Laser Blue

Here we will introduce two types of blue laser: 445nm laser blue and 473nm laser blue.

Most powerful laser blue is this handheld burning laser blue

Laser blue has a wavelength of 445nm-450nm or 473nm.  The human eyes can see the differences between the 445nm laser blue and 473nm laser blue. The 445nm laser blue (or 450nm laser blue) has more violet feeling in the blue laser beam. It's between the 473nm laser blue and 405nm laser violet.  The 473nm laser blue is the older blue laser. 

Since the laser blue has a wavelength of 445nm or 473nm. The safety goggles, which absorb wavelengths from 370nm to 560nm, are also work for laser blue.  These laser blue goggle is almost the same to the green laser goggles
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