First, the objective lens, often considered the heart of the microscope.

首先，物镜，通常被认为是显微镜的心脏。

The projector lenses magnify what has already been magnified by the objective lens.

投影镜头放大了物镜已经放大的图像。

They're just applying this objective lens.

他们只是在运用这种客观的视角。

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

工作原理如下：物镜摄取来自远处光源的入射光线。

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

物镜从远处接收入射光线。

A flatter, convex objective lens reduced chromatic aberration, gave a longer focal length and, for a fixed eyepiece, greater magnification.

个更平坦的凸透物镜可以减少色差，提供更长的焦距， 并且对于定的眼镜片来说，能获得更大的放大倍率。

The objective lens then converges the light rays to form a real, flipped image inside the telescope.

然后物镜会聚 光线，在望远镜内部形成个真实的翻转图像。

The imprinted beam of electrons is then magnified 40 times using an objective lens and further magnified 50,000 times using a set of projector lenses.

然后，印制的电子束通物镜放大40倍，再通投影镜进步放大50,000倍。

And like, I'm telling you, it's false, you know, because I can look at it through an objective lens and get rid of these 30 billion.

就像我告诉你的， 这是错误的，因为我知道， 通客观的视角， 我可以摆脱这300亿。

While Galileo used a concave lens for his eyepiece, the standard refracting telescope uses a convex, converging lens for both the objective lens and the eyepiece.

伽利略的目镜使用凹透镜，而标准折射望远镜的物镜和目镜都使用凸透镜。

After all of the like terms cancel out, you’re left with a magnification equation in terms of the focal lengths of the objective lens and the eyepiece.

在所有同类项抵消后，你将得到个以物镜和目镜的焦距表示的放大倍率公式。

The object is placed just beyond the focal point of the objective lens, so light rays again form a flipped real image on the other side.

多。 物体被放置 在物镜焦点之外，因此光线再次 在另侧形成翻转的实像。

The original subtended angle is the subtended angle of the unaided eye – the angle between the center of the objective lens and the height of the real image.

原始张角是未使用辅助工具的眼睛的张角——即物镜中心与实像高度之间的角度。

It consisted of an objective lens on the end closest to the object and an eyepiece at the other end, which magnified the image produced by the objective lens.

它由最靠近物体端的物镜和另端的目镜组成，它放大了物镜产生的图像。

After all of the like terms cancel out, you're left with a magnification equation in terms of the focal lengths of the objective lens and the eyepiece. .

在所有类似的项抵消之后，就物镜和目镜的焦距而言，您会得到 个放大倍率方程。

When viewing a celestial object a great distance away, the distance between the two lenses would equal the focal length of the objective lens minus the focal length of the eyepiece.

当观察远处的天体时，两片透镜之间的距离等于物镜的焦距减去目镜的焦距。

Therefore, a considerable amount of science and engineering is dedicated to reducing the aberrations introduced by the objective lens, as that is what ultimately limits the sub-nanometer scale resolution of the microscope.

因此， 大量的科学研究和技术致力于减少物镜引入的像差，因为这最终限制了显微镜亚纳米级的分辨率。

And in a ray diagram, you can see that the tangent of the first angle, theta, is the height of the real image over the focal length of the objective lens.

在射线图中，您可以看到 第个角度的切线 theta 是真实图像 在物镜焦距上的高度。

Every time the diameter of the objective lens is doubled, the light gathered increases by a factor of four, and objects of similar light output can be detected if they are twice as far away.

每次物镜的直径翻倍，收集到的光线就会增加四倍，同时也能探测到两倍远距离处具有相似光输出的物体。

Many, like the Hubble Space Telescope, are reflecting telescopes, using mirrors as the objective lens so that they can have huge openings, taking in as much light as possible in order to best capture images of distant objects.

许多，如哈勃空间望远镜， 都是反射式望远镜， 使用镜子作为物镜， 这样它们可以拥有巨大的开口，尽可能多地摄入光线， 以便最好地捕捉遥远物体的图像。