AS/NZS ISO 13666:2015
Ophthalmic optics - Spectacle lenses - Vocabulary
This standard defines basic terms relating to ophthalmic optics. Identical to and reproduced from ISO 13666:2012.
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AS/NZS ISO 13666:2015
COPYRIGHT
PREFACE
CONTENTS
1 Scope
2 Normative references
3 General considerations
4 Terms relating to basic optics
5 Basic terms relating to spectaclelenses and fitting purposes
5.7 Meridian
5.19 Dimensions of lens blanks or lenses
6 Terms relating to spectacle lensmaterials
6.3 Organic hard resin
7 Terms relating to lens surfaces
8 Terms relating to spectacle lenses
8.1 Classification according to function
8.2 Classification according to lens form
8.3 Classification according to type
8.4 Classification according to state ofmanufacture
8.5 Measurement of spectacle lensdioptric properties
9 Terms relating to focal properties
9.7 Vertex power
10 Terms relating to prismaticproperties
11 Terms relating to spherical-powerlenses
11.4 Base curve
12 Terms relating to astigmatic-powerlenses
13 Terms relating to lenticular lenses
14 Terms relating to multifocal,progressive-power and degressivepowerlenses
14.1 General descriptive terms
14.2 Terms relating to optical centrationand focal properties
15 Terms relating to transmission,reflection and coatings
15.3 UV transmittance
15.6 IR transmittance
16 Lens coatings
17 Spectacle frame terms needed forspectacle lens dispensing
Annex A - Spectral weighting functions andspectral distributions
Bibliography
Tables
Table A.1 — Spectral weighting functions for the calculation of UV-transmittanceand blue-light transmittance
Table A.2 — Product of the spectral distribution of radiation of signal lights and standard illuminantD65, as specified in ISO 11664-2, and the spectral luminous efficiency function of the average humaneye for daylight vision, as specified in ISO 11664-1
Table A.3 — Spectral distribution of solar spectral irradiance in the infrared spectrum
Figures
Figure 1 — Illustration of “as worn” pantoscopic angle
Figure 2 — Terms relating to the fitting point
Figure 3 — Illustration of terms for polarizing lenses
Figure 4 — FOA focimeter
Figure 5 — IOA focimeter
Figure 6 — Illustration of off-axis power (FOA focimeter)
Figure 7 — Illustration of off-axis power (IOA focimeter)
Figure 8 — Multifocal dimensions mainly applicable to semi-finished lens blanks
Figure 9 — Principal multifocal dimensions required before edging, applicable to edged lenses
Figure 10 — Vertical segment displacement of a multifocal lens
Figure 11 — Schematic representation of the plane of the spectacle frontand the planes of the lens shapes of a frame (view from above)
Figure 12 — Distances in the plane of the spectacle front and the plane of the lens shape (1 of 2)
Figure 12 — Distances in the plane of the spectacle front and the plane of the lens shape (2 of 2)
Alphabetical index
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Related Information
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AS/NZS ISO 13666:2015
COPYRIGHT
PREFACE
CONTENTS
1 Scope
2 Normative references
3 General considerations
4 Terms relating to basic optics
5 Basic terms relating to spectaclelenses and fitting purposes
5.7 Meridian
5.19 Dimensions of lens blanks or lenses
6 Terms relating to spectacle lensmaterials
6.3 Organic hard resin
7 Terms relating to lens surfaces
8 Terms relating to spectacle lenses
8.1 Classification according to function
8.2 Classification according to lens form
8.3 Classification according to type
8.4 Classification according to state ofmanufacture
8.5 Measurement of spectacle lensdioptric properties
9 Terms relating to focal properties
9.7 Vertex power
10 Terms relating to prismaticproperties
11 Terms relating to spherical-powerlenses
11.4 Base curve
12 Terms relating to astigmatic-powerlenses
13 Terms relating to lenticular lenses
14 Terms relating to multifocal,progressive-power and degressivepowerlenses
14.1 General descriptive terms
14.2 Terms relating to optical centrationand focal properties
15 Terms relating to transmission,reflection and coatings
15.3 UV transmittance
15.6 IR transmittance
16 Lens coatings
17 Spectacle frame terms needed forspectacle lens dispensing
Annex A - Spectral weighting functions andspectral distributions
Bibliography
Tables
Table A.1 — Spectral weighting functions for the calculation of UV-transmittanceand blue-light transmittance
Table A.2 — Product of the spectral distribution of radiation of signal lights and standard illuminantD65, as specified in ISO 11664-2, and the spectral luminous efficiency function of the average humaneye for daylight vision, as specified in ISO 11664-1
Table A.3 — Spectral distribution of solar spectral irradiance in the infrared spectrum
Figures
Figure 1 — Illustration of “as worn” pantoscopic angle
Figure 2 — Terms relating to the fitting point
Figure 3 — Illustration of terms for polarizing lenses
Figure 4 — FOA focimeter
Figure 5 — IOA focimeter
Figure 6 — Illustration of off-axis power (FOA focimeter)
Figure 7 — Illustration of off-axis power (IOA focimeter)
Figure 8 — Multifocal dimensions mainly applicable to semi-finished lens blanks
Figure 9 — Principal multifocal dimensions required before edging, applicable to edged lenses
Figure 10 — Vertical segment displacement of a multifocal lens
Figure 11 — Schematic representation of the plane of the spectacle frontand the planes of the lens shapes of a frame (view from above)
Figure 12 — Distances in the plane of the spectacle front and the plane of the lens shape (1 of 2)
Figure 12 — Distances in the plane of the spectacle front and the plane of the lens shape (2 of 2)
Alphabetical index
AS/NZS ISO 13666:2015
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.