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第二百一十七章 托马斯杨三原色(光学)(1 / 1)

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自打牛顿用三棱镜分开太阳光,得到红橙黄绿蓝靛紫这些光谱以来。多个科学家对这个问题展开激烈的讨论,其中一个讨论就是,人的眼睛如何看到可见光的。

托马斯·杨觉得,不同颜色的光芒,首先是来源人视觉神经中可以区分开来的。

但是托马斯觉得七个颜色的光可以合成了一种人眼反而看不到的颜色的光,也就是白光,这本身是个有趣的事情。一般事物的呈现,应该是多个不同的东西合在一起,就是更浑浊的。怎么光却变得的更加透明清澈了呢?

这个看不见,具有一定的意义,看不见也是一种看见,比较明晃晃的世界,就是因为有了光照才产生,所以不但是能看得见,而且还是一个很高的光亮。

托马斯做了一个怪异而极其重要的实验,把分离出来的七色光中的三个颜色,往一个黑色的墙壁上照射,发现色彩都可以从红、绿、蓝这三种原色中得到。

一开始,托马斯有点晕,毕竟七色光的波长是不一样的,但是为什么蓝色和红色为什么还能合成紫光?蓝、红和紫光不都是单独的波长吗?

难道紫光的视觉效果,是跟蓝色和红色加起来的时候一样的吗?这是视觉无法区分紫和红蓝的结合吗?

这就是视觉本身出现的一个偏差,这个偏差会影响人类生活吗?会影响到哪里?

如何是蓝色和红色光结合,发出紫色光,那这种紫色光就不是真正的紫色,只是人眼看到的那种紫。这就容易被生活中的魔术般的假的颜色所影响。

那么如果人能够真正区分不同的光,那会使什么结果呢?那就是,人可以看到蓝红两者没有达到真正的混合,能看到两者直接互相参杂的,自然跟真正的紫色是不同的了。

而且人类如果能够区分,不同波长,不同的颜色,那这个世界就是色彩极其鲜艳的复杂色谱。几乎可以达到看物辩物的能力。

所以三原色,是人类视觉上的缺陷,但是这反而给人类带来便利。只需要三原色,调配其中发亮的比例,就能看到五彩缤纷的世界了。

喜欢数学心请大家收藏:数学心本站更新速度全网最快。

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