ISO 21987:2017 specifies requirements and test methods for mounted spectacle lenses relative to the prescription order.
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Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
5.1 Reference temperature
5.2 Lenses used in manufacturing complete spectacles
5.3 Optical requirements
5.4 Requirements for thickness
5.5 Requirements for positioning
5.6 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 addition power or variation power
6.5 Verification method for position and tilt
6.6 Verification method for prism imbalance (relative prism error) for mounted single-vision lenses (excluding position-specific single-vision lenses) and multifocal lenses
6.7 Verification method for planes of transmission of polarizing lenses
6.8 Inspection method for material and surface quality
7 Marking for position-specific single-vision lenses and power-variation lenses
7.1 Permanent marking
7.2 Optional non-permanent marking
8 Recommendations on mounting
9 Identification
10 Reference to this document
Annex A Material and surface quality (informative)
Annex B Recommendations on mounting (informative)
Annex C Alternative method for measuring prism imbalance (relative prism error) for mounted single-vision lenses (excluding position-specific single-vision lenses) and multifocal lenses (informative)
5.2 Lenses used in manufacturing complete spectacles
5.3 Optical requirements
5.4 Requirements for thickness
5.5 Requirements for positioning
5.6 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 addition power or variation power
6.5 Verification method for position and tilt
6.6 Verification method for prism imbalance (relative prism error) for mounted single-vision lenses (excluding position-specific single-vision lenses) and multifocal lenses
6.7 Verification method for planes of transmission of polarizing lenses
6.8 Inspection method for material and surface quality
7 Marking for position-specific single-vision lenses and power-variation lenses
7.1 Permanent marking
7.2 Optional non-permanent marking
8 Recommendations on mounting
9 Identification
10 Reference to this document
Annex A Material and surface quality (informative)
Annex B Recommendations on mounting (informative)
Annex C Alternative method for measuring prism imbalance (relative prism error) for mounted single-vision lenses (excluding position-specific single-vision lenses) and multifocal lenses (informative)
ISO 13666:2012 Ophthalmic optics -- Spectacle lenses -- Vocabulary
ISO 14889:2013 Ophthalmic optics -- Spectacle lenses -- Fundamental requirements for uncut finished lenses
ISO 7944:1998 Optics and optical instruments -- Reference wavelengths
ISO 13666:2012 Ophthalmic optics -- Spectacle lenses -- Vocabulary
ISO 14889:2013 Ophthalmic optics -- Spectacle lenses -- Fundamental requirements for uncut finished lenses
ISO 7944:1998 Optics and optical instruments -- Reference wavelengths
ISO 8429:1986 Optics and optical instruments -- Ophthalmology -- Graduated dial scale
ISO 8598-1:2014 Optics and optical instruments -- Focimeters -- Part 1: General purpose instruments
ISO 8624:2011 Ophthalmic optics -- Spectacle frames -- Measuring system and terminology
ISO 8980-1:2004 Ophthalmic optics -- Uncut finished spectacle lenses -- Part 1: Specifications for single-vision and multifocal lenses
ISO 8980-2:2004 Ophthalmic optics -- Uncut finished spectacle lenses -- Part 2: Specifications for progressive power lenses