查询词典 luminance

Would you need a 12% gray card to get the correct exposure using an ANSI calibrated meter (i.e., is the luminance setting for ANSI really equivalent to 12% reflectance?)?

那么我们是否需要一个12%的灰卡来得到一个正确的曝光值，当我们使用的是ANSI标准的测光表？

Although factors that affect the quality of an image captured at high speed include scene luminance, aperture size (f-number, f/#), shutter speed, and field of view, a simple calculation can determine the approximate shutter speed needed for such an application.

尽管影响高速捕捉图像质量的因素包括场景的亮度、镜头大小、快门速度和视野，不过对于这样的应用场合可以很简单就计算出大致所需的快门速度。

Therefore,a series of experiments on polishing quality of an ultra-smooth surface and polishing time were designed,which was judged according to the size of a scattering facula and luminance under the condition of total reflection.

为此，对所加工的全反射棱镜的超光滑表面抛光不同的时间，并在全反射条件下，根据全反射棱镜背向散射光斑的大小和亮暗的程度来判断所加工超光滑表面加工质量的检测方法，最终给出超光滑表面的抛光质量随抛光时间的变化。

Electric design in making medicament from power distribution electric, luminance, annihilating germ by ultraviolet radiation, fire alarm, wire and tube and so on, was discussed briefly in this paper.

从动力配电、气照明、外线灭菌、灾报警和电气管线等几个方面对制剂厂的电气设计作了简要的论述。

At last the luminance and the guide number of the flash lamp is measured respectively by illuminometer and digital camera.

最后采用照度计和数码相机对实现的LED电子警察闪光灯进行发光照度和闪光指数的测量。

This paper addresses the principles and process of the constitution of this standard and introduces the contents from the aspect of nocturnal environment safety and security , light pollution control, floodlighting luminance of building, artistic effect of lighting, lighting devices, and lighting power supply in detail.

上海市城市环境照明规范》于2 0 0 4年9月1日开始实施，本文阐述了该规范制订的原则和过程，并从夜间环境的安全与安保、光污染的限制、建筑物泛光照明亮度、照明艺术效果、照明设备和照明供配电等方面详细介绍了规范的内容。

For floodlighting , the luminance and the color of the lighted object depend not only on the power and the color of the illuminant, but also on the color of the lighted object (the spectral reflectance of the surface), so, if we choose the optimum matching illuminant for the lighted object in lighting design, we can get excellence and energy efficiency result.

泛光照明中，被照体的亮度大小、颜色变化等视觉效果不但与电光源的功率和光色有关，而且还与物体色等有关，所以在进行照明设计时，应选择光源色和物体色相匹配的光源，这样才有可能使泛光照明效果较好，而且达到照明节能的目的。

Gamma Screen luminance as a function of video voltage approximately follows a mathematical power function of the input video signal, the exponent of which is called gamma.

与录像电压有关的萤幕亮度大约跟随一个输入的数学能力函数视频信号，其解释者被叫为γ。

Besides both appearance and luminance, the safety of a headlight is a more important issue in the industry.

除外型和以外，前灯的安全在工业中是一个比较重要的议题。

They were illuminant ,visual field,background,and luminance.

主要探讨了影响色差评定的因素：光源、视场、背景、照度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。