Laser pointers

Laser pointers

Laser Pointers

 

Hello guys and gals, how we all doing today? I would like to thank you all for coming back to visit my computers and home electronics blog, I try really hard on this so your continued support means a lot. Anyways, on to what you all came here to read about today: laser pointers. I don’t mean the silly $3 tiny red laser pointer you can get at the dollar store with a bunch of different caps to make shapes with. Instead I am talking about 445 nanometer and 525 nanometer wavelength lasers, or green and blue as most people refer to them as. The laser (light amplification by stimulated emission of radiation)  is caused by a small battery sending power to a laser diode and the diode emitting a low powered very narrow laser beam of light that is usually used to highlight something. I have a green laser pointer at home, and use it anytime I need a light at night. In a dark room, this laser will light things up just as good as most keychain sized flashlights. But the real fun is the blue laser.

 

Blue Laser pointers are made by emitting a shorter wavelength of light. In 2006, Japanese company Nichia controlled 80% of the blue laser on the market, a by product of the lasers being used for mass storage devices. Since then however, mass production of laser drives for commercial items like laser projectors has driven down the price of laser pointers, and you can now find a blue laser online for as low as $25. It may be difficult finding one that will ship to you with no hassles however, as many countries have import restrictions on lasers of this short wavelength. Do you guys own any blue, green, or violet lasers? Let me know how you use them in the comments! Have a great week everyone!



laser pen