By assuming the weak lens focal length expression to be the first term in a power series a simple and accurate formula can be derived for the objective focal length of a magnetic electron lens.
用假设弱透镜焦距表达式是一个幂级数中的第一项的方法，可以导出相当准确且便于实用的电磁电子透镜物镜焦距公式。
Once unleashed, the power channels through a positively charged continuous energy lens at the center of the handle.
一旦被释放，能量会通过剑柄中部带正电荷的能量透镜。
It is shown that the transformation characteristics depend on optical beam power, the beam waist of incident beams, object distance and lens parameters.
结果表明，它的变换特性依赖于光功率、入射光束的束腰、物距以及透镜参数。
The biggest single factor influencing lumen output on this projector is not the lamp power mode, but rather the position of the zoom lens.
最大的唯一因素影响流明输出在这台放映机是没有灯力量方式，而是宁可变焦镜头的位置。
In order to increase the irradiation power density of local view point, the low loss Teflon microwave lens focusing energy of microwave is used near the irradiating horn.
为了提高局部观察点的辐照功率密度，在辐照喇叭口采用了低损耗聚四氟乙烯微波透镜以聚焦微波能量。
It will be used in the illumination system of high power semiconductor laser over a long infrared distance of 100 meters through adjusting an additional geometric optical lens.
然后通过调节外加的几何光学透镜，在长达100米的红外远距离大功率半导体激光器照明系统中将得到利用。
We present a novel confocal laser method (CLM) for precise testing of the dioptric power of both positive and negative intraocular lens (IOL) implants.
提出了一种新的共焦激光方法，可以精确测量正度数与负度数人工晶状体植入物的屈光度。
Project, the author is responsible for optical design of the lens, structure, electronic box circuit, software and hardware design of the laser power-tester.
在本文中，作者负责激光功率计的镜头光学设计、结构设计，电子箱电路软硬件设计工作。
Because the power stable, selection of long life laser tube and import lens combination, make ZT series shake the machine service life and reliability is greatly increased.
由于选配了功率稳定、超长寿命的激光管和进口镜片组合，使得ZT系列刻章机寿命和可靠性大大提高。
The methods to avoid the ghost damages are introduced, and the guidance for the design of lens in the optical design of the high power laser facility is provided.
研究了高功率激光装置中的鬼点反射及其带来的破坏影响，给出了避开鬼点反射损伤的方法，可为高功率激光装置中透镜的设计提供参考。
Wide-Angle lens: lens with wide covering power. It has a focal length which is less than the diagonal of the film format with which it is being used.
广角镜头：覆盖范围广阔的镜头。它的焦距长度短于所用菲林格式的对角线长度。
We present a novel confocal laser method for precise testing of the dioptric power of both positive and negative intraocular lens implants.
提出了一种新的共焦激光方法，可以精确测量正度数与负度数人工晶状体植入物的屈光度。
Objective: To analyze the aberration properties of contact lens and its central back vertex power measurement.
目的：探讨接触镜的球差特征以及后顶焦距测量的实质。
CONCLUSION: the cataract patients could restore certain pseudo-accommodation power after the implantation of accommodating intraocular lens (1cu).
结论：白内障患者术后植入1CU，可获得一定程度的拟调节力。
The influences of the thermal lens effect on the oscillation beam radius and diffraction loss can be reduced by increasing the proportion of the end-pumping power.
提高端面抽运功率占有率，可在一定程度上减小热透镜效应对振荡光束尺寸和衍射损耗的影响。
He or she will also determine the power of any lens correction needed to provide clear vision.
它们也会判断出你看清事物所需的矫正镜片的屈光度数。
In that case, Fourier transform system with long focal length and high power lens and method of linear decision are proposed.
以肺癌细胞筛选为例，提出用长焦距、高倍率的傅里叶变换系统和线性判别处理。
AIM: to evaluate the choosing of intraocular lens power for children with congenital cataract and its postoperative influence on the children's refractive change and axial growth.
目的：探讨先天性白内障植入人工晶状体度数的选择及人工晶状体植入术后对眼球发育状况的影响。
This installation is finally captured through the lens of a camera and concludes a calculated design that intends to exploit the power of photography and its ability to portray false reality.
柳贤美再用摄影机的镜头捕捉这装置艺术，每一件作品都是经过用心的设计，藉以突显摄影的威力，以及摄影如何混乱了虚构和真实之间的界限。
The adverse projection measuring method reverse the position of object and image in the imaging system of lens, it overcome back focus length and resolution power limitation.
逆投影法颠倒镜头成像系统物和像的位置，克服了手机镜头后焦、像素等的限制。
Conclusion High power EMP radiation inhibited proliferation of lens epithelial cells.
结论高场强大剂量的EMP辐射可抑制晶状体上皮细胞的正常增殖。
Conclusion the length of axis, corneal refractive power, lens thickness, anterior chamber depth and age have certain effect on the spherical equivalent refraction.
与角膜厚度、眼压无明显的相关性。结论眼轴长度、角膜屈光力、晶状体厚度、前房深度和年龄对近视度数(等值球镜度数)均有一定的影响。
Applying the mechanics of the propagation of high power microwave in atmosphere and the theory of plasma physics, a sort of new conception antenna-active lens antenna based on plasma is put forward.
应用高功率微波大气传输机理和等离子体物理理论，提出了一种新概念天线等离子体有源透镜天线。
Laser techniques is surging with LD-pumped solid-state laser. But, the stability, model and beam quality of the laser are strongly affected by the thermal lens effect at high power.
LD泵浦固体激光器出现使激光器得到飞速发展，但是其在大功率运行时所表现出的强烈的热透镜效应，严重影响了激光器的稳定性和输出光的模式、光束质量。
This prevents the problem of unexpected extension of the lens since the lock function is in effect if the power button is pushed.
电源按钮锁定功能可防止镜头因为按下电源按钮而意外伸出。
The quality Of image and the effect of anopheline mosquito were better by using low power lens and low diaphragm.
用低倍镜小光圈成像质量好，解剖按蚊效果满意。
The experimental results show that the power supply can satisfy the requirement of the H-PDLC switchable lens devices, and bring benefit to the integration of the whole system.
实验结果表明，该电源设计能够满足聚合物分散液晶全息透镜器件中的液晶分子光轴驱动的需要，并能实现器件的小型化和便捷式。
The experimental results show that the power supply can satisfy the requirement of the H-PDLC switchable lens devices, and bring benefit to the integration of the whole system.
实验结果表明，该电源设计能够满足聚合物分散液晶全息透镜器件中的液晶分子光轴驱动的需要，并能实现器件的小型化和便捷式。
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