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GLOW-IN-THE-DARK fun with lasers!!!

scion

scion

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Ok, so i bought this LITTLE tiny thing of glow paint, painted some poster board, and see if it would be fun!

Well... its really cool, but i think the glow paint is cheapo!! lol.. if i hold the laser in one spot too long the surrounding area glows but the place where the dot was does NOT!!! ODD!!

Well, does anyone have any good ideas for glowing materials? I was trying to find something that was very effective to "drawing" on with lasers but cheap as well! any ideas?
 





scion

scion

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I am using currently a 50mW Green Laser.
And eventually a Blu-ray Laser build.
 
scion

scion

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Ok, soo... im getting really confused here...

I have a 50mW green laser and a Blue Led/Red Laser pointer and...

-Green Laser makes very tiny glow lines/dots
-Hold green laser too long in one spot, it makes it black and surrounding areas glow.
-Blue LED lights up the Glow material instantly and by far the best

Now... is it the Green color laser thats not making the glow brighter? or is it the laser just doesnt cause enough brightness to charge the glow? I'm really confused!!

I can try get pictures if that will help explain...
 
JLSE

JLSE

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If you have no IR filter in the green, this may be the reason. If you light a GITD object with a bluray, than hit it with IR, the IR seems to suck that energy back out. So your green maybe lighting it up ,and some IR leakage is removing it.
 
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nikokapo

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That same thing happens with the GITD sheets I got from yobresal. I don't know why that happens, maybe the heat energy starts to spread and the glow appears in the surrounding areas for that reason.
 
scion

scion

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That is very interesting!! So IR is what de-charges the Glow?

It makes sense what your saying and I understand what your saying, i think its crazy tho!! lol. I figured it would have lit up the glow paper wonderfully!

Guess time for a new laser or something....
 
JLSE

JLSE

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I remember playing around with different pens on a GITD tail clicky button, it was something to that effect. Strange indeed.
 
scion

scion

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is there something i can remove from my green laser to make it work on the glow in the dark material?
 
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nikokapo

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scion said:
is there something i can remove from my green laser to make it work on the glow in the dark material?
Click to expand...

No. The GITD material is reactive to certain wavelength (or wlgth ranges). You can get GITD for 532nm as well as for 405nm or 473nm.
 
D

Deleted member 8382

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All the GITD paint work with 405nm, doesn't it?

Btw, normal white fluorescent tubes do emit a lot of UV right? I say because in a place here in a town there's a ghost painted in the wall, painted with this GITD paint, and normally it doesn't glow so much, BUT, when you turn on the fluroescent tube that it's near there the paint goes madly bright!
 
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nikokapo

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Hallucynogenyc said:
All the GITD paint work with 405nm, doesn't it?

Btw, normal white fluorescent tubes do emit a lot of UV right? I say because in a place here in a town there's a ghost painted in the wall, painted with this GITD paint, and normally it doesn't glow so much, BUT, when you turn on the fluroescent tube that it's near there the paint goes madly bright!
Click to expand...

That's because it's white light. If you remember the famous Pink Floyd prism cover you'll see that white light enters, rainbow comes out. Well here's the same thing, even though you don't have a prism, white light contains the whole visible spectrum and that is why the "blue" part is making the GITD material react.
 
scion

scion

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WOW!! I'm back in school again! =D haha!
Great information!!

You know, i didnt realize how much there is to learn about GITD material and reactants! =D lol.

I have two GITD materials:
GITD Vinyl Sheet
GITD Craft Paint

The vinyl doesnt glow as BRIGHT as the paint does, However it glows for longer period of time than the paint, it emits a soft glow.
 
HIMNL9

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That "darkening" effect is caused from IR, yes, and is also the way how the "IR revealing plates" works.

If you have already seen one of these plates, you can see that the IR beam cause loss of fluorescence on them, making the spot target dark ..... those plates works in this way: you have first to "charge" them with a normal UV lamp, then, when you expose the charged part to an IR beam, the part that become hit from the IR "lost" energy and become dark.


Edit: a link to a producer .....

http://www.cascadelaser.com/neirdipl.html

their explanations are surely better than my english :p
 
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nikokapo

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HIMNL9 said:
That "darkening" effect is caused from IR, yes, and is also the way how the "IR revealing plates" works.
Click to expand...

I don't think so, unless my whole room is filled up with IR lasers. When shining 405nm light to one of the GITD sheets the darkening effect still happens. No IR on 405nm, maybe a little UV.
 
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