色差-经常在折射望远镜的物镜上出现，是因为透镜不能把不同波长(颜色)的光聚焦到一点而形成的。
Chromatic Aberration — usually associated with objective lenses of refractor telescopes, is the failure of a lens to bring light of different wavelengths (colors) to a common focus.
最近，一系列不确切的试验表明，我们甚至可以通过我们母语透镜察觉各种颜色。
Recently, it has been demonstrated in a series of ingenious experiments that we even perceive colors through the lens of our mother tongue.
配上不同的颜色玻璃和不同的发散透镜，可获得各种颜色、各种发散角的扇形光束。
Sector beams in different colors and with different angles of divergence are available when equipped with different color and divergent lenses.
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