EN ISO 8980-1-2017 en Ophthalmic optics - Uncut finished spectacle lenses - Part 1 Specifications for single-vision and multifocal lenses.pdf

1、Ophthalmic optics - Uncut finished spectacle lensesPart 1: Specifications for single-vision and multifocal lenses (ISO 8980-1:2017)BS EN ISO 8980-1:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of

2、EN ISO 8980-1:2017. It supersedes BS EN ISO 8980-1:2004 , which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee CH/172/3, Spectacles.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not p

3、urport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 89527 2ICS 11.040.70Compliance with a British Standard cannot confer immunity from legal oblig

4、ations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 8980-1:2017EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 8980-1August 2

5、017ICS 11.040.70 Supersedes EN ISO 8980-1:2004EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN Ref. No. EN ISO 8980-1:2017: EAll rights of exploitation in any form and by any me

6、ans reserved worldwide for CEN national MembersOphthalmic optics - Uncut finished spectacle lenses - Part 1: Specifications for single-vision and multifocal lenses (ISO 8980-1:2017)Optique ophtalmique - Verres de lunettes finis non dtours - Partie 1: Spcifications pour les verres unifocaux et multif

7、ocaux (ISO 8980-1:2017)Augenoptik - Rohkantige fertige Brillenglser - Teil 1: Anforderungen an Ein- und Mehrstrkenglser (ISO 8980-1:2017)This European Standard was approved by CEN on 26 May 2017.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions

8、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 thr

9、ee 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 bod

10、ies 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, Serbia, Slovakia, Slo

11、venia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN ISO 8980-1:2017 (E)European forewordThis document (EN ISO 8980-1:2017) has been prepared by Technical Committee ISO/TC 172 “Optics and photonics“ in collaboration with Technical Committee CEN/TC 170 “Ophthalmic optics” th

12、e 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 February 2018, and conflicting national standards shall be withdrawn at the latest by February 2018.Attention

13、is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.This document supersedes EN ISO 8980-1:2004 .According to the CEN-CENELEC Internal Regulations, the national sta

14、ndards 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,

15、Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 8980-1:2017 has been approved by CEN as EN ISO 8980-1:2017 without any modification.2BS EN ISO 8980-1:2017ISO 898

16、0-1:2017(E)Foreword iv1 Scope .12 Normative references 13 Terms and definitions .14 Classification 15 Requirements 25.1 Reference temperature 25.2 Optical requirements .25.2.1 General25.2.2 Back vertex power 25.2.3 Direction of the cylinder axis 25.2.4 Addition power for multifocal lenses .35.2.5 Pr

17、ismatic power .35.2.6 Prism base setting 45.3 Geometrical requirements 45.3.1 Requirements for size and thickness .45.3.2 Requirements on segment dimensions for multifocal lenses .55.4 Orientation requirement for polarizing lenses .56 Verification methods 56.1 General .56.2 Verification method for b

18、ack vertex power56.3 Verification method for the direction of the cylinder axis.56.3.1 General56.3.2 Single-vision lenses .56.3.3 Multifocal lenses.56.4 Verification method for prismatic power.66.4.1 General66.4.2 Single-vision lenses (excluding position-specific single-vision lenses) .66.4.3 Positi

19、on-specific single-vision lenses 66.4.4 Multifocal lenses.66.5 Verification method for addition power .66.5.1 General66.5.2 Procedure .66.6 Verification method for segment size 76.7 Inspection method for material and surface quality 77 Marking requirements for single-vision lenses .77.1 Position-spe

20、cific single-vision lenses 77.2 Polarizing lenses 78 Identification and information 89 Reference to this document 8Annex A (informative) Material and surface quality9Bibliography .10 ISO 2017 All rights reserved iiiContents PageBS EN ISO 8980-1:2017ISO 8980-1:2017(E)ForewordISO (the International Or

21、ganization 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 establ

22、ished 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 standardizati

23、on.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

24、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 pat

25、ent 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

26、an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.is

27、o.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee SC 7, Ophthalmic optics and instruments.This fourth edition cancels and replaces the third edition (ISO 8980-1:2004), which has been technically revised. It also incorporates the

28、Technical Corrigendum ISO 8980-1:2004/Cor.1:2006.A list of all parts in the ISO 8980 series can be found on the ISO website.iv ISO 2017 All rights reservedBS EN ISO 8980-1:2017Ophthalmic optics - Uncut finished spectacle lenses Part : Specifications for single-vision and multifocal lenses (ISO 8980-

29、1:2017)1 ScopeThis document specifies requirements and verification methods for the optical and geometrical properties for uncut finished single-vision and multifocal spectacle lenses.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their co

30、ntent 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.ISO 7944, Optics and optical instruments Reference wavelengthsISO 8429, Optics and optical i

31、nstruments Ophthalmology Graduated dial scaleISO 8598-1, Optics and optical instruments Focimeters Part 1: General purpose instrumentsISO 8980-3, Ophthalmic optics Uncut finished spectacle lenses Part 3: Transmittance specifications and test methodsISO 13666, Ophthalmic optics Spectacle lenses Vocab

32、ularyISO 14889, Ophthalmic optics Spectacle lenses Fundamental requirements for uncut finished lensesISO 21987, Ophthalmic optics Mounted spectacle lenses3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 13666 and ISO 21987 apply.ISO and IEC maintain te

33、rminological databases for use in standardization at the following addresses: ISO Online browsing platform: available at http:/www.iso.org/obp IEC Electropedia: available at http:/www.electropedia.org/ 4 ClassificationUncut finished lenses are classified as follows:a) single-vision finished lenses;b

34、) multifocal finished lenses;c) power-variation finished lenses.INTERNATIONAL STANDARD ISO 8980-1:2017(E) ISO 2017 All rights reserved 1BS EN ISO 8980-1:2017ISO 8980-1:2017(E)5 Requirements5.1 Reference temperatureThe tolerances shall apply at a temperature of 23 C 5 C.5.2 Optical requirements5.2.1

35、GeneralThe optical characteristics shall be verified using a focimeter conforming to the requirements of ISO 8598-1.The optical tolerances shall apply at the reference point(s) of the lens at one of the reference wavelengths specified in ISO 7944.If the manufacturer states a verification power, then

36、 the ranges and tolerances in Table 1 to Table 4 shall be chosen according to and applied to the verification power. In this case, the verification power may be stated by the manufacturer on the package or in an accompanying document.5.2.2 Back vertex powerWhen verified according to 5.2.1, spectacle

37、 lenses shall comply with the tolerances on the power of each principal meridian (see Table 1, second column), and with the tolerances on the cylindrical power (see Table 1, third to sixth column), using the method specified in 6.2.Table 1 Tolerances on the back vertex power of lensesValues in diopt

38、res (D)Power of prin-cipal meridian with higher absolute back vertex powerTolerance on the back ver-tex power of each princi-pal meridianTolerance on the absolute cylindrical power0,00 and 0,75 0,75 and 4,00 4,00 and 6,00 6,000,00 and 3,00 0,12 0,09 0,12 0,18 3,00 and 6,00 0,12 0,12 0,12 0,18 0,256,

39、00 and 9,00 0,12 0,12 0,18 0,18 0,259,00 and 12,00 0,18 0,12 0,18 0,25 0,2512,00 and 20,00 0,25 0,18 0,25 0,25 0,2520,00 0,37 0,25 0,25 0,37 0,375.2.3 Direction of the cylinder axisWhen verified according to 5.2.1 and using the method specified in 6.3, the direction of the cylinder axis shall comply

40、 with the tolerances specified in Table 2. The cylinder axis shall be specified in accordance with ISO 8429.These tolerances apply to multifocal lenses and to single-vision lenses with a predetermined orientation, e.g. prism base setting and/or position-specific single-vision lenses.NOTE There are n

41、o requirements for the axis direction for cylindrical power of less than 0,12 D.2 ISO 2017 All rights reservedBS EN ISO 8980-1:2017ISO 8980-1:2017(E)Table 2 Tolerances on the direction of the cylinder axisAbsolute cylindrical powerdioptres (D) 0,25and0,500,50and0,750,75and1,501,50Tolerance on the di

42、rection of the cylinder axisdegrees ()No requirement14 7 5 3 25.2.4 Addition power for multifocal lensesWhen verified according to 5.2.1 using the method specified in 6.5, the addition power shall comply with the tolerances specified in Table 3.Table 3 Tolerances on the addition power for multifocal

43、 lensesValues in dioptres (D)Value of the addition power 4,00 4,00Tolerance 0,12 0,185.2.5 Prismatic powerWhen verified according to 5.2.1 and using the method specified in 6.4, the total prism (including ordered and thickness reduction prism) shall comply with the tolerance(s) given in Table 4. Len

44、ses with no ordered prism are also included.To determine the prismatic power tolerances, find the value S of the higher absolute principal power. Then:a) for single-vision lenses with no specific orientation, the row in Table 4 is chosen according to the value of the total prism and the tolerance se

45、lected from the second column;b) for position-specific single-vision lenses and multifocal lenses:1) if ordered as an oblique prism, resolve any ordered prism into its horizontal and vertical components;2) determine the horizontal prism tolerances in the row in Table 4 according to the total horizon

46、tal prism component using the third column;3) determine the vertical prism tolerances in the row in Table 4 according to the total vertical prism component using the fourth column. ISO 2017 All rights reserved 3BS EN ISO 8980-1:2017ISO 8980-1:2017(E)Table 4 Prismatic toleranceValues in prism dioptre

47、s ()Higher total prism component valueType of lensSingle-visionMultifocal and position-specific single-vision lensesHorizontal component Vertical component0,00 and 2,00 0,25 + (0,1 S) 0,25 + (0,1 S) 0,25 + (0,05 S)2,00 and 10,00 0,37 + (0,1 S) 0,37 + (0,1 S) 0,37 + (0,05 S)10,00 0,50 + (0,1 S) 0,50

48、+ (0,1 S) 0,50 + (0,05 S)NOTE 1 S is the focal power, in dioptres, in the meridian of higher absolute principal power.NOTE 2 (0,1 S) corresponds to the prismatic effect of 0,1 cm (1 mm) displacement, while (0,05 S) corre-sponds to the prismatic effect of 0,05 cm (0,5 mm) displacement.NOTE An example

49、 of applying the tolerances in Table 4 to a distance power of +0,50 D sphere /2,50 D cylinder axis 20 in a multifocal prescription with a prismatic power of not greater than 2,00 is as follows:For this prescription, the principal powers are +0,50 D and 2,00 D so that higher absolute principal power is 2,00 D. For a power of 2,00 D, the horizontal tolerance is 0,25 + (0,1 2,00) = 0,45 . The vertical to