poly-carbonate len

The equipment can be used not only in welding with lens focusing,but also in cutting with off.

6m rad,为TEM00与TEM01的混合模式;三工位光路转换器的使用,提高了工作效率,增加了加工的灵活性;根据焊接和切割具体要求,设计了透镜聚焦和离轴抛物面反射聚焦两种光束的聚焦方式。

We experimentally investigate the broadband partially coherent light focused by a focusing lens and especially the chromatic aberration effects of a focusing lens on the spectrum of the focusing light field at the geometrical-image plane.

实验研究了宽带部分相干光被会聚透镜聚焦,着重研究了聚焦透镜的色差效应对在透镜几何成像面的聚焦光场光谱的影响。

Based on this principle,we put forward a simple method for generating a Bessel beam with glass capillary and focusing lens.

对光纤中传播的电磁场分析发现,其纵向分量可以用贝塞耳函数及第二类变态贝塞耳函数来描述,据此,提出一种利用玻璃毛细管和聚焦透镜实现贝塞尔光束的简易方法。

Analysis and Measurement of Spot Focusing Lens Antenna Resolution

点聚焦透镜天线分辨率的分析与测量

Research on Manufacture and Optimized Methods of GRIN-rod Lenses;

自聚焦透镜制造技术与性能优化研究

Coupler Loss of Self-Focusing Lens Used in Optical Communication

光通信用自聚焦透镜耦合损耗的研究

Optical Parameters Of Selfoc Lens Measured by Modified Spot Way

改进的斑点法测量自聚焦透镜光学参数

PLANO-CONVEX SELFOC LENSES FOR COUPLING LASER DIODE TO FIBER

耦合半导体光源和光纤的平凸自聚焦透镜

Theoretical Analysis and Manufacture Craft of Square Self-focusing Lenses and It s Array;

方形自聚焦透镜及阵列的理论分析和制作工艺

A Study on the Coupling of High-power Laser Array and Selfoc Lens Array;

高功率激光器阵列与自聚焦透镜阵列耦合研究

Study on Focusing Lens System In Modulation Type Quasi-laminar Flow Electron Gun

调制型准层流电子枪聚焦透镜系统的研究

"A convex lens causes rays to converge on a single point, the focal point."

会聚透镜使光线会聚于一点,即焦点。

He focused the sun's rays on a paper with a burning-glass.

他用一面凸透镜把阳光聚焦在纸上。

variable focal length (cylindrical) lens

变焦(距)(圆柱)透镜

The focal length of the conelensing lens should be such that the image of the source just fills the projecting lens.

聚光透镜的焦距应使光源的像正好照满放映透镜。

He focused the sun's ray on a piece of paper with a burning-glass.

他用一面凸透镜把阳光在纸上聚成焦点。

The beam of flashlight diverges, but it can be refocused with lenses.

一个发散的闪光灯束可以用透镜重新聚焦。

ON ABERRATION THEORY OF THE COMBINED ELECTROMAGNETIC FOCUSSING CATHODE LENSES

关于电磁复合聚焦阴极透镜的象差理论

Magnetostatic Focusing of Cold Atomic Beams and Its Magnetic Lens on Atom Chip;

冷原子束的静磁聚焦及其芯片原子透镜

The Focal Performance Analysis of Cylindrical Microlenses by Boundary Element Method;

应用边界元方法分析微柱透镜的聚焦特性

manual zoom lens

(镜头)手控可变焦距透镜