area grating covering 格栅保护层
Active grating area 有效面积
grating area 炉篦面积
Large area transmission grating 大面积透射光栅
large-mode-area fiber grating 大模场光纤光栅
Area calculation of grating 钢格板的面积计算
The technology to make a large area master with the grating of optically variable device (OVD) is role in holographic image embossing.
制作具有光变图像（OVD）光栅条纹的大面积全息原版，是激光图像无油墨印刷的核心技术之一。
A bar code is made in the random grating lattice (diffuse reflection) area or to use together with the laser holographic anti-counterfeiting label to realize comprehensive anti-counterfeiting.
在随机光栅点阵(漫反射)区域上制作条形码或与激光全息防伪标识共同使用，可实现综合防伪。
Finally, some suggestions are made on how to raise the diffraction efficiency and enlarge the ruling area of the grating in terms of experiment.
最后探讨了如何提高衍射效率，控制闪耀波长及增大刻划面积等问题。
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