20mw laser pointer can also emit a powerful laser beam from Wallis Lucy's blog

The 20mw laser pointer provides a powerful Rechargeable Laser Pointer beam with an unusual star pattern. The design of the body is easy to carry, but the head of the device is reduced in many practical applications. In some cases, this laser pointer can provide entertainment. The laser pointer uses the laser as an educational tool. Since the length is determined by the length, you can also use PPT slides. For example, you can replace the pointer tool with such a direction, and you can specify the distance. Today, most red laser pointers, green and blue, are relatively cheap and expensive. However, it is still an indispensable laser in various situations in the scientific field. Recently, the mass production effect due to the activity of blue light, etc. seems to become cheaper, but the blue laser diode is still "the current situation is very expensive. .Just enjoy the light is one of the most fascinating lasers. You can’t see blue light like that.

The laser marking process is extremely flexible. You can use computer software to customize controls, patterns, text, etc. In addition, high powered laser marking provides offline (or independent) integration into the assembly line and works in conjunction with subsequent processes to reduce costs and improve quality, making it more convenient and effective. Coupled with the benefits of laser marking, more and more manufacturers use plastic laser marking machines for plastic marking processing.　The laser rangefinder illuminates the target with a laser beam and measures the distance from the time it reflects back to the target. At that time, in order to improve the measurement accuracy, hundreds of irradiations were performed in a short time of about 0.5 seconds. This also has the meaning of increasing the measurement certainty by increasing the number of shots, even when the laser beam is only irradiated once without hitting, for example when the target is small.

The light of the blue laser is very beautiful, but different from the green laser, even if the output is the same, it looks very dark, so if you want to enjoy a clear green light laser pointer, you should still buy a high-output blue laser... ... I hope it becomes more affordable sooner. There are laser pointers on the market now, but do you know what diameter you will irradiate when you irradiate, for example, 2 kilometers or 5 kilometers away? For commercial use, we may use something about 100mW, but we need to adjust the focus of the laser beam to use it.