(2)相位板(annular phaseplate):物镜中的后焦面加了相位板,其上为一暗环。相板上涂有氟化镁,可将直射光或衍射光的相位推迟 1/4λ,从而造成振幅叠加或抵消,引起正...
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The results of imaging simulations for the cemented doublet system with and without pupil phase mask are compared and analyzed.
并对加相位板和未加相位板得到的图像进行了比较分析。
参考来源 - 波前编码技术理论及其应用The presented method is quite different to ordinary random phase encryption method, and the random phase mask is not needed.
该加密方法显著区别于常用的随机相位加密方法,不再需要制作随机相位板。
参考来源 - 利用数字全息实现信息加密与相位物体检测·2,447,543篇论文数据，部分数据来源于NoteExpress
为设计合理的相位板提供了依据。 同时也为光束诊断系统提供了一种测量相位的方法。
This provides the database for designing appropriate phase plate, and also gives a phase measurement method for beam diagnose system.
针对激光系统对光束匀滑的需求，设计了高斯型连续相位板，并对其远场特性进行了研究。
According to the requirement of beam smoothing in laser systems, the continuous phase plate with Gaussian distribution is designed.
这些样品表面具有连续平滑的起伏轮廓，符合粗糙表面散射研究的理论模型，也可用作相位板。
These surfaces have a smoothly modulated profile which is amenable to the theoretical model of rough surface scattering. These specimens can also be used as phase screens.
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