GB/T 27995.2-2025半成品镜片毛坯　第2部分：渐变焦.pdf

ICS11.040.70

CCSY89

中华人民共和国国家标准

GB/T27995.2—2025

代替GB27995.2—2011

半成品镜片毛坯

第2部分：渐变焦

Semi-finishedspectaclelensblanks—Part2：Power⁃variation

（ISO10322⁃2：2016，Ophthalmicoptics—Semi⁃finishedspectaclelensblanks—

Part2：Specificationsforprogressive⁃poweranddegressive⁃powerlensblanks，

MOD）

2025⁃02⁃28发布2026⁃03⁃01实施

国家市场监督管理总局

发布

国家标准化管理委员会

GB/T27995.2—2025

目次

前言··························································································································Ⅲ

引言··························································································································Ⅳ

1范围·······················································································································1

2规范性引用文件········································································································1

3术语和定义··············································································································1

4分类·······················································································································1

5要求·······················································································································1

5.1已完成表面的光学要求·························································································1

5.2几何尺寸·······································································································