Whether the led screen is visible when the laser pointer shines on it
The red laser pointer should be used, because the LED display is the red font, so the red will be absorbed when the laser pointer is projected on the display, and the laser can not reflect back, so it is not clear. LED and LCD screen to use large power green laser indication, high power green laser pointer will be better than the green laser pointer. The LED and LCD screen should use a large power green laser indicating 50MW green laser flashlight within 10 meters, and 100MW green laser flashlight within 20-30 meters.
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Therefore, a 100 MW green laser is much brighter than a 100 MW blue, red or purple laser. In addition, since the repellent is completed during the day, it requires a high brightness laser pointer, otherwise it will not affect them much. When a bright laser beam hits a flock of geese, only one of them needs to startle to signal that the whole flock is fleeing. This means you don't have to cover the whole flock. Bright laser beams hit birds they don't know, so they instinctively run away, which spooks the birds.
2021-12-07 11:49:29
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