DIFFRACTION LIMITED (RAYLEIGH CRITERION).
衍射极限(瑞利判据)。
The obvious question becomes: is this diffraction limited or not?
现在问题变成：这个是不是衍射极限的作用？
This is an excellent figure, not that far from diffraction limited.
这是一个极不错的数字，还没有到衍射的极限。
So how much surface deviation can we tolerate before our optic is no longer diffraction limited?
那么多大的镜面误差是是我们能够容忍的呢？
This in turn leads up to asking the question of exactly how large is the diffraction limited field of view.
反过来，又引出一个新的问题，衍射极限的视角到底有多大？
When the system close -loop controlling is realized for lower frequency perturbation, the approximate diffraction limited line spread function can again be achieved on the image plane.
对于低频扰动，当系统实现闭环控制后，像面上线扩散函数已接近衍射极限。
A near diffraction limited beam was produced from the amplifier with quasi-single mode output... the results shows that the high pulse energy fiber laser has advantage of simple all fiber structure.
输出的光束质量较好，为准单模输出。该光纤放大器输出脉冲能量高，具有全光纤化、结构简单的特点。
The results of the experiment indicated that the set up time of the diffraction limited mode in the resonator is influenced by magnification, cavity length and the gain saturation effect of the laser.
表明了具有衍射极限的模式建立时间受放大率、腔长以及饱和效应的影响。
In the a high frame rate (HFR) ultrasonic imaging system, the weighting process by limited diffraction beams on echo signal takes the most of the calculation time for constructing an image.
在高帧率超声成像算法中，对回波信号进行有限衍射波束加权处理占用了成像中大部分计算时间。
Conclusion that result of diffraction of light is rectilinear propagation in limited condition is demonstrated from wave theory.
从波动理论出发，证明极限情况下光的衍射结果就是光的直线传播。
Limited by diffraction effect, the size of focused IR spot is usually larger than the pixel pitch of FPAs, hence the crosstalk testing is quite difficult.
受衍射效应的限制，聚焦红外光斑的尺寸往往大于焦平面阵列像素尺寸，串音测量遇到了极大困难。
It is shown that near diffraction-limited beam qualities could be achieved with optimized off-axis hard-edge unstable resonators.
结果表明：利用优化的离轴硬边非稳腔可以得到近衍射极限的输出。
The resolution of far-field microscopy is limited by the diffraction limit, while near-field microscopy lacks the sectional function to image 3D pictures.
远场光学显微镜受衍射极限分辨率的限制，而近场光学显微镜南于缺乏层析能力，则无法实现超分辨的三维成像。
A general diffraction formula for circular apertures is derived. This formula is not limited by the aperture radius and the distance from the screen and can be used as a theory of near field optics.
推导了圆孔衍射公式，该公式不受孔径大小和到屏距离的限制，可以作为近场光学的理论。
Laser transmitting wavefront is near diffraction-limited in space laser communication. Wavefront measurement is the basis of system adjustment and testing.
空间激光通信中发射波面质量接近衍射极限，测量波面是调整和检验发射系统的依据。
The image quality evaluation for diffraction-limited optical synthetic aperture imaging system is analyzed with two-point resolution and optical transmission function (OTF).
本文就照相物镜的像质评价的几种方法，做了比较；设计了测量照相物镜光学传递函数的光路系统并进行实际测量。
However, resolution of a traditional wide-field optical microscopy is limited to about 230 nm laterally and 1000 nm axially, due to the diffraction-limit of light.
但由于衍射极限的存在，使传统的宽场光学显微镜横向和纵向的分辨率分别仅约为230nm和1000 nm。
However, resolution of a traditional wide-field optical microscopy is limited to about 230 nm laterally and 1000 nm axially, due to the diffraction-limit of light.
但由于衍射极限的存在，使传统的宽场光学显微镜横向和纵向的分辨率分别仅约为230nm和1000 nm。
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