I.S. EN ISO 8980-4:2007
Current
The latest, up-to-date edition.
OPHTHALMIC OPTICS - UNCUT FINISHED SPECTACLE LENSES - PART 4: SPECIFICATIONS AND TEST METHODS FOR ANTI-REFLECTIVE COATINGS
Hardcopy , PDF
English
01-01-2007
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 General requirements
4.2 Luminous and mean reflectances
4.3 Usable diameter of coated area
4.4 Durability
5 Testing
5.1 General
5.2 Method of determination of reflectance
5.3 Determination of spectral reflectance values
5.4 Determination of luminous reflectance
5.5 Determination of mean reflectance
5.6 Determination of durability
6 Information to be made available on request
7 Reference to this part of ISO 8980
Annex A (informative) Significance of rho[V] and rho[M] in
the description of anti-reflective coated lenses
Annex B (normative) Environmental sequence
Annex C (normative) Rubbing sequence procedure
Annex D (normative) Evaluation conditions
Annex E (informative) Examples of lenses passing and
failing the visual evaluation
Annex F (informative) Examples of environmental sequence
Annex G (informative) Example of a rubbing tool and components
Bibliography
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