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短焦距物镜 [duǎn jiāo jù wù jìng]
[摄] short-focus objective
- 其摄像物镜为大视场、短焦距的广角镜头，图像存在严重的畸变。
Because wide-field lens are adopted in MEE, output images have serious distortion. - 复合显微镜包括两个短焦距凸透镜，即位于镜筒两端的物镜和目镜。
The compound microscope consists of two convex lenses with short focal length, the objective and eyepiece lenses, fitted at opposite ends of a tube. - 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.
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