Ophthalmic optics — Uncut finished spectacle lenses — Part 4: Specifications and test methods for the properties of anti-reflective coatings and hydrophobic coatings

This document outlines the technical requirements and test procedures for evaluating anti-reflective and hydrophobic coatings on finished, uncut ophthalmic lenses. It establishes specific criteria for performance characteristics, ensuring that optical instruments maintain clarity and durability under various environmental conditions. The standard defines measurement methodologies applicable to coatings applied during manufacturing, covering aspects such as light transmission efficiency, resistance to scratching, and water repellency properties. Compliance with these specifications allows manufacturers to verify that their products meet rigorous quality benchmarks before distribution. The procedures described facilitate consistent assessment across different laboratories and production facilities, supporting global trade by providing a unified framework for technical evaluation. Focus remains strictly on the physical and optical attributes of the coatings rather than broader product applications. By adhering to these guidelines, industry professionals can ensure optimal functionality and safety of corrective eyewear components in clinical and everyday settings.