Not that I haven't thought about measuring it myself but I don't have a micrometer. That part I didn't understand the focal length of measuring I'm not sure how that's done
I guess the easiest way to put this without coming off like an jerk is I don't need a discussion on whether the milliwatts were exact or whether the acrylic lens should have burnt out or not. The only thing I'm asking for and that nobody thus far has been able to provide is what size lens I need...
And the lens that's in it now has burns on it from just the few times I have had to use it to show someone what's going on with it. So wrong lense means glass or not it will burn.
The problem is I don't know what size lens I need for it and I don't really feel like buying 10 different lenses to find the one that will fit properly.
Okay so I'm still relatively new to the hobby of lasers don't know how to build them or anything yet. I bought this laser pointer from AliExpress and the lens that was in it quickly burned out I bought a lens on Amazon and it didn't quite fit the bean comes out sideways as if it was slanted...