A Interesting Discovery with trans Grn & Orng Pcs.

[Stauder]

Yesterday, I was playing with a little keychain light (Purple, or a UV light, not sure) and when shining it on a shelf with some lego on it, I found, to my surplise that some parts glow very niceley. These are Trans-lime-green and trans Orange, the old one from space sets. I will post pics as soon as they are uploaded (They are at 47% right now)

EDIT : - Pics, The first one is with no light (thus blurry) and the second is with the purple/uv light.

Was this known? Even if it is pretty darn cewl.

EDIT 2 - Look here for some more pics.

Stauder.

Edited April 1, 2008 by Stauder

[Freddie]

I think it is well known among space fans, or at least among the more advanced moc'ers, that some of the colors are highly louminiscent, which they obviously use to their advantage when they take pictures.

There's very likely to be pictures of it on brickshelf and other moc-sites.

Edit: Here's one:

Edited April 1, 2008 by Freddie

[Pencoin]

cool

[Stealth Hunter]

WOW! :'-)

Thats a radioactive shiny thing. *wub*

[CP5670]

I've seen this effect. Looks very cool in the dark, and I think many official set pictures (on boxes, catalogs and so on) are taken with some sort of blacklight like this. You always see the trans-neon green parts glowing brightly in them.

On a related note, try this: take two identical pieces, one trans-neon green and one trans-yellow, hold them up to a light source (anything will work, doesn't have to be a blacklight) and look through them. The neon green one actually looks more yellow than the yellow one, although they're extremely close.

Similar comments apply to red and neon orange. If you hold them up to a light, preferably incandescent, they look practically indistinguishable.

[JimBee]

i always thought that the trans neon green had a nice sparkle to it... but these are amazing! looks really neat! *sweet*

[The Brick Rat]

It's a really neat effect. At Brickfest a few years ago (2005 I think), they had a black light room where lots of folks brought MOCs that had lots of trans-neon pieces in them.

[Cardinal Brick]

I never knew that, thanks for posting that I'm sure it'll come in handy one day.

[Stauder]

It's a really neat effect. At Brickfest a few years ago (2005 I think), they had a black light room where lots of folks brought MOCs that had lots of trans-neon pieces in them.

So I have been told bye ImparialShadows via PM, if he finds any pics he will post them, sounds really cool! *sweet*

Stauder.

[AVCampos]

Unearthing this old topic! I too noticed the fluorescence effect on trans-neon-green, and thought about placing a few discreet UV LEDs on my Space layout (it's Blacktron 2 vs. M:Tron, so there's TNG everywhere).

However, if I'm not mistaken, it's the UV component in sunlight that ruins LEGO colours, especially white and blue. Has anyone got any experience in long-term usage of UV to illuminate LEGO models?

[AmperZand]

However, if I'm not mistaken, it's the UV component in sunlight that ruins LEGO colours, especially white and blue. Has anyone got any experience in long-term usage of UV to illuminate LEGO models?

Good question! I'd like to know the answer too. Sunlight contains UV-A and UV-B. Black lights only emit UV-A. I don't know whether any kind of UV triggers the bromide additives in ABS to react causing discolouration or whether it's only UV-B. Is there a friendly chemist/materials scientist on the board with the answer?

[rodiziorobs]

Bromide additives have not been included n bricks since the late 90's, so if there is any UV discoloration, it's not due to that. Also, transparent bricks aren't ABS, but usually polycarbonate. There may be other effects from UV lights, but I am not sure what they would be.

As far as the fluorescent effect, I have achieved the same result from my projector when it's in blue screen mode, both from direct light and ambient light:

Andromeda's Gates week 35 by rodiziorobs, on Flickr

Edited April 3, 2016 by rodiziorobs

[pyro690]

Cool!! Might have to get the black light out of storage and try it out! :laugh: :thumbup:

[Lyichir]

Trans. Fluor. Reddish Orange (Trans-Neon Orange) and Trans. Fluor. Green (Trans-Neon Green) aren't the only colors this works with—there are actually three others. Trans. Fluor. Blue (Trans-Medium Blue) is the third color that's actually named as fluorescent by Lego, and glows fairly brightly despite being much glassier than the other fluorescent colors under normal light. Trans. Bright Green (the color introduced in the Atlantis theme) also glows under a blacklight. And SOME Trans. Bright Orange parts glow under a blacklight, though in that case it's much more inconsistent than the other fluorescent colors and some parts in that color will not glow at all.

Edited April 6, 2016 by Lyichir