[BillP]

Neat idea. Hope you can make it work. Just be careful of the following rules:

<R33> No devices or decorations are permitted on the ROBOT that are intended to jam or interfere with the operation of the vision system (i.e. changing ROBOT color to confuse opponent’s vision system).

<R46> Items specifically PROHIBITED from use include:
..
..
- Lasers of any type.

Even though it may not be your intent, I can see your idea being interpreted as a violation of R33.

I suggest you post it to the Q/A

Good luck