Well actually diodes are starting to push past that boundary. Nichia can probably produce any WL between 400nm and 488nm. Its a bit tougher producing DPSS in such a range, but in the green-orange gap DPSS is king, as well as decent beams and divergence. I would either recommend him making one or get a neat looking flashlight to stick one in, and have someone make a heatsink for it. I am doing the latter :shhh: