| 摘要 |
A light or laser beam analyzer, using an imaging formation device such as a CCD video camera is equipped with an attenuating controllable filter or electronic shutter. The incoming beam is imaged several consecutive images each with a different attenuation and the spatial power level distribution on the detector's surface is digitized and transmitted to a host computer for further processing. The host computer will present the power distribution and calculate the beam's profile and the beam's shape.
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