When blue light hits it, it opens up a little hole and allows charged particles to enter the eye-spot, and that allows this eye-spot to have an electrical signal just like a solar cell charging up a battery.
当蓝光照射时，它会打开一个小口 允许带点的微粒进入眼点中 这样眼点就有了电信号 就像是用太阳能细胞给电池充电一般