1) depth of focus
焦深
1.
This system uses a cubic phase element and digital image processing to increase the depth of focus in keeping the same illumination and resolution.
设计了一个光学/数字成像系统,该成像系统利用三次位相元件辅以数字图像处理技术,在保持系统光通量及分辨率不变的前提下,提高了光学系统焦深。
2.
The influence of quadrupole,annular and binary grating illumination on resolution and depth of focus have been investigated in sub micron i line exposure system.
主要就曝光能量，分辨力改善情况，焦深变化等与传统情况作了比较。
3.
A novel method for measuring dense-line depth of focus(DOF) of a lithographic projection system is proposed.
提出了一种检测光刻机投影物镜密集线焦深(DOF)的新技术。
2) focal depth
焦深
1.
Focal depth characteristics of hybrid refractive-diffractive optical element with long focal depth;
折-衍混合长焦深光学元件的焦深特性
2.
The effect of concentric zones phase plate on focal depth of hyperbolic-cosine-Gaussian beam;
同轴分区相位板对双曲余弦高斯光束的焦深调制效应
4) long focal depth
长焦深
1.
Design of the Binary Optical Element of Long Focal Depth and Small Spot;
利用二元光学技术实现小焦斑、长焦深的设计
2.
Study of Long Focal Depth Optical Elements Applied in the Diagnosis for Inertial Confinement Fusion Plasmas;
用于ICF激光等离子体诊断的长焦深光学元件研究
3.
The plates are used as the elements with long focal depth,whose two important parameters*#:the axial intensity distribution and the axial variation of the focused-central-spot size,are simulated and analyzed*#.
基于能量守恒原理 ,利用追迹法、计算机编码设计了用作长焦深元件的“孔雀眼”波带片。
5) depth from defocus
散焦深度
6) depth-of-field expanded
焦深扩展
1.
Research on depth-of-field expanded image blending algorithms and their implementation;
基于焦深扩展的图像融合算法研究及其实现
补充资料：焦深
depth of focus
焦深指物体的点在镜头后沿成像器轴线所测定能够获得较清晰成像的距离。
简单的说：镜头的像平面两边的清晰范围称为焦深。
焦深从像平面前开始，到达像平面时汇聚的光锥形成最小程度的弥散圈，然后在像平面背后发散光锥延伸到焦深开始时同样的直径上时而消失，它的深度很小只为一英寸的百分之几而已。因此焦深所提供的调焦宽容度很小。
与景深相互共轭的眼视网膜像位间的距离称为焦深。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条