Make the cutting edge of technology work for you in a safe environment while using a green laser pointer. Insist on infra red filters to block invisible infra red rays which can damage the retina of the eyes. Secure the green laser pointer device with an interlocking key switch. Ensure that the diode is protected in a casing that is of good quality metal. Also check if there is a warranty of a minimum period of 90 days.
If you have joined an astronomy class and have to explain your observations of a particular constellation in a specific night sky, green laser pointer can be your equipment. Most students explain their project papers by making a powerpoint presentation before the class and faculty. But you want to do something different that will get you brownie points. The class agrees to an evening session under the night sky. You have to point out your observations and trace the movement of the stars. You can buy a portable hand held pen shaped (5mw) online for this purpose. green laser pointer's beam through the all glass lens can indicate and point out the stars many miles away. You then fix the pointer to a telescope so that the class can get a closer look at what you have been explaining. The unique presentation has made an impact, thanks to the. Of course make sure that you don't direct the beam, inadvertently, on any flying aircraft, as this can be punishable under the law. A green beam of a is much more visible than a red one, and can scare away any flying creatures like bats!
The pointer starts to get warm in your hand. It must be switched off for a while. Keep the green laser pointer in its case, after use. You also know that it should not be operated in extreme climactic conditions. Do not go for the cheaper versions as their manufacture may not have adhered to prescribed safety norms, and may also not last long. It should serve you well for at least 4000 hours of usage and should not burn out before this. Ensure that the manufacturer replaces the green laser pointer if a burn out occurs. Since the is of 5 mw of power, it is legal to use it in your state. This will be categorized under Class IIIa lasers and must come with a warning that the laser beam should not be directed at the eyes or looked into.
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09 Aug, 2011--
Source: http://goarticles.com/article/Make-an-effective-presentation-by-using-a-green-laser-pointer-to-get-your-point-across/5124302/
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