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Laser Pointers 

Laser Pointers 


Laser Pointer

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Lasers Wikipedia

color Frequency wavelength
violet 668 - 789 THz 380-450nm
blue 631 - 668 THz 450-475nm
cyan 606 - 630 THz 476-495nm
green 526 - 606 THz 495-570nm
yellow 508 - 526 THz 570-590nm
orange 484 - 508 THz 590-620nm
red 400 - 484 THz 620-750nm
Flashlight type of brightest flashlight, shaped like a normal flashlight, most use lithium batteries. With the laser pointer is different from larger and more convenient to heat and into the module, power is greater than the laser pointers, power, ranging from the tens to hundreds of mW, some even up to 1000mW (1W) or more. As part of the power of the laser flashlight more than 500mW, to industrial and laboratory grade (IV-class), so need to use extra care, it is best to wear safety glasses, but also to avoid laser direct to the skin (the laser can cause skin cancer), that's a easy Combustion products, but also to a safe place to prevent children get.