棱镜膜BEF(Brightness Enhancement Film)，或称棱镜片，是由3M公司发明的产品，并率先应用于液晶显示中，以提高显示屏的正面亮度。
三维工业测量系统是以全站仪及双微棱镜片测杆为基本手段而开发的一个测量系统。
TDR (Total station and Double mini prism survey Rod) system is a newly developed three dimensional industrial survey system using total station and mini prism as basic tools.
提出一种眼镜度数测量方法，利用位置探测器和3条光线实现对棱镜度、球镜度和散光度等镜片参数的测量。
A position detector and 3 beams of ray are used to measure the prismatic, spherical and astigmatic powers.
顶焦度计又称对光机、查片机，可用来测量球光镜镜度、散光镜镜度、棱镜镜度以及散光轴线和光学中心点等，是眼镜片冷加工中必不可少的检测仪器。
The lensometers is also called measural lens dioptre instrument, to measure spherical lens dioptre, cylindric lens dioptre and axis, prism dioptre, and lens optical center etc.
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