Diffractive efficiency of Fresnel lens is important factor to evaluate the quality of Fresnel lens.
菲涅耳透镜的衍射效率是评价菲涅耳透镜质量的一个重要指标。
Four kinds of laser source are used to measure the diffractive efficiency of Fresnel lens.
使用四种不同光源，对菲涅耳透镜的衍射效率进行测试。
Surface mount LED lamp. High efficiency red, super bright green. Lens type water clear.
表面贴装LED灯。效率高红，超明亮的绿色。镜头类型，水质清澈。
Furthermore, we conduct the experiments and gain the efficiency of coupling and spot after the execution of the fiber piles and lens.
在完成了光纤排、透镜组的加工制作之后，我们进行了耦合实验，得到了耦合效率以及光斑图。
The optical design and optical efficiency of line focus cylindrical Fresnel lens for solar concentrator are discussed.
研究了柱面线聚焦菲涅耳太阳聚光透镜的光学设计和光学效率。
Taking 4 step and 8 step and 16 step Fresnel lens for example, the effect of alignment error on diffractive efficiency is analyzed systematically and simulated by computer.
并以4台阶、8台阶、16台阶菲涅耳透镜为例，系统分析对准误差对衍射效率的影响并进行计算机模拟研究。
The simulation results show that the optical coupling efficiency is determined by fiber position, the lens design of the photodiode chips, and the shape of the light source.
模拟结果显示，耦合效率的大小由光纤位置、芯片透镜尺寸和激光光源光斑形状共同决定。
The optical-optical slope efficiency is 19% which is much higher than that of the focusing of non-sphere Lens under the same conditions.
光光斜率效率达19％，明显高于同等情况下非球面透镜聚光的效果。
Specially, the thermal lens effect is intensified due to the long tail attached to pulse, which leads to decreasing of conversion efficiency if pulse repetition rate is enhanced.
特别由于脉冲附带长的拖尾加剧了热透镜效应，使得脉冲重复频率的增加引起转换效率的降低。
By this way we can design high diffraction efficiency, as well as lager numerical aperture diffractive lens under current machine fabrication condition.
该方法在现有衍射透镜加工设备分辨率条件下，可提高衍射透镜的衍射效率，增大衍射透镜的数值孔径。
The mostly used techniques to improve the coupling efficiency and alignment tolerance include using micro single lens, micro lens group and lensed fiber.
通常采用单个透镜，透镜组或者光纤微透镜的方式来改善半导体激光器的出射光束质量，提高耦合效率和容忍度。
A holographic lens is developed and its reconstruction diffraction efficiency is as high as 63%.
实验研制了一个全息透镜，其再现衍射效率达到63%。
Coupling efficiency can be maximized by optimizing the relative aperture of coupling lens.
通过优化耦合透镜相对孔径，可以实现较高效率的耦合。
The CAM CAD system for optical zoom lens applys computer technology to design zoom lens automatically with high precision and high efficiency.
光学变焦凸轮计算机辅助设计系统是应用计算机技术，实现对变焦凸轮高精度、高效率的自动化设计。
The lens bearing device is convenient to bear the lens, and can save raw materials and improve the production efficiency and the yield.
使用本发明的镜片承载装置承载镜片操作方便，并能节约原料，提高镜片生产效率及良率。
Based on this analysis we have designed two type lens ducts and the coupling efficiency as high as 84% with quasi CW laser diode array was obtained for ar uncoated lens duct.
基于这种分析，我们设计了两种结构的透镜导管，用激光二极管阵列实验测得未镀抗反膜的透镜导管的耦合效率高达84%。
The principle and method of applying laser technology to the lens centering are discussed. The merits of it are high efficiency and accuracy.
本文介绍了激光技术应用于光学透镜定心的加工原理和方法，它具有高效率、高精度的优点。
But the study on the theory of Maxwell fisheye microspheric lens shows that on certain condition it has fine image formation ability and coupling efficiency.
但通过对麦克斯韦鱼眼微球透镜的理论研究表明，在一定条件下，它具有良好的成像性能和耦合效率。
To evaluate the efficiency of the treatment in dis location of lens.
目的评价多方法系统治疗晶状体脱位的疗效。
The influences of factor F and modeling plate on the lens' optical efficiency are also analyzed.
还分析了透镜相对孔径 （F数 ）和成型模具等因素对透镜光学效率的影响。
Using high light efficiency, small size, non-continuous surface free-form lens design method.
高出光效、小体积、非连续表面自由曲面透镜设计方法。
The light output efficiency is improved over 60%, which is 2.7 times than that of the UV LED packaged with metal and glass lens.
实验结果表明，新封装结构的LED，发光功率提高了60%以上，是金属与玻璃透镜封装LED的2.7倍；
In order to raise the couple efficiency of pumping double cladding fiber laser, the beam is reshaped with rectangular prisms, spatial filtered and focused with aspheric lens.
为了提高双包层光纤激光器泵浦光的耦合效率，对泵浦光采用直角棱镜组进行了光束整形、空间滤波、非球面镜聚焦。
With an optical system composed by dressing-case of microscope and lens, this method provide lots of merits such as durability, convenience and high coupling efficiency.
本文介绍了一种用显微镜筒与透镜构成的光学系统来实现光源与光纤耦合的方法。
With an optical system composed by dressing-case of microscope and lens, this method provide lots of merits such as durability, convenience and high coupling efficiency.
本文介绍了一种用显微镜筒与透镜构成的光学系统来实现光源与光纤耦合的方法。
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