查询词典 Fresnel diffraction

Underneath the path of Fresnel lens focuses, obtains a similar V curve, uses this curve to make the array-like design, causes the small DC deceleration motor to make the most effective application.

利用透镜下方聚焦的轨迹，得到一类似V型的曲线，利用此曲线做成阵列式的设计，使小型直流减速马达做最有效率的应用。

The Fermat"s principle, Fresnel"s coefficients, Goos-Hanchen effect and Brewster angle at an interface between a PIM and a NIM were studied respectively. When the NIMs are introduced, the two traditional descriptions of Fermats principle are not consistent with each other and the least time principle do not hold true anymore.

随着负折射率介质的引入通过对费马原理的两种传统描述形式的研究可以发现，正—负折射率介质平界面处的最短时间原理已不成立，并进一步验证了使用光程表达的费马原理才是严格的正确的理论。

The system based on Fresnel zone plate scanning holography is simple and compact.

依据该技术原理设计了实验系统，系统结构简单紧凑，具有三维物体层析成像功能。

The Fresnel zone plate scanning holography is applied in the imaging through highly scattering media .

将菲涅耳波带板扫描全息术用于高散射介质成像技术中。

The scanning hologram of an object is the convolution of the transmittance of the object with the intensity distribution of the Fresnel zone plate and the reconstruction of the hologram is obtained by correlation operation.

该技术通过将物体的光强分布函数与菲涅耳波带板的光强分布函数进行卷积运算来得到物体的扫描全息图，通过相关解卷积的方法来进行扫描全息图的数字重建。

On the other hand, the use of Fresnel lenses has been the main stream for optical concentrators because of its flexibility.

在其中折射式的菲涅洱透镜是被广为使用的一种聚光镜。

A new annotation is referred to explain the Fresnel's formulation, then some formulations that are about the relationship of the velocity of light in medium and the molecular volume is proposed.

对菲涅尔公式作新的诠释，根据新诠释提出了光媒质中分子体积之和与光速的关系式。

It can be inferred that the focus-variable Fresnel zone lens can be made by changing the index of refraction of material.

据此分析，通过改变透镜材料的折射率，可以制作变焦的菲涅耳波带透镜。

In 1818 Fresnel entered a competition sponsored by French Academy.

1818年菲涅耳参加了法国科学院主办的一次竞赛。

However, Fresnel lens is not a perfect lens and can induce several artifacts for the projected image.

但是，Fresnel lens毕竞不是理想的透镜，因而会造成投影影像的缺陷，这些缺陷被称为鬼影。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。