The objective of this Standard is to specify requirements and verification methods for the optical and geometrical properties for uncut finished power-variation lenses.
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
