1、 - - STD-BSI BS EN IS0 LL380-ENGL 1775 lb2Libb Ob231118 8111 BRITISH STANDARD I Optics and optical instruments - Ophthalmic optics - Formers * * vi The European Standard EN Is0 11380 : 1996 has the status of a British Standard ICs 11.040.70 3s EN IS0 L1380 : 1997 nccurpomting mendment No. 1 to 3SIS0
2、 11380: 199.4 vhich renumbers the 3s IS0 as 3SEN IS0 11380 : 1997 NO COPYING WITHOUT BSI PERMISSION EXCEPT As PERMmD BY COPYRIGHT LAW - STD-BSI BS EN IS0 LL38-ENGL 1775 LbZqbb7 Ob231Y7 788 BS EN IS0 11380 : 1997 Issue 2, June 1997 AmdNo. Committees responsible for this British Standard Date Text aff
3、ected The preparation of this British Standard was entrusted to Technicai Committee HCCi78, Ophthalmic optics, upon which the following bodies were represented: 9447 Association of British Dispensing Opticians Association of British Hdthare industries Association of Contact Lens Manufacturexs Britis
4、h College of Optometrists British Contact Lens Association British Medical Association British Spectacle Frame Makers? Association Consumer Policy Committee of BSI Consumers? Association Department of Health Department of We and Industry (National Physical Laboratory) Federation of Manufm Opticians
5、Federation of phthamic and Dispensing pticians Flat Glass Manufac?Association Royal Coilege of Ophthalmologists tic ww June 1997 Adoption as a European standard rHau?/) miu ?n, ?S/6 (-I3 This British Standard, having been prepared under the direction of the Health and Environment Sector Board, was p
6、ublished under the authority of the Standards Board and comes into effect on 15 June 1995 0 BSI 1997 The foliowing ES1 references relate to the work on this standard: Committee reference HCW8 Draft for comment 9255458 DC i3 W ISBN O 580 24188 2 P Issue 1, June 1997 BS EN IS0 11380 : 1997 Front cover
7、 Inside front cover b i ii EN title page iib a Summary of pages The foilowing table identifies the current issue of each page. Issue 1 indicates that a page has been introduced for the rst time by amendment. Subsequent issue numbers indicate an updated page. Vertical sidelining on replacement pages
8、indicates the most recent changes (amendment, addition, deletion). 2 IS0 title page 2 IS0 foreword 1 .1 blank I 2 2 3 blank 4 1 Inside back cover 1 Back cover Issue onginai Original Original Original Originai blank blank 2 Change of identifier Wherever BS IS0 11380 : 1994 appears in this standard, i
9、t should be read as BS EN IS0 11380 : 1997. O BSI 1997 a - STD-BSI BS EN IS0 1138O-ENGL 1995 Lb2LibbS Ob23151 33b = hue 2, June 1997 BS EN IS0 11380 : 1991 National foreword This British Standard was prepared by Technical Coxnmitke Cw78 (formerly HCCn8). It is the English language version of EN IS0
10、11380 : 1996 Opth und optical instruments - Ophthalmic optics -Formers, published by the European Committee for Standardization (CEN). It is identical with IS0 11380 : 1994, published by the Jnkrnationai Organization for Standardization (ISO). Compliance with a British Standard does not of itself co
11、nfer immunity from legal obligations. O BSI 1997 1 STD=BSI BS EN IS0 11380-ENGL 1995 lb24bb7 Ob23152 272 W EUROPEAN STANDARD EN IS0 11380 NORME EUROPENNE EUROP- NORM June 19% ICs 11.004.70 English version tics and optical instruments - phthalmic optics - Formers (IS0 11380 : 1994) Optique et instnim
12、 ents doptique - Optique ophtaimique - Gabarits (Is0 11380 : 1994) Optik und optische htrumente - Augenoptik - Formscheiben (Is0 11380 : 1994) This European Standard was approved by CEN on 1996-0601. CEN members are bound to comply with the CENKENELEC Internai Regulations which stipulate the conditi
13、ons for giving this European Standard the status of a national standard without any aiteration. Upto-date lists and bibtiographical 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 off
14、icial versions (English, kench, German). A version in any other language made by b) model identification: c) letter “N“ in combination with a boxing symbol to indicate the nasal side of the formers. Formers of the type specifid in 2.1 shall in addition be marked with the horizontal boxed lens size,
15、in millimetres. 1 STD-BSI BS EN IS0 11lBO-ENGL 1995 Lb24bb9 Ob23157 859 IS0 11380:1994(E) Formers of the type specified in 2.2 shall in addition be marked with the horizontal boxed lens size, in millimetres, that it it is intended to reproduce, and shall also carry the words “aperture size“. The ind
16、ication of the centreline and of the vertical axis with short marks on one or on both sides of the for- mers is optional. However, if marks are applied they shall not vary more than O25 j 16 t0.025 94 t0.02 - +0,025 1 2 x 0 2.1 o 2 x 0 1.98 *O.OS a) b) 2 x 0 3.1 - +0.2 0 12,l o Figure 2 - Standardiz
17、ed system of holes Locating marks Space tor manufacturers or suppliers identification Space for dimensional 1 inf orrnation Space for model identification Figure 3 - Preferred locations of markings IS0 11380:1994(E) ICs 11.040.70 Descriptors: optical equipment, ophthalmic optics, eyeglasses, correct
18、ive lenses, patterns, specifications, dimensions, marking. - STD-BSI BS EN IS0 L13BO-ENGL 1775 = Lb24bb7 Ub231b0 349 = BS EN IS0 11380 : 1997 BSI 389 Chiswick High Road London w4 4AL Issue 2, June 1997 BSI - British Standards Institution BSI is the independent national body responsible for preparing
19、 British Standards. It presents the UK view on standads in Europe and at the international level. It is incorporated by Royal Charter. Contract requirements A British Standard does not purport to include ail the necessary provisions of a contract. Users of British Standards are responsible for their
20、 correct application. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI improve the quaiity of our products and services. We would be 8rateful if anyone find
21、ing an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the responsible technical committee, the identity of which can be found on the inside front cover. Tel: 0181 996 9000; Fax: O181 996 7400. BSI offers members an individual updating service ded PLUS which e
22、nsures that subscribers automatically receive the latest editions of standards. Buying standards Orders for ail BSI, international and foreign standards publications should be addressed to Customer Services, Sales Department at Chiswick Tel: 0181 996 7000; Fax: 0181 996 7001. In response to orders f
23、or international standards, it is BSI poiicy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library, t
24、he Standarine Database, the BSI Information Technology Service (3JTS) and its Technical Help to Exporters Service. Contact the Information DepaItment at Chiswick Tel 0181 996 7111; Fax: O181 996 7048. Subscribing members of BSI are kept up to date with standarcis developments and receive substantial
25、 discounts on the purchase price of standards. For details of these and other benefits contact Customer Services, Membership at Chiswick Tel 0181 996 7002; Fax: 0181 996 7001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the in
26、trnational standardization bodies. Except as permitted under the Copynght, Designs and Patents Act 1988 no extract may be reproduced, stored in a rettieva system or transmitXed in any form or by any means - electronic, photocopying, recording or otherwise - without prior written permission from BSI.
27、 This does not preclude the free we, in the course of implementing the standard, of necessary dem such as symbols, and size, type or grade designations. if these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission
28、is granted, the tem may include royaity payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager, BSI, 389 Chiswick High Road, London W4 41v, STD-BSI BS EN IS0 LL3BCl-ENGL 1795 a lb24bb7 Ob23LbL 285 AMD 9447 Amendment No. 1 published and effective from 15 June
29、 1997 to BS IS0 11380 : 1994 Optics and optical instruments - Ophthalmic optics - Formers Instructions for replacement of pages Where only one of the two pages on each sheet has been upated, the other page has been reprinted. Front cover and inside front cover aandb Replace the pages Insert the page
30、s immediately after the inside front cover iandii Replace the pages EN title page and iib Insert the pages immediately after page ii Inside back cover and back cover Replace the pages You may wish to retain the superseded pages, e.g. for reference purposes, if so please mark them Superseded by issue
31、 X, where X is the appropriate issue number. If you do not wish to retain the superseded pages, please destroy them. i b BRITISH STANDARD Optics and optical instruments - Ophthalmic optics - Formers BS EN IS0 11380 : 1997 * * ui The European Standard EN IS0 11380 : 1996 has the status of a British S
32、tandard ICs 11.040.70 NO COPYING WITHOUT BSI PERBUSSION EXCEPT AS PERMIITED BY COPRIGHT LAW izcorporntirtg l;mendment No. 1 to 3s IS0 11380 : 1994 ohich renumbers the 3s IS0 as 3SENISO11380: 1997 STDeBSI BS EN IS0 LL3BO-ENGL 1995 = lb2Vbb9 Ob23Lb3 058 BS EN IS0 11380 : 1997 Issue 2, June 1997 Commit
33、tees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee HCCflS, Ophthalmic optics, upon which the following bodies were represented: Association of British Dispensing Opticians Association of British Healthcase Industries Association o
34、f Contact Lens Manufacturem British College of Optornetontract requirements i British Standard does not purport to include al the necessary provisions of a ;ontracL Users of British Standards are responsible for their correct applicaon. Levisions 3rish Standards are updated by amendment or revision.
35、 Users of British Standards ihould make sure that they possess the latest amendments or editions. t is the constant aim of BSI t8 improve the quaty of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this 3ritish Standard would inform the Secre
36、tary of the responsible technical committee, he identity of which can be found on the inside front cover. Tel 0181 996 9000; Fax: 1181 996 7400. 3SI offers members an individual updating service called PLUS which ensures that rubscribers automatically receive the latest editions of standards. Buying
37、 standards kders for al BSI, intemaiionai and foreign standards publications should be iddressed to Customer Services, Sales Depariment at Chiswick Tel: 0181 996 7000; ?ax: 0181 996 7001. h response to orders for international standards, it is BSI policy to supply the BSI mplementation of those that
38、 have been published as British Standards, unless 3therwise requested. nformation on standards BSI provides a wide range of information on national, European and international jtandards through its Library, the Standaniline Database, the BSI Information iechnology Service ITS) and its Technical Help
39、 to Exporters Service. Contact the hformation Department at Chiswick Tel O181 996 7111; Fax: 0181 996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact
40、 Customer Services, Membership at Chiswick Tel: 0181 996 7002; Fax: 0181 996 7001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Pate
41、nts Act 1988 no exhwt may be reproduced, stored in a retrieval system or transmitted in any form or by any means - electronic, photocopying, recording or otherwise - without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessa
42、ry details such as symbols, and size, type or grade designations. If these details are to be useci for any other purpose than implementation then the prior written permission of BSI must be obtained. if permission is granted, the terms may include royalty payments or a licensing agreement Details and advice can be obtained from the Copyright Manager, BI, 389 Chiswick High Road, London W4 4A.L ,
