Eventually someone - apparently - came out with a LARP
system!
Frankfurt saw the first units a couple of years ago, I'm sure about Claypaky presenting a concept light (with a huge front
lens) and at least another
producer as well.
I've seen a demo of this technology something like 3 years ago, it was pretty stunning to see the amount of light emitted by such a small source (althought at the time it was a prettty yellowish beam, almost useless to us).
The idea is that of having multiple arrays of blue
laser diodes collimating to the same
point , a wheel covered with different phosphors is than spinning extremely fast (to mix the different hues created by the different phosphors) to convert the blue to white.
The refresh rate is given by the wheel's speed, so it could be interesting to see how this performs with HD cams and slow motions / close
ups. Maybe the future will see versions with multiple wheels to increase such rate.
It is pretty scalable and - theorically - the efficiency of the
system is not affected by the rated
power. More diodes --> more light and more
current needed.
Compared to "normal" LEDs we are not in the solid state world anymore, but we anyway have a lot of motors and wheels moving around it should not be a big problem.