A laser pointer is designed to highlight something that is being pointed at and it makes a small dot on whatever it is focused on. What is interesting is that the laser beam is not visible when viewed from the side, but it becomes visible due to dust in the air. This is not the case when using a green laser pointer.
Green lasers are now the most commonly purchased and most exciting pointers on the market. They are more complicated than the red counterparts as the green ray is generated indirectly. The green lasers use pulse or quasi-continuous waves which reduce cooling problems and also prolong the battery life of the device.
Since diode laser modules have become cheaper to produce, it opened an exciting avenue for infrared pumped frequency doubled laser pointers to be manufactured in colors such as green, violet and blue. It also has an extremely visible power and the beam is clearly visible at night.
These laser pointers are legalized in most countries for the purpose of pointing as it is under the power of five mega watts. Manufacturers use lithium triborate instead of potassium titanyl phosphate to double the higher power lasers. They are also the most common diode pumped solid state frequency-doubled (DPSSFD) lasers on the market.
This laser is clearly visible at night and astronomers use them to point out stars and constellations. It is significantly brighter than the red lasers. Figures show that it is between fifty and sixty times brighter than any other laser devices.
Many other uses of the green laser pointer include bird watching, hiking, tour guides use them to guide their group through explanations and tales of history, construction engineers use them to pinpoint areas during inspections, during camping one can use it to point towards nightlife and lastly, they can be used for the more traditional purpose of professional presentations.
