Spherical reflectors don't perfectly focus all the incoming rays.

球面反射器不能完美地聚焦所有入射光线。

The objective lens takes incoming light rays from a distant source. .

物镜从远处接收入射光线。

Since the source is so far away, the incoming rays are considered parallel.

由于光源距离很远，入射光 线被认为是平行的。

Here’s how it works: The objective lens takes incoming light rays from a distant source.

它的工作原理是这样的：物镜从远处接收入射光线。

The incoming rays then enter through the cornea and strike the retina at the back of the eye.

然后，入射光线通过角膜进入 眼睛后部的视网膜。

Since lenses have edges, the incoming rays will always diffract and produce slightly blurred images, even if the lens is perfectly crafted. .

由于镜头有边缘，即使镜头制作精良，入射光线也会 始终衍射并产生略微模糊的图像。

That works because you’ve taken a bunch of incoming parallel rays, and placed your target of choice at the focal length of the magnifying glass.

这是可行的，因为您已经拍摄了一束入射的平行光线，并将您选择的目标放在放大镜的焦距处。

That works because you've taken a bunch of incoming parallel rays, and placed your target of choice at the focal length of the magnifying glass.

这是有效的，因为您已经获取了一组入射平行光线，并将它们对准放大镜的焦距。

But some molecules hold most of their negatively-charged electrons closer to one side, lending them a lopsidedness that can jiggle back and forth to absorb the energy of incoming infrared rays.

但是有些分子将其大部分带负电的电子放在靠近一侧的地方，使它们具有一种倾斜性，可以来回抖动以吸收进入的红外线的能量。

But some hold most of their negatively-charged electrons closer to one side, lending them a lopsidedness that can jiggle back and forth to absorb the energy of incoming infrared rays.

但是有些人将大部分带负电的电子保持在靠近一侧的位置，从而使它们不平衡， 可以来回摇晃以吸收入射红外线的能量。