Adopts ISO 10322-1:2016, which specifies requirements for the optical and geometrical properties of all semi-finished single-vision and multifocal spectacle lens blanks.
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
5.1 General
5.2 Optical requirements for the finished surface
5.2.1 General
5.2.2 Tolerances on the surface power of single-vision and multifocal lens blanks
5.2.3 Uniformity of the surface power of lens blanks with nominally spherical surfaces
5.2.4 Tolerances on the intended surface cylindrical power
5.2.5 Tolerances on the surface addition power for multifocal lens blanks
5.3 Geometrical tolerances
5.3.1 Tolerances on the size
5.3.2 Tolerances on thickness
5.3.2.1 Centre thickness
5.3.2.2 Edge thickness
5.3.3 Segment tolerances for multifocal lens blanks
5.3.3.1 Dimensions
5.3.3.2 Position
6 Test methods
6.1 General
6.2 Determination of surface power
6.3 Addition power measurement
6.3.1 General
6.3.2 Measurement
6.4 Segment dimensions and position measurement method
6.5 Inspection method for material and surface quality
