spec
44、tral quality of daylight simulators for visual appraisal and measurement 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-
45、1987, where other relevant terms will also be found. 3.1 chromaticity 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
46、 CIE 1931 and 1964 standard colorimetric systems, the chromaticity 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
47、3.3 CIE standard illuminants illuminants A and D65 defined by the CIE in terms of relative spectral power distributions 1 3.4 CIE sources artificial sources, specified by the CIE, whose relative spectral power distributions are approximately the same as those of CIE standard illuminants 1 3.5 CIE 19
48、76 uniform chromaticity scale diagram; CIE 1976 UCS diagram (see ILV 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 colorimetric systems, and x, y are the corresponding chromaticit