Focal distance of lens的意思|示意

Moreover, applying the matrix method in the close axis optics leads directly to the expression of the focal distance of magnetic lens if the matrix is transmitted by the lens.

此外，应用类似于近轴光学中的矩阵方法，山磁透镜传输矩阵，直接导出了该磁透镜的焦距的表达式。

The influences of pump energy, focal length and distance between fiber and lens on SBS reflectivity and waveform in multimode fiber are investigated theoretically and experimentally.

从理论和实验上研究了不同焦距下泵浦能量以及透镜与光纤间距对多模光纤中的SBS能量反射率和脉冲波形的影响。

One major problem the researchers had to overcome was the fact that the human eye, with its minimum focal distance of several centimetres, cannot resolve objects on a contact lens.

研究人员必须解决的一个重要的 问题是，人眼的最小焦距是几厘米，无法分辨出隐形眼镜上显示的物体。

In measuring the focal distance of lens, the experimental accuracy is often affected by the poor quality in the formation of images.

在测量透镜焦距时，往往由于成像质量差而影响实验的精度。

An experimental investigation of the combination of a long focal distance Bragg-Fresnel lens with a bimorph mirror is described.

描述了对长焦距布拉格-菲涅耳透镜与可变曲率半径反射镜组合所做的实验研究。

Abstract: the rules of ganssian light beams extended by lens are disscussed firstey and the relation between the optimum waist extended and focal distance of the lens are found out.

文摘：首次讨论了用透镜来扩展高斯光束的一般规律，找出了最佳扩展束腰与透镜焦距的关系。