Standard
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AS/NZS 8980.1:2019
[Current]Ophthalmic optics — Uncut finished spectacle lenses, Part 1: Specifications for single-vision and multifocal lenses (ISO 8980-1:2017, MOD)
The objective of this Standard is to specify requirements and verification methods for the optical and geometrical properties for uncut finished single-vision and multifocal spectacle lenses.
Published: 22/03/2019
Pages: 11
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
5.2.3 Direction of the cylinder axis
5.2.4 Addition power for multifocal lenses
5.2.5 Prismatic power
5.2.6 Prism base setting
5.3 Geometrical requirements
5.3.1 Requirements for size and thickness
5.3.2 Requirements on segment dimensions for multifocal lenses
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
6.3.1 General
6.3.2 Single-vision lenses
6.3.3 Multifocal lenses
6.4 Verification method for prismatic power
6.4.1 General
6.4.2 Single-vision lenses (excluding position-specific single-vision lenses)
6.4.3 Position-specific single-vision lenses
6.4.4 Multifocal lenses
6.5 Verification method for addition power
6.5.1 General
6.5.2 Procedure
6.6 Verification method for segment size
6.7 Inspection method for material and surface quality
7 Marking requirements for single-vision lenses
7.1 Position-specific single-vision lenses
7.2 Polarizing lenses
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]
Optics and optical instruments - Focimeters - Part 1: General purpose instruments
[Current]
Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods
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