查询词典 source of light

A unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions.

光通量单位等于一国际烛光照射在距离为一厘米面积为一平方厘米的平面上的光通量。

The symmetry no longer existed when the projection of light source is not located in the symmetry center of rectangular aperture.

当光源的孔面投影不在矩孔中心时光强分布的对称性不复存在。

Study on the calculating methods for correlated color temperature of light source.

光源相关色温计算方法的研究。

The first disadvantage of MMI device is wavelength sensitive, which leads to restricted applications. To reduce the wavelength insensitivity in optical network applications, the demand of light source with a specific wavelength is needed, especially for power splitters. For this reason, a wideband criterion for MMI splitter is proposed. The basic principle is based on reducing the interference length difference and making it shorter than the spot size for constructive mode interference. Simulation results show the spectra of proposed MMI splitter is wide enough (1.26-1.61um) to cover the fiber communication band and the size of the splitter is more compact than that of the conventional MMI or Y-branch splitter.

多模干涉元件的第一个缺点为波长敏感，此缺点会限制其在实际上的用途；因元件在网路上的应用时，通常都需要降低波长敏感性，以减低对光源波长准确性的要求；有鉴於此，本论文提出多模干涉分光器的宽频标准；基本原理是建立在缩短其多模干涉区的长度差，并使之小於建设性干涉的光点大小；透过模拟后发现，操作频宽可涵盖光纤通信全波段(1.26-1.61um)，且长度小於Y形分支结构的分光器。

The hardware structure platform of this system consists of light source Super LED, Web Cameras and Convex Lens.

本系统之硬体架构平台是使用光源、网摄影机和凸透镜所组成。

Such a lamp requires water cooling, and when operating it is a very intense source of white light.

这种灯需要加以水冷，当它工作时是一个十分强烈的白光光源。

Because the differential algorithm of facula intensity is applied, the noise and the drift of light source can be reduced remarkably. Using the linearity of differential confocal characteristic curve, the high axial resolution is achieved at a larger sampling interval.

通过使用光斑光强差动算法，可以有效抑制光源的噪声和漂移对测量结果的影响；利用差动共焦特性曲线中的线性关系，实现在较大采样间距下获得较高的轴向分辨率。

Based on the study of division of amplitude photo polarimeter, the principle of a division of amplitude photo measuring BCPM is introduced in this thesis. Simultaneitily, it has made a research on sues for the characters of light source for survey.

本文介绍了分振幅测量斯托克斯参量的方法，在此基础上进行光路的改造，提出了相干偏振矩阵测量的基本原理以及其对待测光束入射条件的要求，然后进行了测量系统软、硬件设计。

Planted in greenhouses has been conducted with two types of light source of 400 watt, one of which is a high pressure sodium lamp, and the other is a sunlight dysprosium lamp.

用400 W的高压钠灯和日光色镝灯两种光源对温室栽培生菜（Lactuca sativa L。）的生长进行了补光效果测试。

The electron "gun" which produces the electrons is equivalent to the light source of the optical microscope.

电子"枪"可以产生电子束，电子束相当于光学显微镜的光源。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。