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透镜

na.【物】lens; optical lens
网络Lenses; Fresnel lens; Lenticular Lens

透镜

英-汉网络释义

透镜

na.

1.【物】lens; optical lens

1

and a fourth lens formed of a biconcave lens having aspheric surfaces on both sides and an inflection point on an upper aspheric surface .

第四透镜，由双凹透镜形成，在两侧上具有非球面表面，在非球面表面上具有拐点。

3

But gravitational lensing had never before been used in such a precise way .

但是引力透镜还从未以如此精确的方法被使用过。

4

He took the glass and focused the sun on some dried wood .

他拿出透镜，然后把太阳光聚焦在一些干木材上。

5

In measuring the focal distance of lens , the experimental accuracy is often affected by the poor quality in the formation of images.

在测量透镜焦距时，往往由于成像质量差而影响实验的精度。

7

Astronomers measure how much dark matter lies in galaxies by a fluke of physics called gravitational lensing .

天文学家通过一种叫做引力透镜效应的物理现象来测算星系中暗物质的质量。

8

Some telescopes do not use a lens at the front . They use a curved mirror at the back. A curved mirror is better than a lens in some ways.

一些望远镜的前部不用透镜，而在后面装上一个曲面镜，曲面镜在某些方面要比透镜好。

11

Spot diameters of just a few thousands of an inch can readily be attained with convenient short focal length lenses .

用普通的短焦距透镜不难得到直径只有几十微米的光点。

14

As a classical experiment , Newton ring experiment is usually used in measuring the radius of curvature of a lens .

牛顿环实验是大学物理实验中的一个基本实验，目前的实验只是用于测透镜曲率半径。

15

One of the principal limitations of these lenses is abundant chromatic aberration that prohibits broadband use without design compensation .

用作透镜，在原理上色差非常大，若不在设计上做出补偿，则会限制其在宽波段上使用。

16

Such a material , Veselago determined , could form a superlens: a flat sheet capable of focusing light even better than curved lenses do.

维斯赖戈确定的这种的材料，可能形成一种完美透镜：一块平板，对光的聚焦效果比传统的曲面透镜更好。

17

A convex lens can be used to concentrate the sun 's ray and thus burn a hole in a piece of paper .

凸透镜可以用来聚集太阳光，将一张纸片烧穿一个洞。

19

Looking down from above , one will see a series of light and dark rings centered on where the lens touches the surface .

从上面俯视，人们将会透镜接触表面的中心看到一系列的光和黑环。

20

A typical photodetector is made of a silicon chip a few millimetres across onto which light is focused by a small lens .

经典的光电探测器是使用透镜将光线聚焦在一个几毫米外的硅片上。

22

Firstly , the bottle and water form a lens which can focus the light into a thin line, which means that a very bright light is not necessary.

第一，由瓶子和水组成的透镜可以让灯光聚焦成一束细光，也就是说我们不需要用到非常强烈的光。

23

and heating the at least one end of the at least one sheet of optically transparent member segments to form lens surfaces thereon.

以及加热所述至少一片光学透明部件段的至少一端，以在其上形成透镜面。

25

How the ancient ice lenses were "cut " ? There is no definite conclusion yet up to this day.

古代的冰透镜是如何 “削 ”出来的？历史上没有定论。

26

and the lenses are arranged from small to big , the back of each lens is provided with a trigger capable of triggering different ring values.

透镜是由小到大排列，每个透镜后都按有一个触发器，可以触发不同的环数。

27

when the velocity of the lens continued to drop off, a blank refection occurred to the top of the section .

当透镜状砂体内部速度继续降低时，其顶部出现空白反射特征。

28

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