Here is a picture of my Laser Harp v1 (framed version)
It is a framed Laser Harp I developed using and arduino, a green laser, lots of passion and googling!
If you want to build a Framed Laser Harp you can google for Stephen Hobley and you will find plenty of info about that..
Now if you want to make a Frameless Laser Harp like the one Jean Michel Jarre 's used to play Rendezvous 2 Live in concert at his Europe Tour 2011., it is a lot more difficult...
I am currently working on this project and almost done with it.
Since technology has developed so much it is now possible to build your own homemade DIY Frameless Laser Harp.
I saw a couple of adds on the internet selling Frameless Laser Harps for US$1.200,00 and up (only the controller and sensor part). Then I would have to buy an ILDA green laser projector also. And then pay around 100% more for import taxes on top of all this.
That´s when I decided to give it a try at building it myself!
Turns out Laser Harp v2 (unframed) is almost completed.
Bookmark this website, and come back soon as I will post the complete schematics and programing here so you will be able to make yourself one too (without being a technical geek).