《BS-EN-ISO-8980-3-2004.pdf》由会员分享，可在线阅读，更多相关《BS-EN-ISO-8980-3-2004.pdf（24页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN ISO 8980-3:2004 Ophthalmic optics Uncut finished spectacle lenses Part 3: Transmittance specifications and test methods The European Standard EN ISO 8980-3:2004 has the status of a British Standard ICS 11.040.70 ? BS EN ISO 8980-3:2004 This British Standard was published under
2、 the authority of the Standards Policy and Strategy Committee on 21 December 2004 BSI 21 December 2004 ISBN 0 580 45136 4 National foreword This British Standard is the official English language version of EN ISO 8980-3:2004. It is identical with ISO 8980-3:2003. It supersedes BS EN ISO 8980-3:1999
3、which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee CH/172, Ophthalmic optics, to Subcommittee CH/172/3, Spectacles, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cro
4、ss-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of
5、 British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; p
6、resent to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover,
7、an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 15 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROP
8、EAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8980-3 December 2004 ICS 11.040.70 Supersedes EN ISO 8980-3:1999 English version Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods (ISO 8980- 3:2004) Optique ophtalmique - Verres de lunettes
9、 finis non dtours - Partie 3: Spcifications relatives au facteur de transmission et mthodes dessai (ISO 8980-3:2004) This European Standard was approved by CEN on 8 September 2003. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving thi
10、s 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 Central Secretariat or to any CEN member. This European Standard exists in three official versions (E
11、nglish, 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus,
12、 Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN
13、DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8980-3:2004: E NE IS98 O4002:3-08 E() 2 Foreword This document (EN ISO
14、8980-3:2004) has been prepared by Technical Committee ISO/TC 172 “Optics and optical instruments“ in collaboration with Technical Committee CEN/TC 170 “Ophthalmic optics“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publ
15、ication of an identical text or by endorsement, at the latest by June 2005, and conflicting national standards shall be withdrawn at the latest by June 2005. This document supersedes EN ISO 8980-3 :1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the f
16、ollowing countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sw
17、eden, Switzerland and United Kingdom. Endorsement notice The text of ISO 8980-3:2004 has been approved by CEN as EN ISO 8980-3:2004 without any modifications. EN ISO 89803:2004 Reference number ISO 8980-3:2003(E) OSI 3002 INTERNATIONAL STANDARD ISO 8980-3 Second edition 2003-10-01 Ophthalmic optics
18、Uncut finished spectacle lenses Part 3: Transmittance specifications and test methods Optique ophtalmique Verres de lunettes finis non dtours Partie 3: Spcifications relatives au facteur de transmission et mthodes dessai EN ISO 89803:2004 IS-0898 O3:(3002E) DPlcsid Fremia ihTs PDF file may ctnoian e
19、mdebt dedyfepcaes. In ccaocnadrw eith Aebods licensilop gnic,y this file mairp eb ynted iv roweb detu slahl ton ide ebtlnu deess the typefaces whice era hml era deddebicsnede to i dnanstlaled t noeh computfrep reormign tide ehtin.g In wodlnidaot gnhis file, trapise atpecc tiereht nser ehnopsiiblity
20、fo not infriigngn Aebods licensilop gnic.y ehT ISO tneClar Secrteiraat caceptl on siibality in this .aera Ai ebods a tredamafo kr Aebod SystemI sncotaropr.de teDails fo teh softwacudorp erts sut deo crtaee this PDF file cna f ebi dnuon tlareneG eh Info leratit evo the file; tP ehDc-Frtaeion marapter
21、ew setpo erimizde for irpnti.gn Evyre caer neeb sah taken to sneeru that the file is suitlbae fosu re yb ISO memdob rebeis. In tlnu ehikletneve y ttah lborp aem leratit gno it is f,dnuo plsaee inform ttneC ehlar Secrteiraat ta the serddaig sleb nevwo. ISO 3002 All irthgs erse.devr lnUeto sswrehise s
22、pecified, on trap fo this lbupictaion maeb y cudorperro de tuilizi den yna form ro na ybm ynae,s lecetrinoc ro mecinahcal, inclidung tohpcoiypodna gn micrfoilm, wittuoh repmissii non writign from ietI rehSa Ot tsserdda eh ebolw or ISOs memreb i ydobn the cnuotrfo y ttseuqer ehe.r ISO cirypothg fofic
23、e saCe tsopale 65 eneG 1121-HC 02 av leT. 4 + 10 947 22 1 11 xaF0 947 22 14 + 9 74 E-mail coirypthgiso.o gr We bwww.is.o gro Pulbisdehi n Switlrez dna ii ISO 3002 Allr ihgtsser edevr EN ISO 89803:2004 IS-0898 O3:(3002E) I SO 3002 All irhgts seredevr iii Contents Page Forewordiv 1 Scope1 2 Normative
24、references .1 3 Terms and definitions.1 4 Classification.2 5 Requirements 2 5.1 General.2 5.2 General transmittance requirements 2 5.3 Requirements for driving .2 5.4 Transmittance requirements for special types of spectacle lenses2 5.5 Resistance to radiation.4 6 Testing4 6.1 General.4 6.2 Spectral
25、 transmittance .4 6.3 Luminous transmittance and relative visual attenuation coefficient (quotient).4 6.4 Ultraviolet transmittance5 6.5 Transmittance properties of photochromic spectacle lenses and photochromic specimens5 6.6 Test methods for polarizing spectacle lenses.7 6.7 Determination of resis
26、tance to radiation9 7 Information.9 Annex A (normative) Spectral weighting functions for calculating relative visual attenuation quotients10 Annex B (normative) Calculation of solar UV transmittance values.12 Annex C (informative) Spectral radiation risks14 Bibliography .15 EN ISO 89803:2004 IS-0898
27、 O3:(3002E) iv I SO 3002 All irhgts seredevr 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 memb
28、er 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 Ele
29、ctrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adop
30、ted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of pate
31、nt rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 8980-3 was prepared by Technical Committee ISO/TC 172, Optics and optical instruments, Subcommittee SC 7, Ophthalmic optics and instruments. This second edition cancels and replaces the first edition (ISO
32、 8980-3:1999), subclause 6.5 of which has been technically revised. ISO 8980 consists of the following parts, under the general title Ophthalmic optics Uncut finished spectacle lenses: Part 1: Specifications for single-vision and multifocal lenses Part 2: Specifications for progressive power lenses
33、Part 3: Transmittance specifications and test methods Part 4: Specifications and test methods for anti-reflective coatings EN ISO 89803:2004 INTENRATIONAL TSANDADR IS-0898 O3:(3002E) I SO 3002 All irhgts seredevr 1 Ophthalmic optics Uncut finished spectacle lenses Part 3: Transmittance specification
34、s and test methods 1 Scope This part of ISO 8980 specifies requirements for the transmittance properties of uncut finished spectacle lenses. This part of ISO 8980 is not applicable to spectacle lenses having particular transmittance or absorption characteristics prescribed for medical reasons; produ
35、cts where specific personal protective equipment transmittance standards apply. NOTE Optical and geometric requirements for uncut finished spectacle lenses are specified in ISO 8980-1 and ISO 8980-2. 2 Normative references The following referenced documents are indispensable for the application of t
36、his document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 13666, Ophthalmic optics Spectacle lenses Vocabulary ISO 14889, Ophthalmic optics Spectacle lenses Fundamental requirement
37、s for uncut finished lenses ISO/CIE1) 10526, CIE standard illuminants for colorimetry ISO/CIE 10527, CIE standard colorimetric observers 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 13666 apply. 1) International Commission on Illumination, Kegelga
38、sse 27, A-1030 Vienna. EN ISO 89803:2004 IS-0898 O3:(3002E) 2 I SO 3002 All irhgts seredevr 4 Classification Spectacle lenses are classified with respect to transmittance as follows: a) clear spectacle lenses; b) uniformly tinted spectacle lenses; c) gradient-tinted spectacle lenses; d) photochromic
39、 spectacle lenses; e) polarizing spectacle lenses. NOTE Two or more of the above classifications may be combined. 5 Requirements 5.1 General The requirements shall apply at a temperature of 23C 5C, and shall apply to the design reference point, unless specified otherwise. Measurements shall be made
40、with a test beam having a minimum width of 5 mm in any direction. 5.2 General transmittance requirements The general transmittance requirements specified in ISO 14889 shall apply. Spectacle lenses shall be attributed to five luminous transmittance categories as specified in Table 1, and shall be tes
41、ted as described in Clause 6. NOTE Table 1 also includes the UV requirements for spectacle lenses, but those spectacle lenses of category 0 for which no specific claim is made as to UV transmittance performance are excluded from the UV requirements of Table 1. For categories 0, 1, 2 and 3 the lumino
42、us transmittance v of the spectacle lens at the design reference point shall not lie outside the limits of the stated category by more than 2 % absolute. For category 4, the luminous transmittance v of the spectacle lens at the design reference point shall not lie outside the limits of that category
43、 by more than 20 % relative to the stated luminous transmittance. 5.3 Requirements for driving Spectacle lenses to be used by vehicle drivers shall conform to the specific requirements for transmittance specified in ISO 14889. 5.4 Transmittance requirements for special types of spectacle lenses 5.4.
44、1 Photochromic spectacle lenses 5.4.1.1 General When tested by the methods described in 6.5, the luminous transmittance values of a photochromic spectacle lens in its faded and in its darkened state shall be used to identify the appropriate categories in accordance with Table 1. EN ISO 89803:2004 IS
45、-0898 O3:(3002E) I SO 3002 All irhgts seredevr 3 Table 1 Categories for luminous transmittance and the related permissible transmittance in the ultraviolet solar spectral range Visible spectral range Ultraviolet spectral range Categories Range of luminous transmittance v Maximum value of solar UV-A
46、transmittance SUVA Maximum value of solar UV-B transmittance SUVB from over % to % over 315 nm to 380 nm UV-A over 280 nm to 315 nm UV-B 0 80,0 100 v 1 43,0 80,0 v 2 18,0 43,0 0,125 v 3 8,0 18,0 4 3,0 8,0 0,5 v 1,0 % absolute NOTE 1 Photochromic spectacle lenses are usually attributed to two categor
47、ies, corresponding to the faded state and to the darkened state. NOTE 2 The UV requirements of photochromic spectacle lenses in the darkened state may be checked in the faded state, if the UV requirements for the darkened state are met in the faded state. NOTE 3 It is recommended that uniform or gra
48、dient tints should be ordered by reference to a manufacturers identification code, name or reference number. 5.4.1.2 Photochromic response When tested by the methods described in 6.5.3.1 to 6.5.3.3, the ratio of the luminous transmittance of a photochromic specimen (see 6.5.1) in its faded state v(0
49、) and, after 15 min irradiation, in its darkened state v(15) shall be at least 1,25, i.e. (0) (15) v v 1,25 W (1) 5.4.1.3 Photochromic response at various temperatures (optional) If photochromic temperature sensitivity is stated, it shall be determined by measuring the luminous transmittance of the specimen (see 6.5.1) in the darkened state v(15) using the procedure described in 6.5.3.6 a