查询词典 eyepiece

Historically Abbe described microscope eyepieces using a different decomposition in terms of angular magnification of the eyepiece and 'initial magnification' of the objective.

虽然被接受的标准距离是250mm，但现在的显微镜会设计成只有160mm的焦距，使得仪器变得非常的紧凑。

For the image quality, the astigmatic and lateral color of the key aberrations of eyepiece are 0.58 mm and 18 μm, and the distortion is only 3.3%.

对于目镜中需要重点校正的像散和垂轴色差的最大值分别为0.58 mm和18 μm，而最大畸变也仅为3.3％；角分辨率为0.44 mrad，小于人眼的最小角分辨率。

Finally, I don't much care for the joined eyepiece caps either as they are balky to remove.

我倒不介意宾得给目镜配上了连体式镜头盖，虽然这个镜头盖有时挺难摘下来。

We decided to put the eyepiece in a big dob to see if the color was from the scope or the eyepiece and it virtually disappeared making me think that it was a combination of both.

我们决定把目镜一个大出生日期，看看颜色是从范围或目镜，它几乎完全消失，让我觉得这是两者的结合。

It's projected by the eyepiece so that it appears as a circle out in space when you look through the eyepiece.

它是由目镜投影的，当你在目镜中观察时它呈现为一个圆形区域。

Eyepieces are differentiated by their '' field stop '', which is the narrowest aperture that light entering the eyepiece must pass through to reach the field lens of the eyepiece.

目镜由他们的''视野阑''做区分，这是进入目镜的光线抵达场透镜前所经过的最狭窄孔径。

In order to get the largest possible field of view, low magnification eyepiece multi-use wide-angle eyepiece, depending on the field in general is greater than 3 °, FPA Office for aiming with the reticle with its optical axis to remain parallel with the primary mirror optical axis.

通常为口径小于10厘米的折射望远镜。为了得到尽量大的视场，目镜多选用低倍率的广角目镜，视场一般大于3°，焦平面处装有供瞄准用的分划板，它的光轴要与主镜光轴保持平行。

In today's eyepiece market, there is a lot of confusion about eyepiece characteristics and problems. What follows will be a basic guide, and I owe much of my text to innumerable threads from Cloudy Nights and other web sites:"It's easy to stand tall when you stand on the shoulders of giants".

如今的目镜市场，对于目镜的特性和问题有很多混淆，下面我将做一些基础的指导，我这里大部分的内容都来自于论坛里面好多老的好帖子，我只是站在了巨人的肩膀上。

In the Huygenian eyepiece the focal plane is located between the eye and field lenses inside the eyepiece and is hence not accessible.

在惠更斯目镜，焦平面的位置在眼睛和在目镜内的场透镜之间，是不容易接近的位置。

Using the K20 eyepiece included as standard equipment, about 45x magnification, it's easy to see the Andromeda Galaxy and its smaller satellite galaxy M32. When compared to 60mm refractors, the Powerseeker 114 brings out much more detail in the Orion Nebula, reveals many more stars in Perseus' Double Cluster and even brings out a few individual stars in globular clusters like M13. Saturn looks quite small at 45x with the K20 eyepiece, but using my own 7.5mm eyepiece (120x) I can easily detect the shadow cast by the planet on the rings, and even glimpse the ring's Cassini Division. When the mirrors are properly lined up or "collimated," the images are reasonably sharp up to magnifications of 225x.

使用标准配件中的K20 目镜，可以得到45倍放大率，这时候很容易看到仙女座星系，还有较小的星系M32；和60毫米口径的折射望远镜相比，114 EQ可以看清更多猎户座星云的细节；瞄准英仙座双星团，看到的星体数量更多，显得更加壮丽；对于球状星团，比如M13，甚至可以显出其中少数独立的恒星；在K20 目镜下（放大45倍）的土星显得相当小，但换成我自己的7.5毫米焦距的目镜(得到120倍)，可以轻松的看到光环在土星上的投影，甚至可以瞥见土星光环内的卡西尼缝隙。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。