A gravitational lens is formed when light is bent by a massive object.
引力透镜现象就是光被巨大质量物体弯曲的现象。
Eventually, more advanced versions of the lens could be used to provide a wealth of information, such as virtual captions scrolling beneath every person or object you see.
最终，可以用更先进的隐形眼镜来提供丰富的信息，比如在你看到的每个人或每样东西下面滚动显示一些虚拟字幕。
If a large object passes in front of a more distant background star, it may act as a lens, bending and distorting the light of that star so that it may appear to brighten significantly.
如果一个体积足够大的星体从一个距离很远的恒星前面经过，那么会产生透镜效果，使那个恒星的光线产生弯曲或变形，这样就能很清楚的看到这个星体。
Physics An optically formed duplicate, counterpart, or other representative reproduction of an object, especially an optical reproduction of an object formed by a lens or mirror.
镜像，映像：物体由于光学原因形成的复制品、对应物或其它形式的代表物，尤指通过透镜或镜子而形成的视觉复制品。
Imagine that we have some sort of Lens system which forms an image of an extended object.
设想我们有某种透镜系统，它对一个扩展物体成象。
If the objective lens is closer to the compact disk than the focal length of the object lens then the cylindrical lens creates an elliptical image on the photodetector array.
如果物镜与光盘之间的距离短于物镜的焦距，柱面透镜就会使在光电探测器阵列上的成像变成椭圆影像。
If the objective lens is closer to the compact disk than the focal length of the object lens, then the cylindrical lens creates an elliptical image on the photodetector array.
如果物镜与光盘之间的距离短于物镜的焦距，柱面透镜就会使在光电探测器阵列上的成像变成椭圆影像。
The structure ACTS as a magnifying glass that expands the image of an object placed within it, so that it can then be distinguished using a conventional microscope lens.
结构像放大镜可以放大放在其中的物质的图象，于传统的显微镜透镜有着显著的区别。
If the objective lens is further away from the compact disk than the focal length of the object lens then the cylindrical lens again creates an elliptical image on the photodetector array.
如果物镜与光盘之间的距离长于物镜的焦距，柱面透镜也会使在光电探测器阵列上的成像变成椭圆影像。
Distance the distance is the distance between the object and the front lens of the camera.
距离距离是前镜头相机的对象之间的距离。
Once you choose a lens whose focal length is closest to the focal length required by your imaging system, you need to adjust the working distance to get object under inspection in focus.
一旦你选择一个镜头其焦距是最接近于你成像系统所需之焦距，你需要调较工作距离去获取观察目标物的焦点。
The position of the image and the amplitude variation in the optical field are associated with the focus and the distance from the object to the front focal plane of the lens system.
象的空间位置和光场振幅的变化与透镜系统的焦距以及物体距焦平面的位置有关。
Alternatively, we can image that the incoming wave is diffracted by the object and the resulting diffracted wave is then diffracted again by the objective lens.
换一种方式，我们可以这样想象：入射波被物体反射，所得到的衍射波再一次受到物镜的衍射。
Lens reflections, in any case, are equivalent in size to the bright objects, or are smaller than the object.
镜头内的反光在任何情况下都只会等于或小于亮物的大小。
The working distance is the distance from the front of the lens to the object under inspection.
工作距离是由镜头前到观察目标物的距离。
It is shown that the geometrical optics model can not be used to describe the object-image transformation of Gaussian beam through the lens under the general case.
结果表明，在一般情况下，几何光学模型不能描述高斯光束经这种透镜的物像变换。
Because maximum field of view in telecentric systems directly relates to the lens aperture closest to the object, larger front lenses are necessary for larger fields of view.
由于在远心系统中最大视场直接关系到镜头的镜头的光圈到物体之间的距离，若需要大的视场就必须要有大尺寸的前置镜头。
One of these may be a zoom lens, which can focus off object far or near.
镜头之一为变焦镜头，可以拍近也可拍远。
All effects are visible in the display as the object is viewed through the camera lens.
所有作用是可看见的在显示因为对象被观看通过摄像机镜头。
Firstly, we take the primary stereoscopic picture of a dynamic and spontaneous fluorescence object by the linear lens array camera made by ourselves.
制作了动态自发光物体（蜡烛光）的体视彩虹全息图，并给出了实验结果。
Another principle illustrated by Figure 4 is that any object having edges that line up with the edges of the lens aperture will tend to be resolved to some degree.
图四阐明的另一个原理是任何物体，只要它有边缘与镜头光圈边缘对齐，那么它的形状就能在一定程度上可以辨别。
That massive object ACTS as a gravitational lens.
这种超级天体如同一个引力透镜。
It is shown that the transformation characteristics depend on optical beam power, the beam waist of incident beams, object distance and lens parameters.
结果表明，它的变换特性依赖于光功率、入射光束的束腰、物距以及透镜参数。
Grating is placed in image space of objective lens, and used as the shearing part. Light wave from reference object and measured object interfered at the image space.
它在成像物镜的像方空间放置光栅，利用光栅的衍射原理，使来自参考物和被测物的光波在像面发生干涉。
Then, it used second order polynomial to fit the Central Line of text line, and constructed the object function of lens distortion.
然后利用二次多项式模型拟合文本行的中心线，并建立径向失真校正的目标函数。
Each page presents an object, person or animal as seen through the X-ray lens, penetrating to the very core of physical matter.
每一页介绍一个对象，人或动物，通过X光透镜，渗透到物理问题的核心。
In the system two coded gratings are inversely imaged to each other by a lens, and the tested phase object is placed between and imaged onto an observation screen.
系统中两块编码光栅用透镜互相成倒像，被测物置于其间并且也用透镜成像于观察屏上。
The optical writing object lens of the laser direct writing device must be focused in spots by a focusing-servo mechanism.
在激光直接写入设备中需要有高分辨力的调焦伺服机构对光刻物镜进行调焦伺服。
The adverse projection measuring method reverse the position of object and image in the imaging system of lens, it overcome back focus length and resolution power limitation.
逆投影法颠倒镜头成像系统物和像的位置，克服了手机镜头后焦、像素等的限制。
The adverse projection measuring method reverse the position of object and image in the imaging system of lens, it overcome back focus length and resolution power limitation.
逆投影法颠倒镜头成像系统物和像的位置，克服了手机镜头后焦、像素等的限制。
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