Introduction of Laser Pointer

A growing number of people have enthusiasm for the stars. The beautiful sky at night always makes human being intoxicated. The mankind will peer at the stars and identify their statuses, when you can not discern the stars only through your fingers. Under these circumstances, laser pointer comes into appearance.

Laser pointer consists of green laser pointer, red laser pointer and so on.

Green laser pointer is different from the ordinary red laser pointer, whose output brightness is much higher than the latter, that is, the green laser pointer of brightness is several times or more than that of the red laser pointer. When holding the green laser pointer to point the sky at night, you can find a bright green light penetrating the night sky. Astronomers are fascinated by the green laser pointer. Currently, green laser pointer pen is the most popular laser pointer all over the world. Green laser pointer pen of wavelength is 532nm, and the laser type is Class IIIA. Green laser pointer pen demands two batteries. Owing to its extraordinary light, the green laser pointer attacks the eyes to a relatively higher extent, that is, as the power increases on, the jeopardizing of it is more and more heavy. This also requires users to pay special attention to their security, avoiding the touch between the vulnerable sites like eyes and the light of green laser pointer. Users should also prevent the laser from entering into their eyes via reflection.

In that way, for astronomy fans, what style of green laser pointer is wonderful?

In my opinion, the laser pointer of power within 20mW to 50mW is more appropriate, because 50mW power of laser pointer has made you feel especially glaring in the dark conditions. In addition, the laser pointer of power consumption is generally larger. Therefore, in line with the principles of environmental protection and savings, a pair of excellent rechargeable batteries is also very necessary.

From what has been discussed above, we may safely draw the conclusion that the appearance of laser pointer makes people more delighted. And the green laser pointer of higher light determines it to be adopted widely in astronomy. Everything has merits and demerits, so we can not ignore of the disadvantages of green laser pointer. We should do our best to protect ourselves. I believe, with the development of economy, more advance laser pointer will be invented with less danger factors.