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1、BRITISH STANDARD BS EN ISO 14889:2003 Incorporating Corrigendum No. 1 Ophthalmic optics Spectacle lenses Fundamental requirements for uncut finished lenses The European Standard EN ISO 14889:2003 has the status of a British Standard ICS 11.040.70 ? BS EN ISO 14889:2003 This British Standard was publ
2、ished under the authority of the Standards Policy and Strategy Committee on 9 June 2003 BSI 19 August 2003 ISBN 0 580 41975 4 National foreword This British Standard is the official English language version of EN ISO 14889:2003. It is identical with ISO 14889:2003. It supersedes BS EN ISO 14889:1997
3、 which is withdrawn.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. Cr
4、oss-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 o
5、f 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;
6、present 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 and iii, a blank page, pages 1 to 7, the Annex ZA page, the Annex ZB page and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments
8、issued since publication Amd. No. DateComments 14633 Corrigendum No. 1 19 August 2003 Replacing the EN ISO foreword page and the Annex ZA page and incorporating the Annex ZB page EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14889 May 2003 ICS 11.040.70Supersedes EN ISO 14889:1997 English
9、 version Ophthalmic optics - Spectacle lenses - Fundamental requirements for uncut finished lenses (ISO 14889:2003) Optique ophtalmique - Verres de lunettes - Exigences fondamentales relatives aux verres finis non dtours (ISO 14889:2003) Augenoptik - Brillenglser - Grundlegende Anforderungen an rohk
10、antige fertige Brillenglser (ISO 14889:2003) This European Standard was approved by CEN on 16 April 2003. 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 alteratio
11、n. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the 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
12、under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
13、Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploita
14、tion in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14889:2003 E CORRECTED 2003-07-16 Foreword This document (EN ISO 14889:2003) has been prepared by Technical Committee ISO/TC 172 “Optics and optical instruments“ in collaboration with Technical Committee C
15、EN/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 publication of an identical text or by endorsement, at the latest by November 2003, and conflicting national standards shall be withdrawn at the
16、latest by November 2003. This document supersedes EN ISO 14889:1997. 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(s), see inf
17、ormative Annex ZB, 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, Czech Republic, Denmark, Finland, France, Germany, Greece
18、, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 14889:2003 has been approved by CEN as EN ISO 14889:2003 without any modifications. NOTE Normative references to Inter
19、national Standards are listed in Annex ZA (normative). EN ISO 14889:2003 Reference number ISO 14889:2003(E) INTERNATIONAL STANDARD ISO 14889 Second edition 2003-05-15 Ophthalmic optics Spectacle lenses Fundamental requirements for uncut finished lenses Optique ophtalmique Verres de lunettes Exigence
20、s fondamentales relatives aux verres finis non dtours EN ISO 14889:2003 ISO 14889:2003(E) DPlcsid Fremia ihTs PDF file mya ctnoian emdebt dedyfepcaes. In ccacnadrow eitA hebods licnesilop gnic,y tihs file mirp eb yatnde iv roweb detu slahl ton ide ebtlnu deess teh typfecaes wihce era hml era deddebi
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25、4889:2003 ISO 14889:2003(E) I SO 3002 All irhgts seredevr iii 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 comm
26、ittees. 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
27、International Electrotechnical 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 Internation
28、al Standards adopted 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 th
29、e subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14889 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 fi
30、rst edition (ISO 14889:1997), which has been technically revised. iii EN ISO 14889:2003 INTENRATIONAL TSANDADR IS:98841 O3002(E) I SO 3002 All irhgts seredevr 1 Ophthalmic optics Spectacle lenses Fundamental requirements for uncut finished lenses 1 Scope This International Standard specifies fundame
31、ntal requirements for uncut finished spectacle lenses. This International Standard is not applicable to protective spectacle lenses. This International Standard takes precedence over the corresponding requirements of other standards, if differences exist. 2 Normative references The following referen
32、ced documents are indispensable for the application 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 8980-1, Ophthalmic optics Uncut finished spectacle lenses Part 1:
33、Specifications for single-vision and multifocal lenses ISO 8980-2, Ophthalmic optics Uncut finished spectacle lenses Part 2: Specifications for progressive power lenses ISO 8980-3, Ophthalmic optics Uncut finished spectacle lenses Part 3: Transmittance specifications and test methods ISO 8980-4, Oph
34、thalmic optics Uncut finished spectacle lenses Part 4: Specifications and test methods for anti-reflective coatings ISO 13666, Ophthalmic optics Spectacle lenses Vocabulary 3 Terms and definitions For the purposes of this International Standard, the terms and definitions given in ISO 13666 as well a
35、s the following. 3.1 manufacturer (of an uncut finished spectacle lens) natural or legal person who places the uncut finished lens on the market 1 EN ISO 14889:2003 ISO 14889:2003(E) 2 I SO 3002 All irhgts seredevr 4 Fundamental requirements for spectacle lenses 4.1 Performance In addition to the re
36、quirements specified in this International Standard, uncut finished lenses shall comply with the relevant parts of ISO 8980. 4.2 Design Spectacle lenses shall be designed so that the overall risk associated with their use according to the conditions intended by the manufacturer, relative to the risk
37、 when the spectacle lenses are not used, is reduced to a level consistent with the materials used and compatible with the generally acknowledged state- of-the-art. 4.3 Materials 4.3.1 Physiological compatibility Lenses shall not be made from materials known to be physiologically incompatible or know
38、n to create allergic or toxic reactions amongst a significant proportion of wearers when the lenses are used as intended by the manufacturer. 4.3.2 Inflammability When the lens is tested as described in 5.2, there shall be no continued combustion after withdrawal of the test rod. 4.4 Mechanical stre
39、ngth Uncut spectacle lenses shall withstand the quasi-static loading type test for minimum robustness described in 5.3. The requirement for minimum robustness shall be satisfied if the spectacle lens withstands the application of a 22 mm diameter steel ball with a force of (100 2) N, when tested as
40、described in 5.3. This test shall be carried out immediately after conditioning at a temperature of (23 5) C. After this test, the following defects shall not be apparent: a) lens fracture A spectacle lens shall be considered to have fractured if it has cracked through its entire thickness into two
41、or more pieces or if more than 5 mg of the lens material has become detached from the surface away from the one in contact with the ball or if the ball has passed through the test specimen. b) lens deformation A spectacle lens shall be considered to have been deformed if a mark has appeared on the w
42、hite paper underneath the lens. NOTE If the spectacle lens is intended for use for industrial or other purposes where mechanical hazards exist, a higher level of mechanical strength or robustness may be required. If eye protection is required, the specific requirements are given in the appropriate I
43、nternational Standard. 2 EN ISO 14889:2003 ISO 14889:2003(E) I SO 3002 All irhgts seredevr 3 4.5 Transmittance 4.5.1 General requirements The transmittance shall conform to the requirements specified in ISO 8980-3. When using illuminant D 65, the luminous transmittance v of spectacle lenses shall no
44、t be u 3 % at the design reference point. 4.5.2 Additional requirements for lenses intended for use when driving 4.5.2.1 General Spectacle lenses having a luminous transmittance u 8 % are not intended for driving or road use. This clause therefore does not contain requirements for such lenses. 4.5.2
45、.2 Spectral transmittance The spectral transmittance () at any wavelength in the range 500 nm to 650 nm shall be not less than 0,2 v. 4.5.2.3 Daylight use When using illuminant D 65, the luminous transmittance v of spectacle lenses for driving during daylight shall be 8 % at the design reference poi
46、nt. 4.5.2.4 Use at night When using illuminant D 65, the luminous transmittance v of spectacle lenses for driving at night shall be W 75 % at the design reference point. 4.5.2.5 Relative visual attenuation coefficient (quotient) for signal light recognition Spectacle lenses conforming to 4.5.2.2, 4.
47、5.2.3 and 4.5.2.4 shall have a relative visual attenuation coefficient (quotient) Q not less than: a) 0,8 for Q red; b) 0,8 for Q yellow; c) 0,6 for Q green; d) 0,4 for Q blue. NOTE A definition of the relative visual attenuation coefficient (quotient) Q is given in ISO 13666. 5 Test methods 5.1 Gen
48、eral All tests described in this International Standard are type tests. 3 EN ISO 14889:2003 ISO 14889:2003(E) 4 I SO 3002 All irhgts seredevr 5.2 Inflammability 5.2.1 Apparatus The test device consists of a steel rod (300 3) mm long and 6 mm nominal diameter, with a flat end face perpendicular to it
49、s longitudinal axis, a heat source and a thermocouple with a temperature-indicating device. 5.2.2 Procedure Heat one end of the steel rod over a length of at least 50 mm to a temperature of (650 20) C. Measure the temperature of the rod by means of the thermocouple attached at a distance of (20 1) mm from the heated end of the rod. With the rod positioned with its axis vertical, allow the heated face of the r