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Hey all, On these laser modules you can find on eBay, that come with the driver board with a tiny potentiometer on them to adjust the power, if you were to unscrew the focus lense so all you have is the diode and it’s main lense and the light coming off of it is diffuser and blurry (no focused...

I’ve been curious about the differences between single mode lasers and multimode but a search brings up technical details mostly regarding fiber optics. i was wondering more about laser pointers and if you can easily tell if you have a single or multimode. I assume my < 100mw greens must be...

Hey All, Can you confirm that my testing for IR leakage from two green laser pointers is correct and I have no leakage? I bought a cheap kids digital camera that seems to not have an IR filter. I confirmed this by pointing some IR remotes at it as shown here: Here is the camera: Heres the...

Hello, I was wondering if the power drops as the laser is on. I have a green laser pen that’s probably around 50 - 100 mW and I’m trying to find out how much power it does have without a power meter. So I was popping black balloons and gradually increasing the distance fro balloon to laser...