Blu-ray laser pointer

Alex, don't leave us hanging, please post a review!

And congratulations on your new laser!

Yes in 1-3 days i will post it.

i think that is a good deal for a laser, professionaly made in a CNI like case

is 3-4mm dot sise @ 10m= 0,4mRad-0,3mRad?

wickedALEX said:

Hi, I have just bought a very cool blu-ray laser form ebay (

Has any ather also this laser? If yes, is it good?
I will make an review wenn it arrives.

Click to expand...

I brought one from there as well i got the 10mw blue laser for £100

wickedALEX said:

is 3-4mm dot sise @ 10m= 0,4mRad-0,3mRad?

Click to expand...

To calculate the divergence, you need to know the diameter of the beam at the apperture, and the diameter of the beam at a certain distance.
The further away you measure, the better, because it will reduce the mistakes you make.

One data point is not enough.



4mm is great, it means it is well focused. The dot is hardly larger than the beam diameter. But it's a diode laser, and these are not as hard to focus as DPSS lasers.