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。
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。
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。
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。
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。
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。
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。
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。
In this paper three-dimensional object field can be transformed into three-dimensional image field by the 4f Fourier lens system according to the theory and experiment.
本文从理论和实验上应用4F富里叶变换透镜系统，把三维物场转换为三维象场。
Measuring the focal lengths of thin lens by means of object distance and image distance is a commonly utilized method in geometric optics.
利用物距、像距法测量薄透镜的焦度是几何光学中最常用的方法。
The relationships between images of near and far objects with camera lens and field of view and object distance and the image ratio are researched.
根据光学透镜成像原理，推导近端和远端物像与相机焦距、视角和物距的关系式及其像比，借此控制相机视图中远近两端物像的形状反差。
We consider that the digital image acquired by 20x object lens is suitable to be the virtual slide.
认为20倍物镜采集的数码图像比较适合作虚拟切片。
We consider that the digital image acquired by 20x object lens is suitable to be the virtual slide.
认为20倍物镜采集的数码图像比较适合作虚拟切片。
应用推荐