Standard
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AS/NZS 8980.2:2019
[Current]Ophthalmic optics — Uncut finished spectacle lenses, Part 2: Specifications for power-variation lenses (ISO 8980-2:2017, MOD)
The objective of this Standard is to specify requirements and verification methods for the optical and geometrical properties for uncut finished power-variation lenses.
Published: 22/03/2019
Pages: 9
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
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
A.1 Assessment
A.2 Test method
Appendix ZZ
ZZ.1 Scope
ZZ.2 Variations
Bibliography
Cited references in this standard
[Current]
Ophthalmic optics - Spectacle lenses - Fundamental requirements for uncut finished lenses
[Current]
Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods
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