1、October 2016 English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 01.040.31; 01.075; 31.260!%“2579
2、895www.din.deDIN EN ISO 11145Optics and photonics Lasers and laserrelated equipment Vocabulary and symbols (ISO 11145:2016);English version EN ISO 11145:2016,English translation of DIN EN ISO 11145:2016-10Optik und Photonik Laser und Laseranlagen Begriffe und Formelzeichen (ISO 11145:2016);Englische
3、 Fassung EN ISO 11145:2016,Englische bersetzung von DIN EN ISO 11145:2016-10Optique et photonique Lasers et quipements associs aux lasers Vocabulaire et symboles (ISO 11145:2016);Version anglaise EN ISO 11145:2016,Traduction anglaise de DIN EN ISO 11145:2016-10SupersedesDIN EN ISO 11145:200811www.be
4、uth.deDocument comprises 26 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.10.16 DIN EN ISO 11145:2016-10 2 A comma is used as the decimal marker. National foreword This document (EN ISO 11145:2016) has been prepared by Techni
5、cal Committee ISO/TC 172 “Optics and photonics” in collaboration with Technical Committee CEN/TC 123 “Lasers and photonics” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Feinmechanik und Optik (DIN Standards Committee Optics and Precisio
6、n Mechanics), Working Committee NA 027-01-18 AA Laser. The DIN Standards corresponding to the International Standards referred to in this document are as follows: IEC 60825-1 DIN EN 60825-1 (VDE 0837-1) ISO 11146-1 DIN EN ISO 11146-1 ISO 11670 DIN EN ISO 11670 ISO 13694 DIN EN ISO 13694 ISO 15367-1
7、DIN EN ISO 15367-1 Amendments This standard differs from DIN EN ISO 11145:2008-11 as follows: a) in Subclause 3.5.3, the formula for beam ellipticity has been added; b) in Subclause 3.53, the definition of relative intensity noise has been revised and a formula has been added. Previous editions DIN
8、V 18730: 1991-01 DIN EN ISO 11145: 1995-02, 2002-03, 2006-07, 2008-11 National Annex NA (informative) Bibliography DIN EN 60825-1 (VDE 0837-1), Safety of laser products Part 1: Equipment classification and requirements DIN EN ISO 11146-1, Lasers and laser-related equipment Test methods for laser bea
9、m widths, divergence angles and beam propagation ratios Part 1: Stigmatic and simple astigmatic beams DIN EN ISO 11670, Lasers and laser-related equipment Test methods for laser beam parameters Beam positional stability DIN EN ISO 13694, Optics and photonics Lasers and laser-related equipment Test m
10、ethods for laser beam power (energy) density distribution DIN EN ISO 15367-1, Lasers and laser-related equipment Test methods for determination of the shape of a laser beam wavefront Part 1: Terminology and fundamental aspects EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11145 March 2016
11、 ICS 01.080.40; 01.040.31; 31.260 Supersedes EN ISO 11145:2008English Version Optics and photonics - Lasers and laser-related equipment -Vocabulary and symbols (ISO 11145:2016) Optique et photonique - Lasers et quipements associs aux lasers - Vocabulaire et symboles(ISO 11145:2016) Optik und Photoni
12、k - Laser und Laseranlagen - Begriffe und Formelzeichen (ISO 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 nationa
13、l 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 versio
14、n 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, Cze
15、ch 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 andUnited Kingdom. EU
16、ROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR 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 worldwide for CEN national Members. Ref. No. EN ISO 11145:2016
17、 EForeword 31 Scope . 62 Symbols and units of measurement . 63 Terms and definitions . 73.1 Beam axis . 83.2 Beam cross-sectional area 83.3 Beam diameter 83.4 Beam radius . 93.5 Beam widths. 103.11 Beam waist diameters . 123.12 Beam waist radius . 123.13 Beam waist widths 123.14 Beam waist separatio
18、n 133.19 Divergence angles 14Annex A (informative) Explanation of the difference in terminology between IEC 60825-1 and ISO 11145 20Annex B (informative) List of symbols .21Annex C (informative) Alphabetical index .22Bibliography .24Contents PageEuropean foreword 4 Annex ZA (informative) Relationshi
19、p between this European Standard and the Essential Requirements of EU Directive 2006/42/EC on machinery 5 .2DIN EN ISO 11145:2016-10 EN ISO 11145:2016 (E) European foreword This document (EN ISO 11145:2016) has been prepared by Technical Committee ISO/TC 172 “Optics and photonics“ in collaboration w
20、ith 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 standard
21、s 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
22、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 documen
23、t. 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,
24、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 111
25、45:2016 without any modification. 3DIN EN ISO 11145:2016-10 EN ISO 11145:2016 (E) 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 Eur
26、opean 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 nati
27、onal 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
28、.1 Correspondence between this European Standard and EU Directive 2006/42/EC on machinery Clauses and subclauses of this European standard Essential Requirements (ERs) of EU Directive 2006/42/EC Qualifying remarks/Notes 3 1.5.10 3 1.5.12 WARNING Other requirements and other EU Directives may be appl
29、icable to the product(s) falling within the scope of this standard. 4DIN EN ISO 11145:2016-10 EN ISO 11145:2016 (E) ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standar
30、ds 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
31、 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 part
32、icular 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 t
33、his 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 ww
34、w.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 ISOs adherence to th
35、e WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe 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
36、(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.5DIN EN ISO 11145:2016-10 EN ISO 11145:2016 (E) 1 ScopeThis Intern
37、ational 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 d
38、own in this International Standard differs from that given in IEC 608251. ISO and IEC have discussed this difference and agree that it reflects the different purposes for which the two standards serve. For more details, see informative Annex A.2 Symbols and units of measurement2.1 The spatial distri
39、bution of power (energy) density of a laser beam does not always have circular symmetry. Therefore, all terms related to these distributions are split into those for beams with circular and those with non-circular cross-sections. A circular beam is characterized by its radius, w, or diameter, d. For
40、 a non-circular beam, the beam widths, dxand dy, for two orthogonal directions have to be given.2.2 The spatial distributions of laser beams do not have sharp edges. Therefore, it is necessary to define the power (energy) values to which the spatial terms refer. Depending on the application, differe
41、nt cut-off values can be chosen (for example 1/e, 1/e2, 1/10 of peak value).To clarify this situation, this International Standard uses the subscript u for all related terms to denote the percentage of the total beam power (energy) taken into account for a given parameter.NOTE For the same power (en
42、ergy) content, beam width dx,uand beam diameter du(= 2wu) can differ for the same value of u (for example, for a circularly symmetric Gaussian beam d86,5is equal to dx,95,4).Table 1 lists symbols and units which are defined in detail in Clause 3.Table 1 Symbols and units of measurementSymbol Unit Te
43、rmAuor Am2Beam cross-sectional areaduor dm Beam diameterdx,uor dxm Beam width in x-directiondy,uor dym Beam width in y-directiond0,uor d0m Beam waist diameterd0/4 rad m Beam parameter productEuor EW/m2Average power densityfpHz Pulse repetition rateHuor HJ/m2Average energy densityK 1 Beam propagation
44、 factorlcm Coherence lengthM21 Beam propagation ratiop 1 Degree of linear polarizationP W Cw-power6DIN EN ISO 11145:2016-10 EN ISO 11145:2016 (E) Symbol Unit TermPavW Average powerPHW Pulse powerPpkW Peak powerQ J Pulse energyR( f ) Hz1or dB/Hz Relative intensity noise, RINwuor wm Beam radiusw0,uor
45、w0m Beam waist radiuszRm Rayleigh length m Misalignment angle m Spectral bandwidth in terms of wavelength HzSpectral bandwidth in terms of optical frequencyx(z) m Beam positional stability in x-directiony(z) m Beam positional stability in y-directionzam Astigmatic waist separationzr1 Relative astigm
46、atic waist separation 1 Ellipticity of a power density distributionL1 Laser efficiencyQ1 Quantum efficiencyT1 Device efficiencyuor rad Divergence anglex,uor xrad Divergence angle for x-directiony,uor yrad Divergence angle for y-direction m WavelengthHs Pulse duration10s 10 %-pulse durationcs Coheren
47、ce timeNOTE R( f ) expressed in dB/Hz equals 10 log10R( f ) with R( f ) given in Hz1.When stating quantities marked by an index “u”, “u” shall always be replaced by the concrete number, e.g. A90for u = 90 %.In contrast to these quantities defined by setting a cut-off value “encircled power (energy)”
48、, the beam widths and derived beam properties can also be defined based on the second moment of the power (energy) density distribution function (see 3.5.2). Only beam propagation ratios based on beam widths and divergence angles derived from the second moments of the power (energy) density distribu
49、tion function allow calculation of the beam propagation. Quantities based on the second moment are marked by a subscript “”.3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.Table 1 (continued)7DIN EN ISO 11145:2016-10 EN ISO 11145:2016 (E) 3.1 Beam axis3.1.1beam axisstraight line connecting the centroids defined by the first spatial moment of the cross-sectional pr
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