A new method to measure the optical defocus of a passive imaging system (ODPIS) is proposed.
提出了一种测量被动成像系统光学散焦的新方法。
This, combined with the information provided by the studies described above, emphasizes the role of optical defocus in inducing refractive error change.
结合前面讲到的，这突出了光学离焦在引起屈光不正病因中的重要作用。
The temperature has more influence on the optical system based on the analysis of the various factors effect on the defocus .
本文通过对影响离焦的各种因素的分析可知温度的变化对光学系统的影响最大。
Estimate the wavefront error of the whole optical system, and select a proper defocus length to improve the wavefront error, and then check the system's aberration after defocus.
对测试仪的光学系统的波像差进行了估算，选择了合适的离焦量来补偿波像差，并对系统离焦后的像差进行了验算。
It can be used to optimize the all optical switch design for different materials (self focus and defocus), nonlinear indices and wavelengths.
此设计方法可以对不同的材料(自聚焦、自散焦)、不同的非线性折射率和波长等进行波导全光开关优化设计。
The author pointed out that purifying medium is essential to prevent from the breakdown due to powerful intensity, defocus and other nonlinear optical effects in the process of SBS.
文章指出纯化s BS液体介质对于克服SBS过程中出现的光致破坏作用，自散焦等非线性效应是关键。
Laser direct writing system is the key equipment for fabrication of optical diffractive elements, and the defocus detection technique is the important sub-tech in it.
激光直写机是制作衍射光学元件的关键设备，离焦检测技术是其中的重要单元技术之一。
When biological cells or tissue thick specimens are imaged by bio-optical microscopy, image resolution decreased significantly due to the impact of diffraction and defocus.
生物光学显微镜对生物细胞(组织)厚样本成像时，由于受衍射和散焦成份的共同影响，成像分辨率明显下降。
When biological cells or tissue thick specimens are imaged by bio-optical microscopy, image resolution decreased significantly due to the impact of diffraction and defocus.
生物光学显微镜对生物细胞(组织)厚样本成像时，由于受衍射和散焦成份的共同影响，成像分辨率明显下降。
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