GB 27995.1-2011
AbolishedSemi-finished spectacle lens blanks - Part 1: Specifications for single-vision and multifocal lens blanks
半成品眼镜片毛坯 第1部分：单光和多焦点眼镜片毛坯规范
Application Summary AI generated
GB 27995.1-2011 specifies dimensional, optical, and material requirements for semi-finished single-vision and multifocal spectacle lens blanks. It is applied in the manufacturing and quality inspection of uncut lens blanks used by optical laboratories and eyewear producers to ensure consistent base curves, thickness tolerances, and refractive properties before final surfacing.
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