So i ran my 9mm 445nm just above threshold from a lion battery and noticed cyan light

[joeyss]

when i shined it through a 600line grating there was what looked like cyan light on the wall. I saw the Post on PL about this. My laser normally needs 6-9v for the driver set to 2.4a.

I will try to get a picture. The battery was at 3.89 and it was below laser threshold and it proced a cyan line from the lens making a line. Anyone else ever get this?

 

[Atomicrox]

Are you sure it's an actual laser line? most diodes display broadband LED emission near threshold, which probably includes cyan for 445nm...

 

[The Lightning Stalker]

Laser emission will be a distinct bright
dot. Are you saying there is more than one
dot, or is there just a smeary cyan line
area?

600 lines isn't much. It will be pretty
hard to make out with so few lines. That
grating is better suited to red and IR.