IEC TS 60825-19:2024
(Main)Safety of laser products - Part 19: Moving platform laser products
Safety of laser products - Part 19: Moving platform laser products
IEC TS 60825-19:2024 specifies the velocity-dependent closest points of human access (VCPHA) for the classification of moving platform laser products when considering the movement of the platform with respect to a stationary frame of reference. This presupposes that the inherent kinetic hazard of the moving platform creates a zone in which persons would not be reasonably expected to be located. Additionally, it takes neighbouring moving platforms into account by defining stationary and moving apertures. This document is applicable to all laser products whose laser apertures are on a moving platform.
Laser products are sometimes used on moving platforms. Currently the standard IEC 60825-1:2014 considers only a stationary aperture; it does not address the situations where the emitting aperture is mounted on a platform, such as a vehicle, that can be in motion. Failure to consider the effects of the motion of the platform can result in overly restrictive assessment of the hazard.
Although accounting for a platform’s movement during the assessment of a laser product’s classification can lead to less restrictive measurement conditions, it is important not to overlook that there can be apertures, even on other moving platforms, moving at a relative speed of zero or close to zero with respect to the moving platform laser product being classified.
General Information
Standards Content (Sample)
IEC TS 60825-19 ®
Edition 1.0 2024-03
TECHNICAL
SPECIFICATION
Safety of laser products –
Part 19: Moving platform laser products
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IEC TS 60825-19 ®
Edition 1.0 2024-03
TECHNICAL
SPECIFICATION
Safety of laser products –
Part 19: Moving platform laser products
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.260 ISBN 978-2-8322-8346-2
– 2 – IEC TS 60825-19:2024 © IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, symbols and abbreviated terms . 6
4 Classification principles . 8
5 Determination of the accessible emission level and product classification . 8
5.1 General . 8
5.2 Evaluation of moving platform laser products . 8
6 Engineering specifications . 10
7 Labelling and user information . 10
Annex A (informative) Flowcharts and examples for the classification of moving
platform laser products . 11
Bibliography . 15
Figure 1 – Example in side view and top view of a swept volume, filled in blue, where
human access can be excluded (VCPHA is represented by dashed red line) for a
moving platform laser product moving at velocity . 9
v
Figure A.1 – Schematic flow chart of the classification of moving platform laser
products. 11
Figure A.2 – Calculation of the VCPHA for a moving platform laser product according
over the time period t . 12
to 5.2 for a specific averaged velocity v
move
Figure A.3 – Example of a moving platform laser product emitting in direction of
movement with a reference point at the emitting chip or the vertex of the fan angle
according to IEC 60825-1:2014, Table 11 and emitting visible or near infrared radiation
resulting in a minimum measurement distance of 100 mm according to IEC 60825-
1:2014, Table 10 . 13
Figure A.4 – Example of a moving platform laser product emitting perpendicular to the
direction of movement with a reference point at the emitting chip or the vertex of the
fan angle according to IEC 60825-1:2014, Table 11 and emitting visible or near-
infrared radiation resulting in a minimum measurement distance of 100 mm according
to IEC 60825-1:2014, Table 10 . 13
Figure A.5 – Position of the stationary and the moving aperture over time when
evaluating neighbouring platforms . 14
Figure A.6 – Example of a moving platform laser product . 14
Table 1 – Values for the parameters t and δ . 8
move max
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF LASER PRODUCTS –
Part 19: Moving platform laser products
FOREWORD
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IEC TS 60825-19 has been prepared by IEC technical committee 76: Optical radiation safety
and laser equipment. It is a Technical Specification.
The text of this Technical Specification is based on the following documents:
Draft Report on voting
76/746/DTS 76/749/RVDTS
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Specification is English.
– 4 – IEC TS 60825-19:2024 © IEC 2024
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INTRODUCTION
Laser products are sometimes used on moving platforms. Currently the standard
IEC 60825-1:2014 considers only a stationary aperture; it does not address the situations where
the emitting aperture is mounted on a platform, such as a vehicle, that can be in motion. Failure
to consider the effects of the motion of the platform can result in overly restrictive assessment
of the hazard.
Although accounting for a platform’s movement during the assessment of a laser product’s
classification can lead to less restrictive measurement conditions, it is important not to overlook
that there can be apertures, even on other moving platforms, moving at a relative speed of zero
or close to zero with respect to the moving platform laser product being classified.
– 6 – IEC TS 60825-19:2024 © IEC 2024
SAFETY OF LASER PRODUCTS –
Part 19: Moving platform laser products
1 Scope
This part of IEC 60825 specifies the velocity-dependent closest points of human access
(VCPHA) for the classification of moving platform laser products when considering the
movement of the platform with respect to a stationary frame of reference. This presupposes
that the inherent kinetic hazard of the moving platform creates a zone in which persons would
not be reasonably expected to be located. Additionally, it takes neighbouring moving platforms
into account by defining stationary and moving apertures.
This document is applicable to all laser products whose laser apertures are on a moving
platform.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
IEC 60825-1:2014, Safety of laser products – Part 1: Equipment classification and requirements
3 Terms, definitions, symbols and abbreviated terms
For the purposes of this document, the terms and definitions given in IEC 60825-1:2014 and
the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
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