GB/T 13511.4-2025
ActiveAssembled spectacles—Part 4: Multifocal and power-variation near-vision spectacles
配装眼镜 第4部分：多焦和渐变焦老视成镜
Application Summary AI generated
This standard specifies technical requirements, test methods, and inspection rules for pre-assembled multifocal and progressive addition near-vision spectacles. It is applied in the Chinese optical industry for ready-made reading glasses designed for presbyopia correction, ensuring optical quality and safety for over-the-counter sale without individual prescription.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.