EN ISO 11145:2016

SLOVENSKI STANDARD
01-junij-2016
1DGRPHãþD
SIST EN ISO 11145:2008
Optika in fotonska tehnologija - Laserji in z laserji povezana oprema - Slovar in
simboli (ISO 11145:2016)
Optics and photonics - Lasers and laser-related equipment - Vocabulary and symbols
(ISO 11145:2016)
Optik und Photonik - Laser und Laseranlagen - Begriffe und Formelzeichen (ISO
11145:2016)
Optique et photonique - Lasers et équipements associés aux lasers - Vocabulaire et
symboles (ISO 11145:2016)
Ta slovenski standard je istoveten z: EN ISO 11145:2016
ICS:
01.040.31 Elektronika (Slovarji) Electronics (Vocabularies)
01.080.40 *UDILþQLVLPEROL]DXSRUDERY Graphical symbols for use on
ULVEDKGLDJUDPLKQDþUWLKY electrical and electronics
HOHNWURWHKQLNLLQHOHNWURQLNL engineering drawings,
WHUYXVWUH]QLWHKQLþQL diagrams, charts and in
SURL]YRGQLGRNXPHQWDFLML relevant technical product
documentation
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 11145
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2016
EUROPÄISCHE NORM
ICS 01.080.40; 01.040.31; 31.260 Supersedes EN ISO 11145:2008
English Version
Optics and photonics - Lasers and laser-related equipment
- Vocabulary and symbols (ISO 11145:2016)
Optique et photonique - Lasers et équipements Optik und Photonik - Laser und Laseranlagen - Begriffe
associés aux lasers - Vocabulaire et symboles (ISO und Formelzeichen (ISO 11145:2016)
11145:2016)
This European Standard was approved by CEN on 19 September 2015.

CEN 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 CEN-CENELEC Management Centre or to any CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11145:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC on machinery . 4

European foreword
This document (EN ISO 11145:2016) has been prepared by Technical Committee ISO/TC 172 "Optics
and photonics" in collaboration with Technical Committee CEN/TC 123 “Lasers and photonics” the
secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2016, and conflicting national standards
shall be withdrawn at the latest by September 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 11145:2008.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 11145:2016 has been approved by CEN as EN ISO 11145:2016 without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC on machinery
This European Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association to provide a means of conforming to Essential
Requirements of the New Approach Directive 2006/42/EC on machinery.
Once this standard is cited in the Official Journal of the European Union under that Directive and has
been implemented as a national standard in at least one Member State, compliance with the clauses of
this standard given in Table ZA.1 confers, within the limits of the scope of this standard, a presumption
of conformity with the corresponding Essential Requirements of that Directive and associated EFTA
regulations.
Table ZA.1 — Correspondence between this European Standard and EU Directive 2006/42/EC on
machinery
Clauses and subclauses Essential Requirements (ERs)
Qualifying remarks/Notes
of this European standard of EU Directive 2006/42/EC

3 1.5.10
3 1.5.12
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling
within the scope of this standard.
INTERNATIONAL ISO
STANDARD 11145
Fourth edition
2016-03-01
Optics and photonics — Lasers
and laser-related equipment —
Vocabulary and symbols
Optique et photonique — Lasers et équipements associés aux lasers
— Vocabulaire et symboles
Reference number
ISO 11145:2016(E)
©
ISO 2016
ISO 11145:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved

ISO 11145:2016(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Symbols and units of measurement . 1
3 Terms and definitions . 2
3.1 Beam axis . 3
3.2 Beam cross-sectional area . 3
3.3 Beam diameter . 3
3.4 Beam radius . 4
3.5 Beam widths. 5
3.11 Beam waist diameters . 7
3.12 Beam waist radius . 7
3.13 Beam waist widths . . 7
3.14 Beam waist separation . 8
3.19 Divergence angles . 9
Annex A (informative) Explanation of the difference in terminology between IEC 60825-1
and ISO 11145 .15
Annex B (informative) List of symbols .16
Annex C (informative) Alphabetical index .17
Bibliography .19
ISO 11145:2016(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 172, Optics and photonics, Subcommittee SC 9,
Electro-optical systems.
This fourth edition cancels and replaces the third edition (ISO 11145:2006) which has been technically
revised with the following changes:
a) in 3.5.3, a formula for beam ellipticity has been added;
b) in 3.53, the definition of relative intensity noise has been revised and a formula was added.
iv © ISO 2016 – All rights reserved

INTERNATIONAL STANDARD ISO 11145:2016(E)
Optics and photonics — Lasers and laser-related
equipment — Vocabulary and symbols
1 Scope
This International Standard defines basic terms, symbols, and units of measurement for the field of
laser technology in order to unify the terminology and to arrive at clear definitions and reproducible
tests of beam parameters and laser-oriented product properties.
NOTE The laser hierarchical vocabulary laid down in this International Standard differs from that given
in IEC 60825–1.
...