AS/NZS 8980.2:2019
Ophthalmic optics - Uncut finished spectacle lenses - Part 2: Specifications for power-variation lenses
Specifies requirements and verification methods for the optical and geometrical properties for uncut finished power-variation lenses. Adopted with national modifications from ISO 8980-2:2017.
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AS/NZS 8980.2:2019 Ophthalmic optics - Uncut finished spectacle lenses Specifications for power-variation lenses (ISO 8980-2:2017, MOD)
Preface
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
5.1 Reference temperature
5.2 Optical requirements
5.2.1 General
5.2.2 Back vertex power of power-variation lenses at the primary reference point
5.2.3 Direction of the cylinder axis
5.2.4 Variation power (including addition power)
5.2.5 Prismatic power
5.2.6 Prism base setting
5.3 Requirements for size and thickness
5.4 Orientation requirement for polarizing lenses
6 Verification methods
6.1 General
6.2 Verification method for back vertex power
6.3 Verification method for the direction of the cylinder axis
6.4 Verification method for prismatic power
6.5 Verification method for variation power (including addition power)
6.5.1 General
6.5.2 Procedure
6.6 Inspection method for material and surface quality
7 Marking
7.1 Permanent marking
7.2 Optional non-permanent marking
8 Identification and information
9 Reference to this document
Annex A (informative) Material and surface quality
Bibliography
Appendix ZZ (normative) Variations to ISO 8980‑2:2017 for Australia and New Zealand
Previous versions
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AS/NZS 8980.2:2019 Ophthalmic optics - Uncut finished spectacle lenses Specifications for power-variation lenses (ISO 8980-2:2017, MOD)
Preface
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
5.1 Reference temperature
5.2 Optical requirements
5.2.1 General
5.2.2 Back vertex power of power-variation lenses at the primary reference point
5.2.3 Direction of the cylinder axis
5.2.4 Variation power (including addition power)
5.2.5 Prismatic power
5.2.6 Prism base setting
5.3 Requirements for size and thickness
5.4 Orientation requirement for polarizing lenses
6 Verification methods
6.1 General
6.2 Verification method for back vertex power
6.3 Verification method for the direction of the cylinder axis
6.4 Verification method for prismatic power
6.5 Verification method for variation power (including addition power)
6.5.1 General
6.5.2 Procedure
6.6 Inspection method for material and surface quality
7 Marking
7.1 Permanent marking
7.2 Optional non-permanent marking
8 Identification and information
9 Reference to this document
Annex A (informative) Material and surface quality
Bibliography
Appendix ZZ (normative) Variations to ISO 8980‑2:2017 for Australia and New Zealand
Previous versions
AS/NZS 8980.2:2019
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.