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  • 你知道交通信号灯为什么是红黄绿吗?
  • 本站编辑:浙江芯源交通电子有限公司发布日期:2018-06-08 15:15 浏览次数:
403圆盘灯
 
交通信号灯为什么选择红黄绿三种颜色呢?
Why do traffic lights choose red, yellow, green, and three colors?
在道路交通中,停止还是通行是与我们生命安全息息相关的。所以,用来表示这两种语言的颜色,既要容易被看到,还得不容易被看混。现在,我们来看看,交通信号灯是不是符合这个标准。
In road traffic, stopping or passing is closely related to our life safety. Therefore, the color used to express the two languages is easy to be seen and not easy to be confused. Now let's see if the traffic lights are up to this standard.
首先,我们来介绍一个关于色调的小知识。人们常用一个标有各种色调的圆环来对颜色进行排列,在色调环上距离越远的颜色,色调差异就越大,更容易被我们所区分。红色和绿色分别位于色调环的两边,这表示两者差异非常大,所以不容易弄混。
First, let's introduce a little knowledge about hue. People often use a ring with a variety of colors to arrange the color, the farther the color in the tone ring, the greater the difference in hue, and more easily distinguished by us. Red and green are located on both sides of the tonal loop, which means that the difference between them is very large, so it is not easy to mix up.
而黄色呢,是处于红色和绿色中间的一种颜色,也就是说黄色与红绿色差异也很大。并且,红色和黄色光的波长都很长,容易被人们的视觉观察到。所以呢,我们看到的交通信号灯就是由这三种颜色所组成的。
And yellow is a kind of color between red and green, that is to say, yellow is different from red and green. Moreover, the wavelengths of red and yellow light are very long, which are easy to be observed by people's vision. So the traffic lights we see are made up of these three colors.
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