By definition, color is the visible spectrum of light waves.

根据定义，颜色是光波的可见光谱。

Beyond the visible spectrum, our world is illuminated by invisible light.

除了可见光之外，各种不可见光也笼罩着这个世界。

This is what we call “visible light, ” also known as the visible spectrum.

这就是我们所说的“可见光”，又叫可见光谱。

And blue light has some of the highest energy wavelengths in the visible spectrum.

而蓝光在可见光光谱中具有最高能量的波长。

Electromagnetic radiation with a wavelength outside the visible light spectrum is invisible to our eyes.

在可见光谱范围之外的电磁辐射波长是肉眼看不见的。

And because this happens to every frequency in the visible spectrum, the combined color of all colors is white.

因为光谱里任何频率的可见光都会这样反射，所以所有颜色的光最后合起来成为白色。

Infrared can pass through human tissue more easily than some other wavelengths of light, like the visible spectrum or UV.

相比其他光的长波长，红外线更加容易的穿过人体组织，比如可见光谱或UV。

It includes ultraviolet at the far end of the non visible spectrum and three infrared bands at the other end.

它包括非可见光谱，一端是紫外线，另一端是三个红外线波段。

If you want to see all of the colors in the visible light spectrum, look no further than a rainbow!

如果你想看到可见光谱中的所有颜色，没有什么比彩虹更合适了。

Yet we know for a fact that those color frequencies outside our visible spectrum are there.

然而， 我们确实知道，可见光谱之外的那些颜色频率就在那里。