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BS EN ISO 8980-3:2013

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Ophthalmic optics. Uncut finished spectacle lenses Transmittance specifications and test methods
Available format(s)

Hardcopy , PDF

Superseded date

13-07-2022

Language(s)

English

Published date

31-10-2013

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Classification
6 Requirements
7 Test methods
8 Identification
Annex A (normative) - Spectral data for calculating
        relative visual attenuation quotients for
        incandescent signal lights
Annex B (normative) - Calculation of solar UV
        transmittance values
Annex C (normative) - Cut-on filter for UV filtering
Annex D (informative) - Spectral data for calculating
        relative visual attenuation quotients for LED
        signal lights
Annex E (informative) - Spectral radiation risks
Annex F (informative) - Example of the calculation of luminous
        transmittance, tau[V]
Bibliography

Describes requirements for the transmittance properties of uncut finished spectacle lenses and mounted pairs, including attenuation of solar radiation.

This part of ISO8980 specifies requirements for the transmittance properties of uncut finished spectacle lenses and mounted pairs, including attenuation of solar radiation.

This part of ISO8980 is not applicable to

  • spectacle lenses having particular transmittance or absorption characteristics prescribed for medical reasons;

  • products where specific personal protective equipment transmittance standards apply;

  • products intended for direct observation of the sun, such as for solar-eclipse viewing.

NOTE Optical and geometric requirements for uncut finished spectacle lenses are specified in ISO8980-1 andISO8980-2, and for mounted lenses, in ISO21987.

Committee
CH/172/3
DevelopmentNote
Supersedes 95/563357 DC. (09/2003) Supersedes 11/30218545 DC. (10/2013) Supersedes BS 2738-9(1999). (07/2015)
DocumentType
Standard
Pages
40
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

BS 7394-2:2007 Complete spectacles Specification for prescription spectacles
07/30082138 DC : DRAFT FEB 2007 BS 7394-2 - COMPLETE SPECTACLES - PART 2: SPECIFICATION FOR PRESCRIPTION SPECTACLES

ISO 21987:2017 Ophthalmic optics — Mounted spectacle lenses
ISO 8980-1:2017 Ophthalmic optics — Uncut finished spectacle lenses — Part 1: Specifications for single-vision and multifocal lenses
ISO 13666:2012 Ophthalmic optics Spectacle lenses Vocabulary
ISO 14889:2013 Ophthalmic optics — Spectacle lenses — Fundamental requirements for uncut finished lenses
ISO 11664-1:2007 Colorimetry Part 1: CIE standard colorimetric observers
ISO 8980-2:2017 Ophthalmic optics — Uncut finished spectacle lenses — Part 2: Specifications for power-variation lenses
ISO 11664-2:2007 Colorimetry — Part 2: CIE standard illuminants

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