Htpow

The knowledge of laser pointers you must konw!

More recently, even brighter burning laser have been developed that produce green light at 532 nm. This newer technology uses a frequency-doubled Neodymium:YAG laser with a blocked infrared component to produce the light. Since the human eye is about 50 times more sensitive to green light at 532 nm than to red light at 640 nm, the green laser beams appear to be very much brighter when in reality they are at about the same output power as the red/orange laser beams. An advantage of the green laser pointers is that the beam itself can be seen in the air and not just the spot on the target hit by the beam.

 

Laser Pointer have received a great deal of attention in the news media when they have been misused and they continue to raise safety concerns regarding the optical hazards involved when using one. However, they are very safe when used for their intended purpose which is often as an aid in oral presentations and similar applications.

Products that use laser energy come in many sizes, shapes and forms. What they have in common is a laser which stores energy from a source, such as, an electrical discharge, chemical reaction or powerful optical illumination that releases the energy as light.

Do not point a 200mw Green Laser at shiny/mirror-like surfaces like polished metal or glass.The reflected beam can hit you or someone else in the eye. 

Ensure that the laser is inactivated (the button is not pressed) when facing an audience during a presentation. It should only be activated when facing the screen or board. 

In summary, laser pointers are very useful tools but they must always be used responsibly. If you have any questions about laser pointer , just google "htpow".