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Laser Power Rating and Class of the Laser Line Probe
The LLP uses a 660 nm laser diode capable of 35 mW output power and must be labeled as such. This is then trimmed to a lower power via electronics inside the laser body. We further restrict the laser output power by pulsing the laser at a frequency of 30Hz (frames per second). The laser body output power is then reduced through a collimator, then a rod lens, then a physical aperture. After that, the laser output power is a function of distance, pulse rate and size of area you measure. For safety purposes, the area is defined as the nominal size of a pupil.
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Class 2 laser classification requires that the output power measured 100mm away from the source should be less than 1mW. Since the LLPs laser power is attenuated by the electronics and optics, our output power 100mm from the source is much less than 1 mW.
Keywords: llp, laser line probe, scanarm, class ii, class 2