A Laser Pointer - You Need It

In our modern society, many things have experienced great changes gradually. Take the travel as the example, in the past, the concept of travel is to enjoy the beautiful scenery and relax ourselves after a period of hard working. However, in recent, we may find that more and more people would like to choose some risky ones, such as exploration, camping and so on. All of them are full of dangers and risks. People need to go to primeval forest to realize this kind of travel. In this process, they need a light, such as flashlight, electric torch and something like that. But today, I want to introduce a kind of best light which is quite suitable for the exploration and camping. Its name is laser pointer, which plays a vital role during the forest, especially in the night.


Now, let us see some detailed information about laser pointer. Its function comes first. Its main function is lighting. In the night of forest, it can send out a beam of bright light and can let you know what is around you. As we all know, there are dangerous animals, such as snake, tiger or something like that. This kind of laser pointer may save your life at some moment, because it has a strong power and can send the light to the distant place.


Then, I want to introduce three types of this kind of laser pointer. The first one is red laser pointer. Its wavelength is between 650nm to 660nm and it is the earliest version and the cheapest one. Meanwhile, it belongs to semiconductor laser. Then, the green laser pointer. Its wavelength is 532nm and belongs to solid state laser. In addition, it has a very high visual degree. The last one is bluish violet laser pointer, whose wavelength is 405nm. It is close to ultraviolet light and can arouse fluorescence. Meanwhile, it has the function of checking bank note and belongs to semiconductor laser.


The three types that I have mentioned have their own characteristics and advantages. You can choose one from them. But I personally think you had better choose the green laser pointer, which has a much stronger light and more reasonable price. If you want to travel in some dangerous places, you need a green laser pointer most. But just because of its strong light, you should keep your eyes staying away with it, or it will damage your eyes.


Do you want to explore or go camping? If you do, please do not forget a laser pointer.