Hi Gary
Interesting yes hes got that mm at least distance between the uv led and the glow paper ..again a lot of computer power and electronics .
I am on a bit of a brake as i broke my laser i hooked it up to my power supply instead of the pwm circuit by mistake and it was ....!
i have a 3 week wait till the next laser comes from china ...i have infact got 3 coming .....just in case its the kiss of death in my hands !
Before it went to the great blue laser god in the sky i tested the new orange glow powder tin it needs a little more light than the paint but it lasts much longer and there a nice contrast between the yellow light and the dark orange .....only thing it looks like a rusty tin so not as pretty.
On the backing colour the glow paint should be painted on i found this web site and its interesting as it has been tested .
http://www.waynesthisandthat.com/glow.htm
It doesn't work as well but if you charge the paint with uv light say with just a few uv leds and use a red laser you could do it in reverse and have a red laser doing the work ,i only have 1mw so it doesn't dechange the uv at high speeds due to that ...but its another way of doing it .
So have a bit of a wait till i can test it again. in the mean time i will work on sync side of it ,when i did strobe test to see the line gaps the lines were a bit wobbly .