用CCD测量光斑可以及时获得光斑的二维扫描结果。
Using CCD to measure the beam spot can gain the two-dimensional scanned result in a real-time manager.
由于本方法不需要测量光斑的直径，避开了光斑直径不易测量准确的难题。
Because this method does not require the measurement light spot diameter, it avoids the problem that the light spot diameter is difficult to be accurately measured.
测量红外光斑在物理上和技术上都有很重要的意义。
Measurement of IR optical spot is of great importance to physics and technology.
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