透镜空间是数学中考虑的拓扑空间的一个例子。该术语通常是指特定类型的三维多面体,但也可以定义为更高的维度。 在三维多面体的情况下,透镜空间可以通过将两个实心圆弧通过其边界的同态粘合在一起而被可视化。通常,如上所述,三球(3-sphere)以及S2×S1,因为它们是三维的,所以两者都可以被计算。
作为例子,这个球面代表了恒星或其他质量附近的空间是怎样弯曲的-光通过这个扭曲空间所引起的弯曲称为引力透镜效应。
The sphere, for instance, represents how space is bent around a star or other mass - light passing through this warped space bends in an effect called gravitational lensing.
更好的估计和焦距的透镜畸变能获得网格定位准确在尽可能多的图像尽可能的空间。
Better estimates of lens distortion and focal length will be obtained if the grid is positioned accurately over as much of the image space as possible.
对于我来说,这个私人空间只是另一所陌生的高楼大厦,是另一个苛刻的同样带有偏见的透镜,透过它来了解我自己。
For me, at least, the closet emerged as another strange edifice, another harsh, warped, and dichotomous lens through which to understand myself.
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