Is there a huge laser pointer?
In recent years, this huge range of green laser pointer has become a problem in public airspace. Crazy people repeatedly blind pilots with laser pointers when landing. This trend seems to continue in the football field. Under no circumstances should the extreme laser pointer be shot directly into the eyes because there is a risk of severe retinal burns or even blindness, especially the green variant. Therefore, always pay attention to common safety seals and use your laser pointer wisely. The safety of high-power laser pointers is a key issue that cannot be ignored. You need to use laser pointers safely because they can cause serious damage to your eyes. The most important thing to remember when using a laser pointer is to keep the beam away from your eyes and any other people who may be around you. This is especially important when using a laser pointer to see the stars at night.
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It means that the medium produced by the star spring is a semiconductor high powered laser. The various characteristics of the semiconductor are very sensitive to temperature. At lower temperatures, the laser pointer will not work. Then you only need to hand over the laser pointer for a while and let the temperature rise to Above 20 degrees, the pen will be able to work normally, if not, it may be in terms of battery replacement. The conversion efficiency of green light at 532nm is very low, less than 10%. For example, a 500mW infrared laser diode can provide a 50mW green laser pointer. The 200mW red laser pointer can achieve similar visual effects as the 20mW green laser pointer, and the power consumption of the two lasers is almost the same. However, the green laser pointer is much safer to use.
2021-12-31 09:59:41
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