Why is the green laser pointer more popular?
When astronomy enthusiasts use the laser pointer to point to the stars, they should be careful not to use the star pointer frequently or for a long time, so as not to hinder others from seeing the stars and taking pictures. For astronomical purposes, the 5000mW green laser is very dangerous and may cause an airplane crash. To avoid accidental injury in crowded public places, you should stop using laser pointers. Some high-power products have strong thermal effects and cannot be used continuously for a long time, especially semiconductor lasers that are sensitive to temperature. The human eye responds to different colors, and our insensitivity to color spikes is green. The green laser cannot be pointed at your eyes, and a very narrow beam can be seen over a long distance, which is used for night vision. This is why the red laser does not interfere with your night vision in astronomy.
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Usually, the high powered laser pointer stops at about 10 watts. It becomes very difficult to provide them with batteries, and they can overheat because the energy consumed in the device is more than the energy contained in the beam. Laser manufacturers sometimes claim an efficiency of 30% or higher, but in reality, an efficiency of 10% is typical. The average power laser is about 50 watts to about 1 kilowatt. They can cause severe skin burns at a distance and can even destroy small drones or long-range optical sensors. Not all lasers are suitable for astronomy and pointers. Precautions show that the green laser can guide the stars well at night. The blue light scattered by the atmosphere is ten times that of red light. The blue laser is easier to be seen by the human eye than the red laser. Since 532nm green is more sensitive, the human eye is more sensitive than blue and red lasers. The low-power green laser pointer is always the right choice for your astronomical research and pointing.
2021-11-10 12:04:38
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