查询词典 Fresnel lens

This article discussed the diamond cutting machining technology, and some Exploration, analysis and discussion are made on machining parameters used in diamond turning process of Fresnel lens and its impact on the element performance.

本文重点阐述了金刚石车削加工技术，并对菲涅尔透镜金刚石车削加工技术中的有关工艺参数及其对工作性能的影响进行了探索、分析和讨论。

Use of the functions of the Pro/ NC machining ,the article discussed the Fresnel lens NC machine process. And automatically generate the processing procedures.

利用Pro／NC的数控加工功能，探讨了新型菲涅尔透镜的数控加工工艺，并自动生成了加工程序。

. As a result, there is obtained a square or rectangular sheet 6 of Fresnel lens having the prescribed size as shown in FIG.

第8条第。作为一个结果，是获得了正方形或长方形板材6菲涅耳透镜具有明尺寸显示图。

The thin film deposition is used to make 16 step Fresnel lens. It can implement system′s lightweight, miniaturization and increase free degree of the design.

使用薄膜沉积法制作16阶菲涅耳透镜，用它代替常规的光学透镜可实现系统的轻量化、小型化，并增加系统设计的自由度。

The plane of emergence on the second major surface of the first sheet member includes the Fresnel lens formed of a radiation curable material.

第一板部件的第二主表面的出射面包括由辐射可固化材料形成的菲涅耳透镜。

Step Fresnel lens of high diffractive efficiency is fabricated by ion beam etching.

使用离子束刻蚀法成功制作高衍射效率16阶菲涅耳透镜。

Once per year at the Pigeon Point Lighthouse they shut down the weak insipid modern light and switch over the the 5 kerosene lamps and fresnel lens of the original, as it was 135 years ago.

&每年一次&的鸽子点灯塔，他们关闭了弱平淡的现代光，而改用了5煤油灯和菲涅尔透镜原，因为这是135年前。

. It is necessary to cut the sheet 5 of Fresnel lens as the semi-finished product along the four cutting lines to remove the unwanted portions from the sheet 5 as described above.

第8条第。既要削减表5菲涅耳透镜作为半成品，沿线四个切割线，以消除有害的部分，从表五如上文所述。

The first one is to develop the design platform for hologram imaging. The second one is to develop the hybrid Fresnel lens. Experimental verifications are also scheduled to ensure the reliability of design platform..

另一个研发课题是发展非对称菲涅尔镜片的设计平台，可以进行最佳化与公差容忍度分析，并委外制作镜片，再加以实验验证，以确认设计平台的可信度。

In the second chapter,I calculate the diffractive efficiency when there arealignment error,depth error of the step and the work was elength error,based on the theory ofthe fresnel lens.

第二部分文章在介绍菲涅耳透镜设计原理和衍射效率计算的基础上，重点分析了存在各种加工误差时候的衍射效率的计算情况。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。