5/04/2010

Laser Pointer Pen — Logo Fashion

The advances in laser technology application over the past few decades had made people wonder what life would be like if we had not discovered the beauty of the process. “Light Amplification by Stimulated Emission of Radiation” is a process which is now known as Laser. We can find laser in multitude of consumer products such as printer, scanner, video CD, medical equipment, laser pointer, etc. Laser has not surprisingly become our faithful servant just like pen and pencil. The use of laser pointer for teaching and presentation is very much a routine. However, how many users are aware of the potential problems associated with its use?

The laser pointer is the ultimate in style for any presentation or lecture. True 18k gold plating gives this green laser pointer an unforgettable shine, and the laser itself is as impressive and reliable as any of our regular Lyra series pointers. The highly focused green beam will be visible against projection or HDTV screens where other less powerful lasers can get washed out. This special limited edition laser makes a great gift for the person on your list who enjoys a little bit of flash in their wardrobe and wants their accessories to look as good as they do!


Just pressing one button, a presenter can clearly pinpoint to the audience the message on the presentation slide which is many meters away. The highly focused light beam generated by the laser pointer can travel a long distance without diverging and create a bright spot on the surface it illuminates. Since the beam does not diverge, it conserves very much all of its energy after leaving the barrel and before hitting the target.



Conventional laser pointer usually comes with a lo
w-powered red laser. The laser beam of the pointer is generated by a laser diode which produces the red wavelength. Since the power of the laser beam is relatively low, proper use of the pointer will not normally cause any safety concerns. Recently, a more attractive green laser pointer is available in the market. The green laser pointer has a definite advantage over the red as human eyes’ response to the green wavelength is far more sensitive than the red. The green dot appears much brighter to the audience than the red dot. However, the laser diode which produces the green wavelength is not commonly available and it takes a complicated set-up to generate the green beam. With the set-up, the power of the green laser pointer can easily go over 100mW, whereas, the power of the conventional red pointer is normally less than 5 mW.

There is no shortage of video clippings in the internet showing what a powerful green laser pointer can do and it needs no further illustration about the damages a green laser point can inflict to our eyes and skin. With the growing popularity of using green laser pointer in the classroom settings, users should pay more attention to the hazards associated with the use of green laser pointer. To ensure safe use of the green laser pointer, user should not use any green laser pointer which has a power greater than 5 mW and as a habit, never point the beam at anyone. Certainly, the use of high-powered green laser under research settings is common but use it in the classroom setting is far too risky. The use of high-powered green laser pointer for presentation and classroom teaching should be strictly prohibited.

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