Doesn't Look Like Much But...

Wolfman29 · Apr 25, 2011

I know it doesn't look like much, but it's a lot cooler in real life. Taking an idea from someone else on this board, I got some Rustoleum paint from Home Depot, painted a board with it, and now, using my PHR laser, I can write with glow in the dark ink! Literally!

Just thought I would share... can't wait till I get a 12x to see that really work it's magic!

RA_pierce · Apr 25, 2011

Cool! I've been meaning to do this for a long time.
How much was the paint at Home Depot?
I was there earlier today...

Wolfman29 · Apr 25, 2011

It was like $8.70.

Just make sure you get a good brush and some primer for Latex paints, if you are painting on wood or metal directly. And follow directions!

Flaminpyro · Apr 25, 2011

Cool I also have been meaning to do this and need to rember to buy the paint next time I'm in town, Thanks for sharing

Wolfman29 · Apr 25, 2011

Yeah, it's really neat and cheap. Especially when you turn off the lights!

And hey, one of you guys with a 700mW 405... get some pictures for me, will ya? I won't be able to afford one of those diodes for a while...

LaZeRz · Apr 26, 2011

That does look pretty cool

well i havent found any GITD paint in my local shops yet but i will someday....

i also would like to see what a 1.3w 445 would do, im not sure if it will light it up or not.

Wolfman29 · Apr 26, 2011

Unfortunately, it wouldn't light it up at all. The only reason it lights up under 405 is because 405 is UV or near-UV, depending on who you refer to... and least, as far as I know. Glow in the dark paints only react to such ultraviolet colors... and 445nm isn't close to UV.

anselm · Apr 26, 2011

Really? My GITD board made from store bought zinc-based (I think) paint reacts
very happily under 445nm as well.

Helios · Apr 26, 2011

445nm works for sure. I have a glow in the dark ball and 1200mW of 445nm makes it glow very bright

Wolfman29 · Apr 26, 2011

THE INTERNET LIED TO ME!

Oh well.

I guess it makes sense that it would make it glow because it's such a high power than even if only a small percentage of the power is absorbed, it would still be quite a bit of energy.

But would, say, 100mW of 445 make GITD stuff glow?

RA_pierce · Apr 26, 2011

Wolfman29 said:
But would, say, 100mW of 445 make GITD stuff glow?

Yes.
405nm is much better for fluorescence and phosphorescence but 445nm still works on many of the same materials. 473nm doesn't work very well for charging GITD since it is not energetic enough but it does excite fluorescence in the same things as 532nm (orange hi-lighters, pink post-its, etc.).

Fenzir · Apr 26, 2011

I think this is a good idea that nobody got around to doing. May I ask what power 405 laser you're using in the picture?
Also, I have a glow in the dark ball that did work under 445 light just to clear things up although I do read in a lot of places that 445nm doesn't make work at all. And have you ever seen a 405nm laser on a flourescence green fabric? I'll take a picture later tonight.

Wolfman29 · Apr 26, 2011

Huh. Interesting! Well now I know!

EDIT:

The 405 I am using is a low-powered PHR, running at around 100mA, so I estimate it to be at about 80mW.

yobresal · Apr 27, 2011

Reminds me of something I put together.
Here is a video I just took in the middle of the day. This stuff is incredible responsive to UV. It is only an 85mW 405nm. What does a capitol F look like in cursive? who cares.
http://img269.imageshack.us/img269/7855/sha.mp4

Helios · Apr 27, 2011

is that the rustoleum paint?

yobresal · Apr 27, 2011

Are you replying to OP or me? Mine is not.

Doesn't Look Like Much But...

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