White colour on my 445nm laser

[Herby]

Hi all,

My laser is fairly new and I haven't been playing with it much lately. I turned it on for the first time yesterday and I noticed a pinkish/white patch on the corner of the blue dot. Anybody know what the cause of this is?

Sorry my camera couldn't pick up the colour on the laser.

 

[Sigurthr]

What surface was it being pointed on? White effects from blue lasers is usually due to fluorescence of the target.

 

[Things]

Could also be parts of the die fluorescing. 405nm lasers are very well known for this, and their dies sometimes glow yellow. Wouldn't surprise me if 445nm lasers showed a similar artifact.