This may be worth a try...
1 - head to your nearest $2 shop, and pickup a cheap "fibre-optic" lamp, like this...
1a - while you're there, pickup one of those cheapo gas BBQ lighters
2 - rip the lamp apart,
(access via 2 screws underneath the base unit),
and seperate off one of the "threads"
(They are not actually glass fibre-optic at this price, just acrylic strands)
3 - locate your nearest Radio-control hobby shop, and obtain from them a length of rubber RC car fuel line
4 - head to Dick Smith or Jaycar, and pickup a high brightness "blue white" 3mm LED, and a 1000ohm (1k ohm) resistor
Similar to this
http://www.jaycar.com.au/productView.as ... rm=KEYWORD
http://www.ledsales.com.au/catalog/inde ... cts_id=766
Now, the recipe!
1 - Using a LOW flame, use the BBQ lighter to heat each end of the acrylic strand, such that it forms a little "mushroom" shape.
2 - cut a length of the rubber fuel tube, maybe 25mm,
and force the 3mm LED "head first" into one end.
3 - Insert one "mushroomed" end of the fibre-optic into the other end of the tube. You'll notice that where the tube widens out to fit around the LED, forms a socket, which the mushroomed fibre will "pop" into.
You do NOT need to force the fibre hard up against the nose of the LED, NOR should you use ANY form of adhesive. Just let the fibre stay in place by friction and that mushroom-mechanical "socket".
4 - for the sake of the test, wrap one lead of the 1K resistor around 1 leg of the LED.
is resistor is critical to ensure you don't immediately blow the LED up with what we're about to do next!
5 - using a basic 9volt battery, touch one terminal to the FREE leg of the LED, and the other terminal to the FREE leg of the resistor. If the LED does not come on, turn the battery round so you swap which terminal is touching which lead, and retest.
If everything is working as expected, you should have
- a LED causing a "glowing" rubber tube
- with a fibre-optic strand hanging out the end,
- and a very definite bright pinpoint of light visible "end on" from the mushroomed "free end" of the fibre optic.
'That's cool, but how do we get out scale fluro tube?"
Well, we've learned that anywhere the fibre-optic is nicked, cut, or otherwise not "a whole tube", light becomes visible.
6 - using your X-acto knife, lightly drag it along a 25mm length of the fibre-optic. We are not trying to cut thru it, simply strategically reduce the fibre-optic at the location in question from a "O" cross section to a "D" cross section.
with care, you can get the "D" shape, with the result that the FLAT bit of the "D" will act like the mushroom end, and release "visible light".
How can I be sure that this will work?
(Check the red truck's head and running lights, that's those fibre-optics...)
(More fibre-optic truck lights)
(Check the light above the bouncer standing in the doorway. That's another fibre-optic. Note the pool of red light in front of him on the landing, that's coming FROM said "door light"!)
(You already know what that light in the top of the phonebooth is, and again notice that it throws soo much light at to create a pool of it on the ground, and on the figure...)
The key things to take away are
- use a HIGH brightness LED
- Mushroom both the "LED Source" and "visible" end of the fibre-optic
- Fibre need not be expensive, but DO NOT use glue on it! This will attack it, and affect it's ability to transmit light.
- rubber RC car fuel line makes a cheap easy and "pluggable" LED<>fibre-optic "coupler"
Hope this Helps...
Aim to Improve,