85问答库 > l,74和1,67的近视眼镜怎么辨别?就是镜片的厚度1，74和1，67镜片怎么辨别

l,74和1,67的近视眼镜怎么辨别?就是镜片的厚度1，74和1，67镜片怎么辨别

2025-03-16 19:12:01
推荐回答（1个）
回答1：

原料分别是MR-7和MR-174，从厚度侧面看镜片底色，1.74的颜色比1.67的更蓝一些，1.74指的不是镜片厚度，而是透光材料的折射率，你可以理解成折射率越高，凹透镜镜片边缘越薄，凸透镜中心越薄

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