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Visibility of continuous mode and pulse mode
Figure 1: Continuous mode. The LED and laser light up continuously, and
the oscilloscope will display a fixed frequency.
Figure 2: The pulse mode frequency is set to 1.97khz, so the rapid flicker
of the laser is invisible to the naked eye. But it shows up clearly on the
oscilloscope.
Figure 1: Mode 1 is continuous mode
Invisible pulse mode (2) is used in most laser machines or LEDs dedicated
to professionals. It has the disadvantage of producing background noise
associated with the pulse, which depends on each person's auditory
sensitivity, which is why we have also created a continuous mode so that
everyone can use our helmet.
Figure 2: Mode 2 is pulse mode
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