Length of normal 法线的长

lens abrosive and polishing material 打磨镜片原料

lens cleaner 镜布

lens demisting cloths and solutions 镜片除雾喷剂和清洁布

lens diameter range from 5mm to 280mm 镜片直径在5mm到280mm之间

lens glass optical lenses 玻璃镜片

lens gringding and polishing filtration systems 镜片研磨及其抛光过滤系统

Lens paper 擦镜纸

Lens tube :binocular 450 inclined tube with 55~75mm distance between pupils 镜筒：平移式双目450，斜镜筒，瞳距55~75mm

Lens-barrel 镜筒

Lens-mount 透镜框架的

Lensed 有透镜的

Lensless 无透镜的

lensmeter 焦度计

Lenticular lenses Optical Coherence Tomographer

Light sensitive 光敏的，感光的

Light wave 光波

Light-projector 发光的

Light-reflecting 反光的

Light-tight 遮光的

Lightproof 遮光的

Matte Black无光泽的黑色 

measurement instrument for optical elements and systems 关学用品及系统之测量仪器

memory optical 记忆光学

Metal Eyeglasses 金属眼镜

metal sunglasses 金属太阳镜

minus lenses 负透镜

mold for frames 镜片磨具

Monocular vertical tube 单目直镜筒

multi-coated &complete protection 全防护眼镜

myopia 近视

myopia control prossive 近视控制镜片

name brand 名牌