1、 IEC TR 62778 Edition 2.0 2014-06 TECHNICAL REPORT Application of IEC 62471 for the assessment of blue light hazard to light sources and luminaires IEC TR 62778:2014-05(en)colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-27-2014 by James Madi
2、son.No further reproduction or distribution is permitted.Uncontrolled when printed.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2014 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electr
3、onic or mechanical,including photocopying and microfilm,without permission in writing from either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contac
4、t the address below or your local IEC member National Committee for further information.IEC Central Office Tel.:+41 22 919 02 11 3,rue de Varemb Fax:+41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission(IEC)is the leading glo
5、bal organization that prepares and publishes International Standards for all electrical,electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigenda or an a
6、mendment might have been published.IEC Catalogue-webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information on IEC International Standards,Technical Specifications,Technical Reports and other documents.Available for PC,Mac OS,Android Tablets and iPad.
7、IEC publications search-www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,replaced and withdrawn publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to
8、 date on all new IEC publications.Just Published details all new publications released.Available online and also once a month by email.Electropedia-www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in Englis
9、h and French,with equivalent terms in 14 additional languages.Also known as the International Electrotechnical Vocabulary(IEV)online.IEC Glossary-std.iec.ch/glossary More than 55 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC pub
10、lications issued since 2002.Some entries have been collected from earlier publications of IEC TC 37,77,86 and CISPR.IEC Customer Service Centre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance,please contact the Customer Service Centre:csciec.ch
11、.Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC TR 62778 Edition 2.0 2014-06 TECHNICAL REPORT Application of IEC 62471 for the assessment of blu
12、e light hazard to light sources and luminaires INTERNATIONAL ELECTROTECHNICAL COMMISSION W ICS 29.140 PRICE CODE ISBN 978-2-8322-1615-6 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinsi
13、deCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 IEC TR 62778:2014 IEC 2014 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references.6 3 Terms and def
14、initions.6 4 General.11 5 Spectrum,colour temperature,and blue light hazard.12 5.1 Calculation of blue light hazard quantities and photometric quantities from emission spectra.12 5.2 Luminance and illuminance regimes that give rise to tmax values below 100 s.15 6 LED packages,LED modules,lamps and l
15、uminaires.17 7 Measurement information flow.18 7.1 Basic flow.18 7.2 Conditions for the radiance measurement.20 7.3 Special cases(I):Replacement by a lamp or LED module of another type.22 7.4 Special cases(II):Arrays and clusters of primary light sources.22 8 Risk group classification.22 Annex A(inf
16、ormative)Geometrical relations between radiance,irradiance and radiant intensity.23 Annex B(informative)Distance dependence of tmax for a certain light source.25 Annex C(informative)Summary of recommendations to assist the consistent application of IEC 62471 for the assessment of blue light hazard to light sources and luminaires.27 C.1 General.27 C.2 Situation of RG0 or RG1 classification not requiring radiance or irradiance measurement.27 C.2.1 Boundary conditions.27 C.2.2 True luminance val
