# 原色#

## 常见的疑惑#

### 同色异谱：为什么混合色和单色可能有同样的视觉效果？#

The human eye is sensitive to broad bands of light wavelengths, and thus the eye is NOT a spectrometer: it interpolates colors depending which of the three cones are receiving light. For example, there are two ways to make “yellow” light. 1) use equal amounts of red and green light. These stimulate the red and green cones, and the brain sees “yellow”. 2) use a wavelength of light that is between red and green (about 565nm). Because the response of the red and green cones overlaps, this single color also stimulates both the red and green cones. The brain sees “yellow in both cases. [1]