SIST EN ISO 8624:2011

SLOVENSKI STANDARD
SIST EN ISO 8624:2011
01-april-2011
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SIST EN ISO 8624:2002
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Ophthalmic optics - Spectacle frames - Measuring system and terminology (ISO
8624:2011)
Augenoptik - Brillenfassungen - Maßsystem und Begriffe (ISO 8624:2011)
Optique ophtalmique - Montures de lunettes - Système de mesure et terminologie (ISO
8624:2011)
Ta slovenski standard je istoveten z: EN ISO 8624:2011
ICS:
11.040.70 Oftalmološka oprema Ophthalmic equipment
SIST EN ISO 8624:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 8624:2011

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SIST EN ISO 8624:2011


EUROPEAN STANDARD
EN ISO 8624

NORME EUROPÉENNE

EUROPÄISCHE NORM
February 2011
ICS 11.040.70 Supersedes EN ISO 8624:2002
English Version
Ophthalmic optics - Spectacle frames - Measuring system and
terminology (ISO 8624:2011)
Optique ophtalmique - Montures de lunettes - Système de Augenoptik - Brillenfassungen - Maßsystem und Begriffe
mesure et terminologie (ISO 8624:2011) (ISO 8624:2011)
This European Standard was approved by CEN on 5 February 2011.

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 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 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 bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8624:2011: E
worldwide for CEN national Members.

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SIST EN ISO 8624:2011
EN ISO 8624:2011 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 8624:2011
EN ISO 8624:2011 (E)
Foreword
This document (EN ISO 8624:2011) has been prepared by Technical Committee ISO/TC 172 "Optics and
photonics" 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 publication of an identical
text or by endorsement, at the latest by August 2011, and conflicting national standards shall be withdrawn at
the latest by August 2011.
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 8624:2002.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 8624:2011 has been approved by CEN as a EN ISO 8624:2011 without any modification.

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SIST EN ISO 8624:2011

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SIST EN ISO 8624:2011

INTERNATIONAL ISO
STANDARD 8624
Third edition
2011-02-15

Ophthalmic optics — Spectacle frames —
Measuring system and terminology
Optique ophtalmique — Montures de lunettes — Système de mesure et
terminologie




Reference number
ISO 8624:2011(E)
©
ISO 2011

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SIST EN ISO 8624:2011
ISO 8624:2011(E)
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ii © ISO 2011 – All rights reserved

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SIST EN ISO 8624:2011
ISO 8624:2011(E)
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 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
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 International 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 the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 8624 was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee SC 7,
Ophthalmic optics and instruments.
This third edition cancels and replaces the second edition (ISO 8624:2002), which has been technically
revised.

© ISO 2011 – All rights reserved iii

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SIST EN ISO 8624:2011

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SIST EN ISO 8624:2011
INTERNATIONAL STANDARD ISO 8624:2011(E)

Ophthalmic optics — Spectacle frames — Measuring system
and terminology
1 Scope
This International Standard specifies a measuring system for spectacle frames and related terminology. It is
applicable to fronts which are intended to be symmetrical.
2 Terms, definitions and symbols
For the purposes of this document, the following terms, definitions and symbols apply. For complementary
terms and definitions, see Annex A.
2.1
boxed centre
C
intersection of the horizontal centreline (A.1) and vertical centreline (A.2) of the rectangular box which
circumscribes the lens shape (A.10)
See Figure 1.
2.2
horizontal boxed lens size
horizontal lens size
a
distance between the vertical sides of the rectangular box which circumscribes the lens shape (A.10)
See Figure 1.
NOTE For spectacle frames having a significant face for
...