查询词典 optical distance

The factors such as conjugate framework withsmall conjugation energy, central asymmetry, long conjugate chain,introduction of electron donors-acceptors, strong electron-donating orelectron-withdrawing abilities, long distance between electron donors andelectron acceptors, good coplanarity and so on lead to high third-order optical nonlinearities.

离域能小的共轭骨架，非中心对称结构，长的共轭链，吸供取代基的引入，取代基强的供电子性或吸电子性，长的吸供电子取代基之间的距离，以及良好的共平面程度等因素有利于获得较大的三阶非线性光学性能。

Firstly, the relationship of Atomic force and distance is studied. The scan type of samples and the working mode of probe is confirmed, then PZT is chosen as actuator for micro scan displacement, and optical deflexion method is used to detect the deflexion value of cantilever. After all these work, the system light path design is finished, and its mathematical model is completed.

首先，分析了原子力探针系统的中原子力–距离的关系，并确定探针系统的探针的工作模式和样品的扫描模式，从而选择压电陶瓷作为扫描微位移驱动器；采用光学偏转法检测微悬臂偏转量，并选用了PSD作为传感元件，并在此基础上进行了系统光路设计及其数学模型的建立。

A scheme was presented to transmit 272 signals between time of flight counter electronics and trigger electronics in Beijing Spectrometer Ⅲ, using the chipset of serializer/deserializer and optical transceiver, achieving reliable long-distance transmission with only minute error rate.

在北京谱仪改造中，提出了使用并串／串并转换的方式通过光纤传输272路飞行时间计数器电子学信号给触发系统的方案，实现了误码率极小的可靠性长距离传输，并且验证了光纤传输在高密度信号远距离传输中的传输可靠性。

Methods Acˉcording to the standard YY0290"Intraocular Lens",dioptric power,differentiate rate,axial displacement under presˉsure and optical eccentric distance of10types of intraocularlens were tested.

按照行业标准YY0290《人工晶体》规定的方法对国内外10种一件式或三件式人工晶体的屈光度、分辨率、压缩力下轴向移位和光学偏心等指标进行了测试。

It showed that the energy focusability of the diffraction beam depended on the transmission distance,diffraction aperture and facula radius,and appropriate energy focusability could be obtained by controlling some parameters of the optical system.

研究结果表明，衍射光束的能量集中度与传输距离、衍射孔径、光斑半径等参量有关，通过对光学系统参量的控制，可得到合适的能量集中度。

5Calibration of the laser optical axis of the basic principles and methods isdiscussed, laser target designator axis calibration device is designed, the key technologythat a large caliber, long focal distance from the axis parabolic reflector design is solved,and the cross target line which can be used for a wide variety of observation devices isdesigned, the final calibration accuracy is 0.05mrad.

5论述了激光光轴校正的基本原理和方法，设计了激光目标指示器光轴校正装置，解决了其中的关键技术：大口径、长焦距离轴抛物面反射镜的设计问题，并设计了可用于多种观瞄装置的十字靶标，最终的校正精度达0.05mrad。

The focal length f is the distance of the focus of an optical system from the assigned main point.

焦距f 是光学系统主点到焦点的距离。

Image of the object presents on the focal plane from long enough distance .For the optical imaging feature, a corresponding location method is proposed.

在足够远的距离上，物点会成像在透镜的焦平面处，针对这一成像特点，本文提出一种基于光学成像的目标定位方法。

Stability of resonator with thermal lensing inside is discussed by optical transmission matrix. The fluctuation range of thermal focal distance affects the laser power and the beam quality.

运用光学传输矩阵的分析方法对内含热透镜元件谐振腔的稳定性进行了分析，讨论了热焦距的波动性对激光输出功率和光束质量的影响，提出了固体激光器谐振腔设计的基本原则。

Ohio State University, according to visual determination of the clinical professor Gregory Goode introduction, if your prescription is very simple, is not required at the same time to correct hyperopia and myopia dual optical lens, or does not require correction with a close-up, respectively, visual, medium-range vision and distance vision three focal length lens, you can with a pair of cheap glasses.

俄亥俄州立大学，根据临床教授格雷戈里古德介绍视觉的决心，如果你的处方很简单，不需要在同一时间，以纠正近视和远视的双重光学镜头，或者不需要的特写镜头校正，分别，视觉，中程的远见和远视力3焦距镜头，你可以用廉价眼镜。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐