Laser classes

[mike666]

What is the main difference between a class IIIa, IIIb and IIIc?
I assume it's to do with the power output.

Is there a chart or something that shows the difference?

What class would my 670nm 5mW lasers come under?

Thanks.

 

[skylasers.net]

I think the link below will tell you everything you need to know about laser classifications and more...

http://en.wikipedia.org/wiki/Laser_safety

 

[mike666]

Thanks.

 

[rocketparrotlet]

Are you sure they are 670nm? That wouldn't be very visible. Common pointers are 650-660nm.

They would be Class IIIA pointers because a "5mW" laser has an output below 5mW but above 1mW.

-Mark

 

[mike666]

Are you sure they are 670nm?  That wouldn't be very visible.  Common pointers are 650-660nm.

Well I had a short discussion about that here: http://www.laserpointerforums.com/forums/YaBB.pl?num=1226336361

I am very certain that they are 670nm. They look a nice deep red in colour but are still bright too.
Read my post, linked to above, and you will see.

 

[rocketparrotlet]

Okay, thanks for the post. I just bought a cheapo red with terrible divergence, but it seems brighter than usual. I think it's below 650nm, like 645 or something. Maybe even lower than that. That's pretty cool that you have 670nm lasers, though!

-Mark