| 释义 |
- 工作距离：在光学、显微镜等领域中，指物体与成像设备之间的距离，通常用于描述成像设备的性能。
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Two months before he died, newspapers were reporting that he was working on a "death ray," and that he had "killed a rat with an intricate device at a distance of three feet". 在他去世的两个月前，报纸报道称他正在研究“死亡射线”，并“用一个复杂的装置在三英尺外杀死了一只老鼠”。 - 2
If you know the FOV, sensor size, and working distance, you can compute the focal length of the lens you need using the following formula. 如果你知道视野FOV，感应器大小，和工作距离，你能用以下之方程序去计算你所需之镜头的焦距。 - 3
A lens is primarily defined by its focal length. Figure 4 illustrates the relationship between the focal length of the lens, field of view, sensor size, and working distance. 一个镜头的基础定义是其焦距，图4图示出镜头焦距，视野，感应器大小，和工作距离间之关系。
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