Doing this, i will increase the beam diameter, not the divergence.. right? I prefer to increase the divergence to avoid loosing power on the scanners (the mirrors are 5mm wide)
I think that both green and blue have IR filter. If i watch in the output hole i can see a light cyan filter, that is very similar to an ir filters that i found in an old webcam.
If i don't find the appropriate lenses soon, i will not do audience scanning.