This is SO cool, but also extremely dangerous! You can call this guy crazy or a genius. Styropyro (that’s his handle) has built a lightsaber using a heavily upgraded 7W blue laser — it’s upto 7x times more powerful than your average laser. The beam doesn’t react like the “real” Starwars Lightsaber, but it’s strong enough to burn through wire and other household objects!
Kids … do not attempt this at home! Watch the video below …
“I’ve seen a few videos circulating the internet regarding homemade lightsabers, where one of the coolest designs I saw utilized a mini flamethrower. I figured I better show a video of my homebuilt version of the lightsaber…where my design uses a MASSIVE 7W blue laser. 😀
In terms of building a working lightsaber, the two main limiting factors are beam confinement and high energy density storage. With the amazing Li-Ion batteries that the scientists/engineers have developed, stupidly powerful handheld lasers can be built, just like this one here. The issue then becomes confinement, which doesn’t look possible any time soon with a device like this. Oh well, my attempt is still bright and light things on fire!!
My device uses a Nichia GaN laser diode, which was overdriven to 7W of output by running it at 4.6A with a couple high efficiency buck drivers in parallel. An anti-reflective coated glass lens focuses the beam, and the whole device is powered by two unprotected 18650 batteries in series.”
Source: YouTube
