照明度

An optical system of measuring system is constituted by a illuminating system and a magnifying system. The illuminating system adopts a far center illuminating mode to make the illumination unified. The magnifying system all adopts object far center optics path to eliminate the error for out of focus. The objective is a plan and apochromat to make image clear. The operator adjusts focus with parameters provided by computer.

论文分析了纤维细度测量系统的光学系统：照明系统采用远心柯勒方式，实现物面的均匀照明；成象系统采用物方远心光路，减少离焦对纤维细度测量的影响；物镜采用平场消色差物镜，消除因为象差引起的图象变形和不清晰，为纤维细度的高精度测量奠定基础；在图象清晰度判别中采用计算机计算参数结合人工调整的方法，既保证结果的客观性，又使系统简化。

According the testing results, the contrast, uniformity and chromatic performance of the projector is discussed.

由测试结果出发，对投影系统的对比度、画面照明均匀度和色度学特性等问题进行了讨论。

According to the principle and composition of machine vision and the specific requirements of voice diaphragm concentricity measure system, and based on analyzed the features of voice diaphragm , proper camera, lens, lighting manner, light source and background were chosen to form and realize the vision system of the system.

根据机器视觉的原理、构成和同心度测量系统的具体要求，在分析了音膜的特征的基础上，选择合适的摄像机、镜头、照明方式、光源和背景构建并实现了音膜同心度测量系统的视觉系统。

After being reflected by the object,the projection slit is imaged on a detection double slit through another lens.

准直激光束照明的投影狭缝由一个透镜以掠入射角度投影在被测物体上，狭缝投影经过被测物体表面的反射和另一个透镜的成像在探测双缝上形成投影狭缝像。

Based on the conclusion,a spectral irradiance calibration unit using parallel light was established,it was composed of a 150W deuterium lamp,a 500 W xenon lamp and a spherical mirror.

实验证明了发散光照明模式和平行光照明模式标定的光谱辐照度响应度在定标误差范围内一致。

X ray microscope enables specimens to be kept in air and in water, which means that biological

观察研究。其使用的照明度，即所谓的软性X 射线，其波长在20 到40 埃之间1 米的100

In order to find the optimal way of the LED presentation, six factors were studied, which were Chinese character typeface, character size, the colors of the characters collocates with the background colors, environmental illumination, the moving speed and direction of the characters.

因此本研究中所要探讨之差异包括：(1)字型种类；(2)字型大小；(3)文字／背景颜色；(4)环境照明度；(5)字幕移动速度；(6)字幕移动方向。

Because of the wavelength of the x rays used, soft x ray microscopes will never match the highest resolution possible with electron microscopes.

其使用的照明度，即所谓的软性 X 射线，其波长在 20 到 40 埃之间(1 米的 100 亿分之一为 1 埃)。

The illumination used, so called soft x rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten billionth of a meter), is also sufficiently penetrating to image intact biological cells in ma ny cases.

其使用的照明度，即所谓的软性 X射线，其波长在 20到 40埃之间(1米的 100亿分之一为 1埃)。在许多情况下也能够穿透完整无缺的生物细胞并成像。

The illumination used, so called soft x rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten billionth of a meter), is also sufficiently penetrating to image intact biological cells in ma ny cases.

这就意味着生物样品可以在与它们自然环境相近的条件下被观察研究。其使用的照明度，即所谓的软性 X 射线，其波长在20到40埃之间(1 米的 100亿分之一为 1 埃)。在许多情况下也能够穿透完整无缺的生物细胞并成像。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。