Rechargeable laser pointer with long life
The power of 20mW to 50mW is more suitable, and the power of 50mW or more can feel particularly unassuming in dim indoor conditions. The main prize of the green laser pointer is related to its bandwidth and stability. The narrower the bandwidth, the more expensive it is, but the human eye cannot distinguish it. At this time, the bandwidth is less than 50mW, and the price of the laser pointer is 100 yuan lower. Relatively cheap portable laser points are sure to be good gifts for children, even if they don’t have cats or kittens to play with. Many children feel afraid or hesitate to be alone in the dark. Giving them a simple gadget, such as a green laser pointer, can help them overcome this irrational fear.
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In the case of a longer working distance that requires alignment work, it is best to choose a higher power laser pointer with a wavelength of 532nm for alignment. At longer working distances, the green laser pointer alignment always becomes more obvious, and a brighter green laser pointer line is generated. Its green laser pointer beam is more easily absorbed by the human eye. According to the precise alignment requirements, users only need to select the Laserpointershop alignment tool correctly to effectively obtain the best line alignment results. The structure of the red laser pointer is the simplest, and the reason is very simple, because the red high powered laser pointer is basically just a battery, relying on the energy of the diode. There is also a laser diode that produces a wavelength. The red laser pointer that appeared in the 1980s was a huge and heavy device worth hundreds of dollars; it was very small and very cheap. Astronomical refers to the stars. The laser beam emitted by the green laser will emit a very beautiful "green light" in the dark night sky, which is very spectacular across the air, so it is suitable for observing the stars at night to indicate the exact position of the stars. The power of this astronomical laser pointer is usually above 200mw.
2021-12-31 10:00:57
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