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颜色分几种呢

更新时间: 2020-10-08 00:00:00     

颜色本质是人眼的视网膜视锥细胞对光的感应,视网膜视锥细胞有三种,分别对红,绿,蓝三种颜色敏感,因此光的三原色是红绿蓝。现有一种波长的光,例如钠光灯589纳米,众所周知红加绿得黄,那么必然是视网膜上的感红的细胞和感绿的细胞对该波长的光有反应,感蓝的细胞对该波长没什麽反应,最后表现为黄光。假设红绿蓝三种视锥细胞对589纳米光的感受强度为x,y,z,那么现在用一个混合波长的光,其红光绿光蓝光的强度也是x,y,z,那么人眼无法区别是红绿混合波长的光还是单波长的黄光。

关键词: 颜色

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