IEC 62471-5:2015
(Main)Photobiological safety of lamps and lamp systems - Part 5: Image projectors
Photobiological safety of lamps and lamp systems - Part 5: Image projectors
IEC 62471-5:2015 provides a risk group classification system for image projectors, and measurement conditions for optical radiation emitted by image projectors. It includes manufacturing requirements that may be required as a result of an image projector system being assigned to a particular risk group. Therefore, this part of IEC 62471 provides safety requirements for lamp systems that are intended to produce projected visible optical radiation, such as theatre projectors, data projectors and home-use projectors. The assigned risk group of a projector product also may be used by projector manufacturers to assist with any risk assessments, e.g. for occupational exposure in workplaces. National requirements may exist for the assessment of products or occupational exposure.
Sécurité photobiologique des lampes et des appareils utilisant des lampes - Partie 5: Projecteurs d’images
IEC 62471-5:2015 fournit des exigences concernant la sécurité photobiologique du rayonnement optique émis par les projecteurs d'images. Elle inclut les exigences de fabrication qui peuvent être exigées par suite de l'affectation d'un groupe de risques particulier à un appareil utilisant un projecteur d'images. Par conséquent, la présente partie de l’IEC 62471 fournit des exigences de sécurité pour les appareils utilisant des lampes qui sont destinés à générer des rayonnements optiques visibles projetés, tels que les projecteurs cinématographiques, les projecteurs d'image-écran et les projecteurs à usage domestique. Le groupe de risques affecté d'un projecteur peut également être utilisé par les fabricants de projecteurs pour faciliter les appréciations du risque, par exemple dans le cas de l'exposition professionnelle sur les lieux de travail. Il peut exister des exigences nationales pour l'évaluation des appareils ou de l'exposition professionnelle.
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IEC 62471-5 ®
Edition 1.0 2015-06
INTERNATIONAL
STANDARD
colour
inside
Photobiological safety of lamps and lamp systems –
Part 5: Image projectors
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.
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IEC 62471-5 ®
Edition 1.0 2015-06
INTERNATIONAL
STANDARD
colour
inside
Photobiological safety of lamps and lamp systems –
Part 5: Image projectors
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.140 ISBN 978-2-8322-2737-4
– 2 – IEC 62471-5:2015 © IEC 2015
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references. 8
3 Terms and definitions . 9
4 General . 15
4.1 Basis for risk groups . 15
4.2 Example applications . 16
4.2.1 RG0 / RG1 projectors . 16
4.2.2 RG2 projectors . 16
4.2.3 RG3 projectors . 16
4.3 Projector lamps . 16
4.4 Assessment criteria (background) . 16
5 Risk group determination . 17
5.1 Test conditions . 17
5.2 Measurement conditions for image projectors . 18
5.2.1 Measurement throw ratio . 18
5.2.2 Measurement distance . 18
5.3 The position and size of apparent source, the calculation of angular
subtense . 18
5.4 Measurement of irradiance – specified apertures . 19
5.5 Measurement of radiance . 19
5.6 Accessible emission limits . 20
5.6.1 For CW emission. 20
5.6.2 For pulsed emission . 21
5.6.3 Spectral weighting functions . 22
5.7 Applying information from the lamp manufacturers . 23
5.7.1 General . 23
5.7.2 Limits provided in irradiance/radiant exposure . 24
5.7.3 Limits provided in radiance or radiance dose . 24
6 Manufacturer’s requirements . 24
6.1 General . 24
6.2 Determination of HD (hazard distance) . 25
6.3 Safety feature "soft start" . 25
6.4 Optional safety features . 25
6.4.1 Projection of warning message . 25
6.4.2 Power reduction by sensor system . 25
6.5 Labelling on products . 25
6.5.1 General . 25
6.5.2 RG0 projector . 26
6.5.3 RG1 projector . 26
6.5.4 RG2 projector . 27
6.5.5 RG3 projector . 28
6.6 User information . 28
6.6.1 General . 28
6.6.2 Assessment of user accessible area . 29
6.6.3 User information (user manual) . 29
6.6.4 User information for maintenance . 30
6.7 Labelling and user information for image projectors where the risk group will
be changed by interchangeable lens . 30
6.7.1 General . 30
6.7.2 Labelling on the projector . 30
6.7.3 Mark on the interchangeable lens . 32
6.7.4 The user information in the user manual of the projector . 32
6.7.5 The user information in the user manual of the interchangeable lens . 32
7 Information for service . 33
Annex A (normative) Test scheme for lamp types . 34
Annex B (informative) Example of calculations . 35
B.1 Radiance calculations . 35
B.1.1 General . 35
B.1.2 Calculation from measured irradiance . 35
B.1.3 Calculation from luminous output . 36
B.2 Calculation example of risk group (CW) . 37
B.2.1 Example of a 5 000 lm projector . 37
B.2.2 10 000 lm professional-use projector with an apparent source of small
subtense angle (CW) . 39
B.2.3 2 000 lm projector with small apparent source (CW) . 40
B.3 Calculation example of risk group (pulsed emission) . 41
B.3.1 General . 41
B.3.2 14 000 lm projector with one peak . 41
B.3.3 14 000 lm projector with two peaks . 44
Annex C (informative) Example of intra-beam of projector sources with millimetre
scale . 47
Annex D (informative) Measurement distance . 48
Annex E (informative) Hazard distance as a function of modifying optics . 50
Bibliography . 51
Figure 1 – Exit pupil in projector . 10
Figure 2 – Examples of the application of the definition of pulse duration . 13
Figure 3 – Definition of throw ratio. 15
Figure 4 – Diameter of the apparent source . 18
Figure 5 – RG1 label (optional) . 26
Figure 6 – RG2 label . 27
Figure 7 – RG2 caution symbol . 27
Figure 8 – Sample design of RG2 caution pictogram . 27
Figure 9 – RG3 label . 28
Figure 10 – Optical radiation warning symbol . 28
Figure 11 – "Not for household use" symbol . 28
Figure 12 – RG2 label with the caution for RG3 . 31
Figure 13 – RG2 caution label with the caution for RG3 . 31
Figure 14 – RG2 pictogram with the caution for RG3 . 32
Figure B.1 – Image of the apparent source and measurement condition . 37
– 4 – IEC 62471-5:2015 © IEC 2015
Figure B.2 – Picture of the apparent source of a projector at the exit pupil of the
projection lenses with a scale . 37
Figure B.3 – Example with one peak of pulsed emission . 42
Figure B.4 – Example with two peaks of pulsed emission . 44
Figure C.1 – Examples of intra-beam images of projector sources with millimetre scale . 47
Figure E.1 – Hazard distance as a function
...
IEC 62471-5 ®
Edition 1.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Photobiological safety of lamps and lamp systems –
Part 5: Image projectors
Sécurité photobiologique des lampes et des appareils utilisant des lampes –
Partie 5: Projecteurs d’images
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
either IEC or IEC's 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 contact the address below or
your local IEC member National Committee for further information.
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Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global 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 amendment might have been published.
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Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
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The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
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IEC 62471-5 ®
Edition 1.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Photobiological safety of lamps and lamp systems –
Part 5: Image projectors
Sécurité photobiologique des lampes et des appareils utilisant des lampes –
Partie 5: Projecteurs d’images
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.01; 31.260 ISBN 978-2-8322-5353-3
– 2 – IEC 62471-5:2015 © IEC 2015
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 General . 15
4.1 Basis for risk groups . 15
4.2 Example applications . 15
4.2.1 RG0 / RG1 projectors . 15
4.2.2 RG2 projectors . 15
4.2.3 RG3 projectors . 15
4.3 Projector lamps . 15
4.4 Assessment criteria (background) . 16
5 Risk group determination . 16
5.1 Test conditions . 16
5.2 Measurement conditions for image projectors . 17
5.2.1 Measurement throw ratio . 17
5.2.2 Measurement distance . 17
5.3 The position and size of apparent source, the calculation of angular
subtense . 17
5.4 Measurement of irradiance – specified apertures . 18
5.5 Measurement of radiance . 18
5.6 Accessible emission limits. 19
5.6.1 For CW emission . 19
5.6.2 For pulsed emission. 20
5.6.3 Spectral weighting functions . 21
5.7 Applying information from the lamp manufacturers . 23
5.7.1 General . 23
5.7.2 Limits provided in irradiance/radiant exposure . 23
5.7.3 Limits provided in radiance or radiance dose . 23
6 Manufacturer’s requirements . 23
6.1 General . 23
6.2 Determination of HD (hazard distance) . 24
6.3 Safety feature "soft start" . 24
6.4 Optional safety features . 24
6.4.1 Projection of warning message . 24
6.4.2 Power reduction by sensor system . 24
6.5 Labelling on products . 24
6.5.1 General . 24
6.5.2 RG0 projector . 25
6.5.3 RG1 projector . 25
6.5.4 RG2 projector . 26
6.5.5 RG3 projector . 27
6.6 User information . 27
6.6.1 General . 27
6.6.2 Assessment of user accessible area . 28
6.6.3 User information (user manual) . 28
6.6.4 User information for maintenance . 29
6.7 Labelling and user information for image projectors where the risk group will
be changed by interchangeable lens . 29
6.7.1 General . 29
6.7.2 Labelling on the projector . 30
6.7.3 Mark on the interchangeable lens . 31
6.7.4 The user information in the user manual of the projector . 31
6.7.5 The user information in the user manual of the interchangeable lens . 32
7 Information for service . 32
Annex A (normative) Test scheme for lamp types . 33
Annex B (informative) Example of calculations . 34
B.1 Radiance calculations . 34
B.1.1 General . 34
B.1.2 Calculation from measured irradiance . 34
B.1.3 Calculation from luminous output . 35
B.2 Calculation example of risk group (CW) . 36
B.2.1 Example of a 5 000 lm projector . 36
B.2.2 10 000 lm professional-use projector with an apparent source of small
subtense angle (CW) . 38
B.2.3 2 000 lm projector with small apparent source (CW) . 39
B.3 Calculation example of risk group (pulsed emission) . 40
B.3.1 General . 40
B.3.2 14 000 lm projector with one peak .
...
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