然后用一束激光来测量这个摆动的位移，并由此生成一系列此样本的二维影像，再由这个生成其三维影像。

That displacement is measured with a laser beam to create a series of 2-d images of the sample, which are combined to generate a 3-d image.

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借助此方法，设备在0.5米远的地方就能够清晰地扫描一美分硬币正面“错落有致的花纹（林肯头像）”，并创建其三维图像，而且分辨率达到微米级。

With this method, the team used the device to scan and create a 3-D image of the "hills and valleys" on the front face of a U. S. penny -- with micron-level resolution -- from half ameter away.

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