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US5523837A Beam stealer laser power meter 失效
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Beam stealer laser power meter
摘要:
An essentially non-intrusive laser power meter is described which is dependent on the reflection of a minor fraction of energy from a laser beam. A small beam splitter positioned on the periphery of the laser beam directs a small amount of the beam's reflected energy to a silicon photodiode. The output signal from the photodiode is then sent to a meter readout to indicate the beam energy.
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