In our daily life, the most commonly connected laser gadget we can see is just the laser pointer. This kind of laser gadget is very popular and practical tool for presentation and projection. There are always a wide variety of laser pointers. According to different color light emitting, laser pointer always gets different functions in use. For instance, red laser pointer is the most commonly used laser with quite low price. It is very common and easily available. It is mainly used in lecture, speech, education etc.
green laser pointer
Green laser pointer always projects very visible and bright green color light from 532nm green laser diode. It is also called stargazer, which is a favorite gadget for those of astronomers and laser amateurs. In dark sky at night, this astronomy green laser pointer can always reach out for miles far away. It is always being used by astronomers to project a clearly visible and bright green laser beam for stargazing, pointing and celestial objects at night. In addition, green laser pointer is also a super wonderful projector in museum, various exhibition, travel, forest and camping etc.
Blue violet laser pointer emits not very bright laser light in very charming and attractive blue violet color. This is a very special laser gadget, which is mainly used for money detection, and inspection of chemical products.
Owing to various kinds of possible application brought by laser pointers in our daily life, people have gradually neglected potential dangers brought by lasers. At the same time, many manufacturers of laser pointers have also focused on selling laser pointers on toy markets. This is very dangerous behaviors once this kind of laser pointers is being owned and played by children. Most of the time, children have few information about potential dangers of laser pointers. It is very dangerous thing for child to own a laser pointer without any possible laser safety knowledge.
Most people should feel that it is very wonderful and cool thing to pop balloon with a high power laser pointer. For instance, a 200mW green laser pointer can burn balloons in less than 1 second. What we can see from laser pointer is only surface dangers, but its real harm is far larger than we can expect.
When users are pointing laser pointers without any reasonable protection of eyes, the powerful laser beam might damage retina seriously. Even a short time exposure to powerful laser beam might seriously hurt retina, or even lead to blind. The higher the output power of laser pointer, the most dangerous it will be. Sometimes the danger brought by laser pointer cannot be measured. In order to avoid any possible dangers brought in your life, anyone of child should be perfectly educated and keep far away from laser pointers. Whatever kind of operating occasions, laser pointer should be used only as a presentation tool, but never a toy.
alignmentlaser 