I was looking around for a way to quickly put together some adjustable bounce mirrors and came up with the following.
I already had some 1″ square front surface mirrors, so I went out and bought some brass hinges and magnets from a local supermarket. Using pliers I pinched the hinges so that they no longer turned freely.
Finally I fixed the mirrors to the hinges, and the hinges to the magnets using some foam tape.
I then attached the mirrors to a steel beam – the magnets let you turn the mirrors, and the hinges let you adjust the angle. They work reasonably well – I used them in the latest (and almost certainly the last) laser harp I built.
This is the first time I’ve tried a 445nm laser – this one is just under 1W. Visibility is not quite the as high as with the 532nm – but that’s to be expected. Since I was using the small bounce mirrors I rewrote the open/close effect to better suit them.
I think I might need thicker gloves, I can certainly feel the laser through the thin-walled ones I’ve been using.