NA Numerical Aperture

large core high numerical aperture fiber

大芯径大数值孔径光纤

Research on Craft of Large Numerical Aperture Multiple-Composition Glass Flexible Fiber;

大数值孔径多组分玻璃柔性光纤工艺的研究

A new method for measurement of numerical aperture of photonic crystal fibers

光子晶体光纤数值孔径测试的一种新方法

Spatial Shaping of Femtosecond Laser Pulse in Large-core Optical Fiber

大芯径光纤整形飞秒激光脉冲空间分布的研究

Measurement of spectrum loss of large-core optical fiber

大芯径石英阶跃光纤光谱损耗测量研究

The simulation of photo scanning tunnel microscopy image with a metal nano-rod afflicted to an aperture fiber probe

带纳米金属棒PSTM孔径光纤探针成像的数值模拟

ultra-rapid lens

甚大光强[相对]孔径物镜

Transmission attenuation of laser beams with different incident angles in large-core SI-PDF optical fibers

不同入射角激光束在大芯径SI-PDF光纤中的传输损耗

Time response of large-core step-index fiber transmission system with scintillator illumination

闪烁光激励下大芯径阶跃光纤系统的时间响应研究

Study on drill bit for large diameter core drilling of deep hole in hard rock

硬岩深孔大口径取芯钻进的钻头研究

The relation is discussed between the shift of the point of maximum intensity on axis from the waist of focused Gaussian beam and the radius of the diffracted aperture, and the parameters of the Gaussian beam.

讨论了轴上点光强最大值相对会聚高斯光束束腰的偏移量同衍射孔径及高斯光束参数的关系。

Hence the value of high numerical aperture for such specimens.

因此对这标本需采用大数值孔径的物镜。

Construction Method of Coring for Pore Forming Based on Water Drilling of Super-diameter Rock Pile

超大直径岩石桩水钻取芯成孔的施工技术

Effects of Porosity on Gas Permeability and Maximum Pore Size of Fiber Felts

孔隙度对纤维毡透气性能和最大孔径的影响

Study on the sub-aperture stitching interferometry for large plano-optics

大口径光学平面的子孔径拼接检验研究

Performance Analysis of Large-Aperture Receiving and Selection of Aperture Size in Atmospheric Optical Communications

大气光通信中大孔径接收性能分析与孔径尺寸选择

overall f - number

总光圈大小, 总孔径焦距比

Video Lens Design for CCD Camera of Wide-angle Large Aperture

广角大孔径CCD摄像镜头光学设计