The amount of light it collects depends on the area of the objective.

它收集的光的数量取决于物镜的面积。

I snapped the first slide into place under the microscope and adjusted it quickly to the 40X objective.

我啪的一声把第一张玻璃片放到了显微镜下面合适的位置，并迅速调整到了40倍物镜。

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

物镜从远处接收入射光线。

The resolution depends in part on the size of the objective; in general the bigger the telescope objective, the better your resolution is.

度部分取决于接物镜的小；一般来说，望远镜的物镜，高。

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

然后物镜会聚 光线，在望远镜内部形成一个真实的翻转图像。

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.

在抵消所有类似项后，您将得到一个关于物镜和目镜焦距的放方程。

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. .

在所有类似的项抵消之后，物镜和目镜的焦距而言，您会得到 一个放倍方程。

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.

原对角是肉眼的对角——物镜中心与实像高度的夹角。

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 在另一侧形成翻转的实像。

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.

它由最靠近物体一端的物镜和另一端的目镜组成，它放了物镜产生的图像。

A simple magnifier isn’t enough to study objects on the cellular scale, so we’ve developed compound microscopes, which like a telescope, use objective lenses and eyepieces to magnify objects.

一个简单的放镜不足以在细胞尺度上研究物体，因此我们开发了复合显微镜， 它像望远镜一样， 使用物镜和目镜来放物体。

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 第一个角度的切线 theta 是真实图像 在物镜焦距上的高度。

Although there have been many improvements made over the centuries, most big modern telescopes at their heart are based on the Newtonian design, and in fact no large professional-grade telescopes made today have a lens as their objective.

尽管几个世纪以来已经有了很多改进，但多数型现代望远镜的核心都是基于牛顿的设计，事实上，现在制造的型专业级望远镜都不使用透镜作为接物镜。

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，如哈勃太空望远镜， 都是反射望远镜， 使用镜子作为物镜， 这样它们可以有巨的开口，吸收尽可能多的光线， 以便最好地捕捉远处物体的图像。