EN ISO 8980-2:2004

Ophthalmic optics - Uncut finished spectacle lenses - Part 2: Specifications for progressive power lenses (ISO 8980-2:2004)

ISO 8980-2:2004 specifies requirements for the optical and geometrical properties for uncut finished progressive spectacle lenses.

Augenoptik - Rohkantige fertige Brillengläser - Teil 2: Anforderungen an Gleitsicht-Brillengläser (ISO 8980-2:2004)

Dieser Teil von ISO 8980 legt Anforderungen an die optischen und geometrischen Eigenschaften von rohkantigen fertigen Gleitsicht-Brillengläsern fest.

Optique ophtalmique - Verres de lunettes finis non détourés - Partie 2: Spécifications pour les verres progressifs (ISO 8980-2:2004)

L'ISO 8980-2:2004 spécifie les exigences pour les propriétés optiques et géométriques des verres de lunettes finis non détourés progressifs.

Očesna optika - Nebrušena zglajena stekla očal - 2. del: Specifikacije za progresivna stekla (ISO 8980-2:2004)

General Information

• Status: Withdrawn
• Publication Date: 31-Jan-2004
• Withdrawal Date: 29-Aug-2017
• ICS: 11.040.70 - Ophthalmic equipment
• Technical Committee: CEN/TC 170 - Ophthalmic optics
• Drafting Committee: CEN/TC 170 - Ophthalmic optics
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 30-Aug-2017
• Ref Project: SIST EN ISO 8980-2:2004 - Ophthalmic optics - Uncut finished spectacle lenses - Part 2: Specifications for progressive power lenses (ISO 8980-2:2004)

Relations

• Replaces: EN ISO 8980-2:1997 - Ophthalmic optics - Uncut finished spectacle lenses - Part 2: Specifications for progressive power lenses (ISO 8980-2:1996)
• Effective Date: 22-Dec-2008
• Replaced By: EN ISO 8980-2:2017 - Ophthalmic optics - Uncut finished spectacle lenses - Part 2: Specifications for power-variation lenses (ISO 8980-2:2017)
• Effective Date: 18-Dec-2013
• Corrected By: EN ISO 8980-2:2004/AC:2006 - Ophthalmic optics - Uncut finished spectacle lenses - Part 2: Specifications for progressive power lenses (ISO 8980-2:2004/Cor.1:2006)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2004
2þHVQDRSWLND1HEUXãHQD]JODMHQDVWHNODRþDOGHO6SHFLILNDFLMH]D
SURJUHVLYQDVWHNOD,62
Ophthalmic optics - Uncut finished spectacle lenses - Part 2: Specifications for
progressive power lenses (ISO 8980-2:2004)
Augenoptik - Rohkantige fertige Brillengläser - Teil 2: Anforderungen an Gleitsicht-
Brillengläser (ISO 8980-2:2004)
Optique ophtalmique - Verres de lunettes finis non détourés - Partie 2: Spécifications
pour les verres progressifs (ISO 8980-2:2004)
Ta slovenski standard je istoveten z: EN ISO 8980-2:2004
ICS:
11.040.70 Oftalmološka oprema Ophthalmic equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 8980-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2004
ICS 11.040.70 Supersedes EN ISO 8980-2:1997
English version
Ophthalmic optics - Uncut finished spectacle lenses - Part 2:
Specifications for progressive power lenses (ISO 8980-2:2004)
Optique ophtalmique - Verres de lunettes finis non Augenoptik - Rohkantige fertige Brillengläser - Teil 2:
détourés - Partie 2: Spécifications pour les verres Anforderungen an Gleitsicht-Brillengläser (ISO 8980-
progressifs (ISO 8980-2:2004) 2:2004)
This European Standard was approved by CEN on 9 January 2004.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of 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, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8980-2:2004 E
worldwide for CEN national Members.

Foreword
This document (EN ISO 8980-2:2004) 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 publication of
an identical text or by endorsement, at the latest by August 2004, and conflicting national
standards shall be withdrawn at the latest by August 2004.
This document supersedes EN ISO 8980-2:1997.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following 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, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 8980-2:2004 has been approved by CEN as EN ISO 8980-2:2004 without any
modifications.
NOTE Normative references to International Standards are listed in annex ZA (normative).
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated
by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 7944 1998 Optics and optical instruments - EN ISO 7944 1998
Reference wavelengths
ISO 8429 1986 Optics and optical instruments - EN ISO 8429 1996
Ophthalmology - Graduated dial scale
ISO 8598 1996 Optics and optical instruments - EN ISO 8598 1998
Focimeters
ISO 13666 1998 Ophthalmic optics - Spectacles lenses EN ISO 13666 1998
- Vocabulary
INTERNATIONAL ISO
STANDARD 8980-2
Second edition
2004-02-01
Ophthalmic optics — Uncut finished
spectacle lenses —
Part 2:
Specifications for progressive power
lenses
Optique ophtalmique — Verres de lunettes finis non détourés —
Partie 2: Spécifications pour les verres progressifs

Reference number
ISO 8980-2:2004(E)
©
ISO 2004
ISO 8980-2:2004(E)
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ii © ISO 2004 – All rights reserved

ISO 8980-2:2004(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 1
4 Classification. 2
5 Requirements . 2
6 Test methods. 5
7 Marking. 6
8 Identification. 7
9 Reference to this part of ISO 8980 . 7
Annex A (informative) Material and surface quality. 8

ISO 8980-2:2004(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 8980-2 was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee SC 7,
Ophtalmic optics and instruments.
This second edition cancels and replaces the first edition (ISO 8980-2:1996), 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
 Part 3: Transmittance specifications and test methods
 Part 4: Specifications and test methods for anti-reflective coatings
 Part 5: Minimum requirements for spectacle lenses claimed to be abrasion-resistant
iv © ISO 2004 – All rights reserved

INTERNATIONAL STANDARD ISO 8980-2:2004(E)

Ophthalmic optics — Uncut finished spectacle lenses —
Part 2:
Specifications for progressive power lenses
1 Scope
This part of ISO 8980 specifies requirements for the optical and geometrical properties for uncut finished
progressive spectacle lenses.
2 Normative references
The following referenced 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 7944, Optics and optical instruments — Reference wavelengths
ISO 8429, Optics and optical instruments — Ophthalmology — Graduated dial scale
ISO 8598, Optics and optical instruments — Focimeters
ISO 13666, Ophthalmic optics — Spectacle lenses — Vocabulary
ISO 14889:2003, Ophthalmic optics — Spectacle lenses — Fundamental requirements for uncut finished
lenses
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 13666 as well as the following apply.
3.1
focimeter, focal point on axis
FOA focimeter
focimeter in which the focal point of the focimeter remains on the axis of the focimeter when the lens under
test is measured at a point of the lens where prism is not zero
See Figure 1.
NOTE Examples of this design include all manual focusing focimeters and some automatic focimeters.
3.2
focimeter, infinite on axis
IOA focimeter
focimeter in which the collimated beam coincides with the focimeter axis and the focal point of the focimeter
goes off the axis of the focimeter when the lens under test is measured at a point of the lens where the prism
is not zero
ISO 8980-2:2004(E)
See Figure 2.
NOTE Some automatic focimeters use this design.

Key Key
1 focimeter's optical axis 1 focimeter's optical axis
2 lens 2 lens
3 focimeter lens support 3 focimeter lens support
4 focal point on the optical axis 4 infinite on the optical axis
Figure 1 — FOA Focimeter Figure 2 — IOA Focimeter
4 Classification
Finished lenses are classified as follows:
a) single-vision finished lenses;
b) multifocal finished lenses;
c) progressive power finished lenses.
5 Requirements
5.1 General
The tolerances shall apply at a temperature of 23 °C ± 5 °C.
2 © ISO 2004 – All rights reserved

ISO 8980-2:2004(E)
5.2 Optical requirements
5.2.1 General
The optical tolerances shall apply at the reference points of the lens at one of the reference wavelengths
specified in ISO 7944.
The as-worn position can result in the apparent power to the eye being different from that determined as a
result of the focimeter measurement.
If the manufacturer has applied corrections to compensate for the as-worn position, then the tolerances shall
apply to the corrected value and this corrected value shall be stated by the manufacturer on the package or in
an accompanying document (see 8.1).
The measured addition power is principally influenced by the finished lens form and power. In particular cases,
e.g. oblique cylinders or high minus powers, the deviation of the measured addition power of finished
progressive lenses can exceed the above mentioned tolerances. The manufacturer shall submit corrected
values on request (see 8.1).
5.2.2 Tolerances on t
...