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- effective numerical aperture 有效数值孔径
- 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。
- Transmission parameters such as numerical aperture and normalized frequency of the fabricated holey fibers have been measured and compared with theoretical values based on effective index method. 测量了拉制成的有孔光纤的数值孔径和归一化频率等传输参数，并基于有效折射率方法与理论值进行了比较。
- In the next generation of optical disk system,GaN laser and high numerical aperture(NA)objective lens are two key components. 对于下一代光盘系统而言,gan激光器和高数值孔径(NA)的物镜是关键组件。
- These ideas explain why high numerical aperture, apochromatic lenses can separate extremely small details in blue light. 这就是在使用大数值孔径复消色差物镜时用蓝光照明可获得超级分辨率的原因。
- The finite element method is a very effective numerical analysis method to extremely complex engineering structure. 摘要有限元法是分析复杂工程结构的一种非常有效的数值分析方法。
- Due to optical diffraction limits, the focal spot size is influenced by the incident wavelength and the numerical aperture of a lens. 摘要:由于光学绕射极限的限制，聚焦光点受到入射光波长及透镜数值孔镜的影响。
- The method of weighted residuals is a strongly effective numerical method of solving the problems on mechanics. 加权残数法是解决力学问题的一种行之有效的数值方法。
- This paper introduces the supplementary objective* design principle, the decision of numerical aperture and design example in zoom scereo microscope. 本文介绍了连续变倍体视显微镜附加大物镜的设计原理,数值孔径的确定以及设计实例。
- The method for analyzing the spatial resolution of confocal microscope is introduced.The importance of numerical aperture(NA)is pointed out. 介绍了显微镜空间分辨率的基本分析方法,并由此说明数值孔径NA的重要作用。
- The relation of transmittance versus irradiance and numerical aperture (NA) of optical systems is discussed in this paper. 讨论了光学系统透射比与辐照度、数值孔径之间的理论关系。
- Because of the elasticity in processing the boundary problem of complex area.FFM already become an effective numerical analysis method in engineering. 由于其在处理复杂区域边界问题的灵活性,有限元法已经成为一种非常有效的工程中的数值分析方法。
- This is achieved by a high numerical aperture (NA) lens axicon that utilizes spherical aberration to duplicate the performance of an axicon and to create an extended focal line. 该方法采用了高数值孔径的旋转三透镜，这种透镜利用球面透镜来复制旋转三棱镜的性能和产生一个延长焦线。
- Sets the target value for a remote talker's effect numeric or data parameter. 设置远程玩家数据声音的效果参数。
- This paper describes the UV proximity printing method to fabricate micro-optical elements, such as microlens array, micro-waveguides and high numerical aperture microlens. 本文的重点是介绍以近接曝光之光刻微影术进行微光学元件制作开发，具体元件如微透镜阵列、光波导、高数值孔径微透镜等。
- The porous medium in oil poolare simplified the undulating tube models, a mathematical mode is constructed from energyangle, effective numerical methods should be used. 根据真实多孔介质内部流道的收缩和扩张的特性,选取了具有相继收缩和扩张的周期过程,同时又具有几何上的简单性的波纹管模型。
- The results show that the ADRBEM with augmented items is an effective numerical method to solve analogous problem of non-isothermal phase change, which occurs in the c. 对铅-锡合金的相变问题,本文采用含扩展项的轴对称双倒易边界元方法计算了圆柱中界面沿轴向运动的非等温相变过程。
- Results showed that it was realizable by taking such measures as using high inner-clad numerical aperture, appropriate rare-earth doped double-clad fiber and decreasing transmission loss of sunlight. 计算结果表明，通过采用内包层数值孔径较大、掺杂适当稀土元素的双包层光纤及减小太阳光传输过程中的损耗等措施提高光纤激光器对太阳能的吸收效率，可以实现太阳能直接抽运光纤激光器。
- That's rather an effective use of color. 这种使用颜色的手法效果相当好。
- The optical department produced a lens with a numerical aperture of F/O=.68, through which a large circular graticule was projected onto a circular glass reflector screen 76 mm (3 in) in diameter. 光学部门制造了数值孔径F/O=.;68的镜头，通过这个镜头投射一个宽大的圆形分划到一个圆直径76毫米（3英寸）形的玻璃反射屏。
