SIST EN 62471:2008

SLOVENSKI STANDARD
SIST EN 62471:2008
01-december-2008
Fotobiološka varnost sijalk in sistemov s sijalkami (IEC 62471:2006, spremenjen)
Photobiological safety of lamps and lamp systems (IEC 62471:2006, modified)
Photobiologische Sicherheit von Lampen und Lampensystemen (IEC 62471:2006,
modifiziert)
Sécurité photobiologique des lampes et des appareils utilisant des lampes (CEI
62471:2006, modifiée)
Ta slovenski standard je istoveten z: EN 62471:2008
ICS:
29.140.01 Žarnice na splošno Lamps in general
SIST EN 62471:2008 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62471:2008

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SIST EN 62471:2008

EUROPEAN STANDARD
EN 62471

NORME EUROPÉENNE
September 2008
EUROPÄISCHE NORM

ICS 29.140 Partially supersedes EN 60825-1:1994 + A1:2002 + A2:2001


English version


Photobiological safety of lamps and lamp systems
(IEC 62471:2006, modified)


Sécurité photobiologique des lampes  Photobiologische Sicherheit
et des appareils utilisant des lampes von Lampen und Lampensystemen
(CEI 62471:2006, modifiée) (IEC 62471:2006, modifiziert)




This European Standard was approved by CENELEC on 2008-09-01. CENELEC 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 obtained on
application to the Central Secretariat or to any CENELEC 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 CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62471:2008 E

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SIST EN 62471:2008
EN 62471:2008 - 2 -
Foreword
The text of the International Standard IEC 62471:2006, prepared by IEC TC 76 "Optical radiation
safety and laser equipment", together with the common modifications prepared by the Technical
Committee CENELEC TC 76, Optical radiation safety and laser equipment, was submitted to the
formal vote and was approved by CENELEC as EN 62471 on 2008-09-01.
This European Standard partially supersedes EN 60825-1:1994 + corrigendum February 1995 +
A1:2002 + A2:2001 + A2:2001/corrigendum April 2004.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2009-09-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-09-01
Annex ZA has been added by CENELEC.
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SIST EN 62471:2008
 EN 62471:2008
- 3 -
Endorsement notice

The text of the International Standard IEC 62471:2006/CIE S 009:2002 was approved by CENELEC
as a European Standard with agreed common modifications as given below.

The International Standard IEC 62471:2006 was prepared as CIE S 009:2002 by the International
Commission on Illumination. It was submitted to the IEC National Committees for voting under the
Fast Track Procedure. It is published as a double logo IEC and CIE standard.

COMMON MODIFICATIONS

4 Exposure limits
Move the contents of the whole Clause 4 into a new informative Annex ZB. Keep the
numbering.
Replace the current Clause 4 with the following:
4 Exposure limits
The original Clause 4 of IEC 62471:2006 contains provisions governing limiting values for
the exposure of persons falling within the area of the health and safety of workers. Within
Europe those limiting values are already covered by the Artificial Optical Radiation Directive
(2006/25/EC). Thus, the limits of the directive have to be applied instead of those fixed in
IEC 62471:2006.
For information the original Clause 4 of IEC 62471:2006 was moved to the informative
Annex ZB under retention of the respective numbering.

4.1 General
Delete the first paragraph.

Table 6.1 – Emission limits for risk groups of continuous wave lamps
Add the following note to the table:
NOTE The action functions: see Table 4.1 and Table 4.2
 The applicable aperture diameters: see 4.2.1
 The limitations for the angular subtenses: see 4.2.2
 The related measurement condition 5.2.3 and the range of acceptance angles: see Table 5.5.

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SIST EN 62471:2008
EN 62471:2008 - 4 -
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

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
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year
CIE 17.4 1987 International Lighting Vocabulary - -
(ILV)
CIE 53 1982 Methods of characterizing the - -
performance of radiometers and
photometers
CIE 63 1984 The spectroradiometric - -
measurement of light sources
CIE 105 1993 Spectroradiometry of pulsed optical - -
radiation sources
ISO/IEC Guide 1995 Guide to the expression of - -
uncertainty in measurement (GUM)

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SIST EN 62471:2008
NORME CEI
INTERNATIONALE
IEC



62471
INTERNATIONAL


CIE S 009:2002
STANDARD


Première édition

First edition
2006-07


Sécurité photobiologique des lampes
et des appareils utilisant des lampes

Photobiological safety of lamps
and lamp systems

© IEC 2006 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
X
PRICE CODE
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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SIST EN 62471:2008
62471 © IEC:2006 – 3 –
CONTENTS

FOREWORD .7
INTRODUCTION.11
1. SCOPE.13
2. NORMATIVE REFERENCES .13
3. DEFINITIONS, SYMBOLS AND ABBREVIATIONS.13
4. EXPOSURE LIMITS (EL’S).25
4.1 General .25
4.2 Specific factors involved in the determination and application of retinal exposure limits.27
4.2.1 Pupil diameter.27
4.2.2 Angular subtense of source and measurement field-of-view .27
4.3 Hazard exposure limits.29
4.3.1 Actinic UV hazard exposure limit for the skin and eye.29
4.3.2 Near-UV hazard exposure limit for the eye.31
4.3.3 Retinal blue light hazard exposure limit .33
4.3.4 Retinal blue light hazard exposure limit - small source.37
4.3.5 Retinal thermal hazard exposure limit .39
4.3.6 Retinal thermal hazard exposure limit – weak visual stimulus .39
4.3.7 Infrared radiation hazard exposure limits for the eye.41
4.3.8 Thermal hazard exposure limit for the skin.41
5. MEASUREMENT OF LAMPS AND LAMP SYSTEMS.43
5.1 Measurement conditions.43
5.1.1 Lamp ageing (seasoning) .43
5.1.2 Test environment.45
5.1.3 Extraneous radiation.45
5.1.4 Lamp operation.45
5.1.5 Lamp system operation .45
5.2 Measurement procedure .45
5.2.1 Irradiance measurements.45
5.2.2 Radiance measurements.49
5.2.3 Measurement of source size .53
5.2.4 Pulse width measurement for pulsed sources.53
5.3 Analysis methods .53
5.3.1 Weighting curve interpolations .53
5.3.2 Calculations .53
5.3.3 Measurement uncertainty .53
6. LAMP CLASSIFICATION .59
6.1 Continuous wave lamps.59
6.1.1 Exempt group .59
6.1.2 Risk Group 1 (Low-Risk) .59
6.1.3 Risk Group 2 (Moderate-Risk).61
6.1.4 Risk Group 3 (High-Risk).61
6.2 Pulsed lamps.61

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SIST EN 62471:2008
62471 © IEC:2006 – 5 –
ANNEX A (informative) SUMMARY OF BIOLOGICAL EFFECTS .65
Bioeffect datasheet #1: Infrared cataract .65
Bioeffect datasheet #2: Photokeratitis.65
Bioeffect datasheet #3: Photoretinitis.67
Bioeffect datasheet #4: Retinal thermal injury.69
Bioeffect datasheet #5: Ultraviolet cataract.71
Bioeffect datasheet #6: Ultraviolet erythema.73
ANNEX B (informative) MEASUREMENT METHOD .77
B.1 Instrumentation .77
B.1.1 Double monochromator: Recommended instrument.77
B.1.2 Broadband detectors .77
B.2 Instrument limitations .77
B.2.1 Noise equivalent irradiance .77
B.2.2 Instrument spectral response .79
B.2.3 Wavelength accuracy .81
B.2.4 Stray radiant power.81
B.2.5 Input optics for spectral irradiance measurements: Recommendation .83
B.2.6 Linearity .83
B.3 Calibration sources .83
ANNEX C (informative) UNCERTAINTY ANALYSIS .85
ANNEX D (informative) GENERAL REFERENCES.89

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SIST EN 62471:2008
62471 © IEC:2006 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

PHOTOBIOLOGICAL SAFETY OF LAMPS
AND LAMP SYSTEMS


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote interna-
tional co-operation on all questions concerning standardization in the electrical and electronic fields. To this end
and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical
Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”).
Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject
dealt with may participate in this preparatory work. International, governmental and non-governmental organiza-
tions liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Or-
ganization for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all inter-
ested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinter-
pretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence be-
tween any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equip-
ment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and ex-
penses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publica-
tions.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of pat-
ent rights. IEC shall not be held responsible for identifying any or all such patent rights.

The International Standard IEC 62471 has been submitted by the International Commission on Illumi-
nation (CIE) and has been processed through IEC technical committee 76: Optical radiation safety and
laser equipment
This standard was prepared as Standard CIE S 009:2002 by the International Commission on
Illumination. It was submitted to the IEC National Committees for voting under the Fast Track
Procedure as the following documents:
FDIS Report on voting
76/340/FDIS 76/343/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

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SIST EN 62471:2008
62471 © IEC:2006 – 9 –
This publication is published as a double logo standard.
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
The International Commission on Illumination (abbreviated as CIE from its French title) is an
organization devoted to international cooperation and exchange of information among its mem-
ber countries on all matters relating to the science and art of lighting.

Foreword of the International Commission on Illumination (CIE)
Standards produced by the Commission Internationale de l’Eclairage (CIE) are a concise documenta-
tion of data defining aspects of light 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.
The CIE undertook a major review of the official recommendations on photobiological effects, their dose
relationships and measurement. Based on the guidelines given by the International Commission on
Non-Ionising Radiation Protection (ICNIRP), the CIE undertook to apply these guidelines to lamps and
lamp systems. The present standard describes present day knowledge of the subject but does not ab-
solve those carrying out experiments with humans from their responsibility for the safety and well being
of the subjects involved.
This Standard has been prepared by CIE Technical Committee 6-47, "Photobiological Lamp Safety
Standard", and was approved by the National Committees of the CIE. During the preparation of the
standard IEC TC34 co-operated with CIE TC 6-47 through the participation of a number of their mem-
bers.
NOTE CIE kindly acknowledges the consent of the Illuminating Engineering Society of North America who permit-
ted to use extensive parts of the documents ANSI/IESNA RP-27.1. "Photobiological Safety for Lamps and Lamp
Systems – General Requirements", ANSI/IESNA RP-27.2. "Photobiological Safety for Lamps and Lamp Systems –
Measurement Systems - Measurement Techniques" and ANSI/IESNA RP-27.3. "Photobiological Safety for Lamps
and Lamp Systems – Risk Group Classification and Labeling" as much of the basis for this standard. (Each publica-
th
tion may be purchased from Publications Department, IESNA, 120 Wall Street, 17 floor, New York, New York
10005-4001, by fax 212-248-5017 or through the web site: http://www.iesna.org).

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SIST EN 62471:2008
62471 © IEC:2006 – 11 –
INTRODUCTION
Lamps were developed and produced in large quantities and became commonplace in an era when
industry-wide safety standards were not the norm. The evaluation and control of optical radiation
hazards from lamps and lamp systems is a far more complicated subject than similar tasks for a
single-wavelength laser system. The required radiometric measurements are quite involved, for they
do not deal with the simple optics of a point source, but rather with an extended source that may or
may not be altered by diffusers or projection optics. Also the wavelength distribution of the lamp may
be altered by ancillary optical elements, diffusers, lenses, and the like, as well as variations in
operating conditions.
To evaluate a broad-band optical source, such as an arc lamp, an incandescent lamp, a fluorescent
lamp, an array of lamps or a lamp system, it is first necessary to determine the spectral distribution of
optical radiation emitted from the source at the point or points of nearest human access. This
accessible emission spectral distribution of interest for a lighting system may differ from that actually
being emitted by the lamp alone due to the filtration by any optical elements (e.g., projection optics) in
the light path. Secondly, the size, or projected size, of the source must be characterized in the retinal
hazard spectral region. Thirdly, it may be necessary to determine the variation of irradiance and
effective radiance with distance. The performance of the necessary measurements is normally not an
easy task without sophisticated instruments. Thus it was decided to include reference measurement
techniques for lamps and lamp systems in this standard. The measurement techniques along with the
described risk group classification scheme will provide common ground for both lamp manufacturers
and users to define the specific photobiological hazards of any given lamp and/or lamp system.
Finally, there are well known optical radiation hazards associated with some lamps and lamp systems.
The purpose of this standard is to provide a standardized technique for evaluation of potential radiation
hazards that may be associated with various lamps and lamp systems.

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SIST EN 62471:2008
62471 © IEC:2006 – 13 –
PHOTOBIOLOGICAL SAFETY OF LAMPS
AND LAMP SYSTEMS



1. SCOPE
This International Standard gives guidance for evaluating the photobiological safety of lamps and lamp
systems including luminaires. Specifically it specifies the exposure limits, reference measurement
technique and classification scheme for the evaluation and control of photobiological hazards from all
electrically powered incoherent broadband sources of optical radiation, including LEDs but excluding
lasers, in the wavelength range from 200 nm through 3000 nm.
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
document (including any amendments) applies.
CIE 17.4-1987 International lighting vocabulary (ILV) – Joint publication IEC/CIE
CIE 53-1982 Methods of characterizing the performance of radiometers and photometers
CIE 63-1984 The spectroradiometric measurement of light sources
CIE 105-1993 Spectroradiometry of pulsed optical radiation sources
ISO Guide to the expression of uncertainty in measurement, ISO, Geneva, 1995.
3. DEFINITIONS, SYMBOLS AND ABBREVIATIONS
For the purposes of this standard, the following definitions, symbols and abbreviations apply.
3.1 actinic dose (see ILV 845-06-23)
Quantity obtained by weighting spectrally the dose according to the actinic action spectrum value at the
corresponding wavelength.
-2
Unit: J⋅m
Note: This definition implies that an action spectrum is adopted for the actinic effect considered, and
that its maximum value is generally normalized to 1. When giving a quantitative amount, it is
essential to specify which quantity dose or actinic dose is meant, as the unit is the same.
3.2 angular subtense (α)
Visual angle subtended by the apparent source at the eye of an observer or at the point of
measurement. In this standard subtended angles are denoted by the full included angle, not the half
angle.
Unit: radian
Note: The angular subtense α will generally be modified by incorporation of lenses and mirrors as
projector optics, i.e. the angular subtense of the apparent source will differ from the angular
subtense of the physical source.
3.3 aperture, aperture stop
Opening that defines the area over which average optical emission is measured. For spectral
irradiance measurements this opening is usually the entrance of a small sphere placed in front of the
radiometer/spectroradiometer entrance slit.

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SIST EN 62471:2008
62471 © IEC:2006 – 15 –
3.4 blue light hazard (BLH)
Potential for a photochemically induced retinal injury resulting from radiation exposure at wavelengths
primarily between 400 nm and 500 nm. This damage mechanism dominates over the thermal damage
mechanism for times exceeding 10 seconds.
3.5 continuous wave (CW) lamp
Lamp that is operated with a continuous output for a time greater than 0,25 s, i.e., a non-pulsed lamp.
Note: In this standard, General lighting service (GLS) lamps are defined to be Continuous wave
lamps.
3.6 erythema (see ILV 845-06-15)
Reddening of the skin; as used in this standard the reddening of the skin resulting from inflammatory
effects from solar radiation or artificial optical radiation.
Note: The degree of delayed erythema is used as a guide to dosages applied in ultraviolet therapy.
3.7 exposure distance
Nearest point of human exposure consistent with the application of the lamp or lamp system. For
lamps radiating in all directions the distance is measured from the centre of the filament or arc source.
For reflector-type lamps the distance is measured from the outside edge of the lens or the plane
defining the end of the reflector in a lens free reflector.
Unit: m
3.8 exposure limit (EL)
Level of exposure to the eye or skin that is not expected to result in adverse biological effects.
3.9 eye movements
The normal eye, when focused on an object, moves slightly in a random motion with a frequency of a
few hertz. This rapid eye movement causes the image from a point source to be spread over an area
of the retina equivalent to an angular subtense of about 0,011 radians. Furthermore, for times greater
than about 100 seconds the focused stare capability breaks down causing further spreading of the
radiant power over the retina due to task determined eye movements, e.g. as in reading.
3.10 field of view
Solid angle as "seen" by the detector (acceptance angle), such as the radiometer/ spectroradiometer,
out of which the detector receives radiation.
Unit: sr
Note 1: The field of view should not be confused with the angular subtense of the apparent source α.
Note 2: A plane angle is sometimes used to describe a circular symmetric solid angle field of view.
3.11 general lighting service (GLS) lamps
Term for lamps intended for lighting spaces that are typically occupied or viewed by people. Examples
would be lamps for lighting offices, schools, homes, factories, roadways, or automobiles. It does not
include lamps for such uses as film projection, reprographic processes, "suntanning", industrial
proc
...