We have determined that, under the right circumstances, a laser pointer can be focused through a lens to produce a more powerful beam. We've also established that a high-powered laser can burn through a person's eye and melt their brain. But how big is this powerful laser pointer? Pretty big, according to Rebecca Thompson of the American Physical Society. If users are extremely cautious about using blue and yellow green laser pointer these devices are often powerful enough to cause serious eye damage, even on brief contact. When using laser Pointers of any color, keep in mind that 5 mW output is considered dangerous. As a reference, users can consider the following table, which gives the possible hazards of different types of lasers. The green laser designator is perfect for stargazing because the beam of light travels from the laser designator all the way to the star it is pointing at. If the star were an aircraft, there would be no risk of distracting the pilot.
With laser Pointers available in several different colors, these gadgets can be featured in spectacular high powered laser shows hosted by whole families at home. Putting on some music can help participants get into the right mood, and turning off the lights is a must. Laser Pointers are small hand-held devices that shoot a very focused beam of light. Although the total beam power may be low, focusing this power on a small point produces a very high intensity point. Laser Pointers are often used by professors and teachers as presentation AIDS. A low-power laser designator is sufficient for this purpose. Powerful lasers can shine light on the night sky and are used by astronomers to look at stars and constellations. Some researchers or scientists can also use them.