Can the light emitted by the 473 nm blue laser pointer ignite?
Observe the starry sky with a relatively bright laser pointer. Please be careful not to let the green laser pointer beam directly enter your eyes, and make sure to keep it out of the reach of children. This is a high-quality product, so please be careful not to hit it! Lidar is a comprehensive photoelectric detection and measurement system. Compared with conventional radars, lidars can provide high-resolution geometric, distance, and velocity images of radiation intensity. Initially, they were mainly used in the military field. Now, this laser pointer technology is gradually penetrating the consumer market. Scattered birds: There are too many potential safety issues for astronomical observation of laser-directed birds, and because of the wide spectators, low-power beams and the correct type of laser are not available.. It is also possible that the beam accidentally falls on or near the aircraft. Many countries/regions are illegal. Finally, certain species of birds may only be temporarily repelled by the laser. Within minutes or days, research shows that they will be back.
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Laser diodes have similar characteristics to LEDs. If they are directly connected to the power supply without adding resistance, the power supply voltage will be applied as it is, and as much current as possible will be taken away and damaged. To prevent this, add a driver to control the resistance and current, but the resistance and driver will take over the part higher than the voltage required by the strongest laser pointer, and the laser diode will work at a constant voltage. And since it tries to change all the current flowing into light, if the current exceeds the rated value of the diode, it will be damaged.
2021-11-26 11:56:14
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