Print PDF
Favorite
Email
This was something I made to creep my house mates out with. It is a glowing Jar with a radiation sign on it. I left it in the cupboard once they were so confused.
What you need:
- A glass spice jar
- Access to a printer (to print a radiation label)
- A cheap foam light stick (for raves)
- UV reactive powder (I got mine from here)
- UV LED
- Spray mount glue (aerosol type)
- A scaple or sharp knife
- Spray the inside of the glass jar with glue
- Coat the inside of the jar with a mix of aqua blue and spooky green UV gowing powder and allow to dry.
- Print out the small radiation sign
- Stick the sign on the jar with some more, spray mount glue
- Finally place on your windowseal or under a desk lamp to charge up the powder.
Visit my website : http://www.mywikid.info/
If you like it (even the slightest) please vote for it in the make it glow contest, and the halloween prop contest. Thank you guys; in advance.
More Complex: Gives a cool pulsing & throbing effect due to a UV led (Much Brighter)
- Spray the inside of the glass jar with glue
- Coat the inside of the jar with a mix of aqua blue and spooky green UV gowing powder and allow to dry.
- Print out the small radiation sign
- Stick the sign on the jar with some more, spray mount glue
- Remove the light module from the foam by cutting it out.
- Desolder the 3 LEDs.
- Replace the blue led with a UV LED, this is because the blue and UV LEDs have similar operating voltages.
- Place the newly made UV LED module in the top of the jar and screw the origanal jar lid on top of that.
- Finally turn the light module on You are done !!
But basically, the simple (non LED version) will glow for a whole night but will not glow very brightly.
Where as the LED version will be brighter and will have flashing or pulsing effect built in.
The blue LED has an operating voltage similar to the UV LED, hence that is why it is used.
I hope that cleared any confusion, if not please message me again, thank you.
But I'm still concerned that you've removed 3 LED's, but only replaced 1 - didn't you have to solder in some jumper/bridging wires to keep the circuit complete?
Your foam stick has 3 LED's, which you remove and replace with just 1 UV LED - no jumper leads, or anything - and it still works..?
And if "it can keep glowing the entire night once the powder is charged up under a desk lamp", what's the LED actually for?
The PCB has a tiny microcontroller that independantly pulses each colour led with a seperate output port. If you where to solder a uv led on each output port you would not be able to see any fading as it is just one wavelength.
By only soldering to one output, you will be able to see the slow pulsing effect as there will be more contrast.
It is possible to solder the uv leds in parallel to the blues output port (up to about 3 leds)
And I'm sorry to have been so insistent on such a small point.