Tag Archives: power
Buy Laser Pointers Online In Any Color and Any Power
Now that the world of lasers has expanded so drastically over the past few years, you can buy laser pointers in just about every variety of output power and beam color frequency. The real concern is ensuring that you’re going with a laser that suits your specific needs as well as offer a certain level [...]
1W Blue Laser Pointers Finally Here – High Power and Cheap to Buy
With all of the buzz surrounding the latest 1W blue laser pointers that you can finally buy online for nice and cheap, the question now really falls into which is the best blue laser? You can’t find 1,000mW in a hand held form of a blue laser just anywhere. Quality manufacturing at this level is [...]
Cheap Burning Lasers – How Much Power Do You Need For A Laser Pointer To Burn?
There are so many different lasers out there and a lot of different enthusiasts like to have a laser pointer that has the ability to burn things, such as, popping black balloons, lighting black matches, or cutting black electrical tape. But how much power (mW) do you need in order to be able to do [...]
A small laser used as a pointer produces a beam of red light 7 mm in diameter, and has a power output of 8 mil?
A small laser used as a pointer produces a beam of red light 7 mm in diameter, and has a power output of 8 milliwatts. What is the magnitude of the electric field in the laser beam? The intensity of the beam I = P/A = 8.0×10^-3W/(pi*r^2) = 8.0×10^-3/(pi*(3.5×10^-3)^2) = 208W/m^2 The intensity is also [...]