IEC TR 62778:2014

IEC TR 62778
®

Edition 2.0 2014-06
TECHNICAL
REPORT

colour
inside


Application of IEC 62471 for the assessment of blue light hazard to light sources
and luminaires

IEC TR 62778:2014-05(en)

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IEC TR 62778

®


Edition 2.0 2014-06




TECHNICAL



REPORT








colour

inside










Application of IEC 62471 for the assessment of blue light hazard to light sources

and luminaires



























INTERNATIONAL

ELECTROTECHNICAL

COMMISSION

PRICE CODE
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ICS 29.140 ISBN 978-2-8322-1615-6



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® Registered trademark of the International Electrotechnical Commission

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– 2 – IEC TR 62778:2014 © IEC 2014
CONTENTS

FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 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 t values below
max
100 s . 15
6 LED packages, LED modules, lamps and luminaires .
...