Flickering blue LED cast into glowing resin obelisk.
Added 2020-03-15 03:44:45 +0000 UTCBy request. A video showing the process of casting an LED into a photoluminescent shape.
This actually looks really good in a dark room with the LED current limited to a fraction of a milliamp. It would make a very intriguing sci-fi style pendant.
Comments
If it was possible there would have been white LED lights a very long time ago with a high power (and super-rugged) infrared LED behind a phosphor panel.
Big Clive
2020-03-17 20:56:58 +0000 UTCAh, I was afraid that might be the case.
Tapewolf
2020-03-17 20:48:14 +0000 UTCSadly not. It usually requires a light colour with a shorter wavelength to stimulate a phosphor.
Big Clive
2020-03-17 20:37:07 +0000 UTCPeople have asked about UV LEDs with this stuff, what about infra-red? Could you make these things glow with an LED intended for a remote control, for example?
Tapewolf
2020-03-17 19:40:07 +0000 UTCGood to know, thanks!
Jason Brinkerhoff
2020-03-17 14:05:38 +0000 UTCA violet laser has a profound effect too, but beware of reflections as the power of some of the lasers is quite high.
Big Clive
2020-03-17 06:58:40 +0000 UTCYou can limit the current. Even at a fraction of a milliamp it looks great in a dark room.
Big Clive
2020-03-17 06:57:12 +0000 UTCIt at least smells like silicone spray. But its not gonna help with those molds.
Andreas
2020-03-16 23:50:45 +0000 UTCThanks!
Bill Kerr
2020-03-16 05:00:39 +0000 UTCYes, and it charges it way bright !
2020-03-16 03:37:02 +0000 UTCI got my 12 packets of Avid Glow, different light sources charge different colors differently . The yellow green is the brightest, with house led lighting, but they all go crazy with my "black light" flashlight. I have two qts of resin, and some molds coming. My wife thinks I'm a crazy old man. I am. You should try a uv led. Shine a uv light on your powder. (or have you done that ?
2020-03-16 03:34:31 +0000 UTCTypically you lubricate the mold before pouring the resin. I believe the release agent is a silicone oil but petroleum jelly also works.
George Cohn
2020-03-16 00:52:26 +0000 UTCMaybe a UV-LED, with an external circuit to provide the flickering effect? Would also allow for tuning the duty cycle to come on just often enough to recharge the phosphor.
N H
2020-03-15 22:56:32 +0000 UTCThe way you said "because it's cheap" at 4:57 had me in stitches! 😁
2020-03-15 21:39:14 +0000 UTCDo the flickering LEDs work at a lower voltage? A more tamed LED might keep it charged up and create nice effects without overpowering it. I also had a thought of a photoresistor so in brighter lights it could have a stronger effect to make it more interesting while ambient is swamping the glow.
Jason Brinkerhoff
2020-03-15 17:34:43 +0000 UTCOr suppositories!
Andrew Donaldson
2020-03-15 16:17:30 +0000 UTCGlowing tampons!
evilution
2020-03-15 11:50:18 +0000 UTCI really love these glowy-resin projects. While it isn't something that has bitten me I do enjoy watching and learning very much! Oh, and I passed my Ham Radio exam. N2NLQ/AE at your service!\
Michael Thompson
2020-03-15 10:34:08 +0000 UTCIt seems to me the higher energy in UV would be effective (if it is effective) w/o the LED itself overpowering the glowing object.
Bill Kerr
2020-03-15 05:56:30 +0000 UTCI wonder if you can "charge" glow in the dark materials with UV light. I mean to make it glow on its own, not phosphoresce. Anybody know?
Bill Kerr
2020-03-15 05:54:47 +0000 UTCI bought some suspicious white powder in a bag called "strontium glow powder" off eBay last week. While it does glow very faintly bluish, it's more flourescent than glowy. Hopefully I haven't got myself on some watch-list?
Wim
2020-03-15 04:59:01 +0000 UTCI like that. I might have to make a few....
Phil Moyer
2020-03-15 04:09:21 +0000 UTCWhy don't you 3D print holder and pour the resin in the permanently, a complete unit.
2020-03-15 03:56:24 +0000 UTCIf somebody asks what the shiny thing behind the ear is, tell them that's the Data Jack into your brain. :)
2020-03-15 03:54:35 +0000 UTCI just had a bag of g-i-t-d powder, all the way from our friends in China. Well it's definitely a powder. Sadly, definitely not g-i-t-d.
Neil Tonks
2020-03-15 03:52:10 +0000 UTC
