[Renato1 (Renato)]

Originally Posted by el_draco

You Tube has examples:
https://www.youtube.com/watch?v=NhH76mr-AQs

Good idea but I live in a dark site so not really an issue for me.

Thanks - but he used a 120mW laser.

Which was why I found the next clip about how to turn a 5mW laser into a 100mW laser very interesting.(unless it's an April Fools type clip).
https://www.youtube.com/watch?v=Aw0qvBPDzMM
Cheers,
Renato