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FrozenGate by Avery

Xenon Pocket Burner [Video Added]

Bump for a good thread

I just got all the parts for this is the mail today, and I am very impressed with the results! The xenon bulb isn't an improvement in terms of light output, but I got this for novelty only :)

Also, you can easily find a C1 shell without the lens or the bulb on ebay for much cheaper than the whole flash light
 





ARGLaser said:
Bump for a good thread

I just got all the parts for this is the mail today, and I am very impressed with the results! The xenon bulb isn't an improvement in terms of light output, but I got this for novelty only :)

Also, you can easily find a C1 shell without the lens or the bulb on ebay for much cheaper than the whole flash light
Click to expand...

I completely forgot about this :p

I haven't built a light yet :crackup: I was looking at some RGB LED's at DX that I could make something interesting out of but i still have this project in my Mind :D
 
Thanks ARG, I'm glad you're enjoying it!

I only just got my one back out again yesterday and it's still going strong

It's pretty useless in terms of using it to see in the dark, But it's still good fun saying "Watch this.."
 
Great tool for going hiking. Bring a flashlight "burner" and some dry kindling with you to start a fire if you need to. Great idea. I like this much better than wicked lasers halogen mag-light. +1
 
Wait, I don't get it. :thinking:

How can a 8.4V x 1.5A = 12.6W bulb start a fire?

I can't even light a match with a 50W halogen lamp let alone start a fire. :whistle:

Is it because the glass focuses the beam onto one spot?

This is seriously cool though. Don't you get burns when you hold it up to your hand?

Cheers! :beer:
 
It's kind of like, how can a 100mW laser (0.1W) burn through tape, when I can put as much tape as I want on a 2000mW bulb and nothing happens. It's all about controlling light and putting it where you want it. The smaller your source, the easier it is to control the light, but the harder it is to get a whole lot of power from a tiny source.
 
There is a tonne of longwave IR that is emitted from halogen lights. You can cook with them very easily. The reflector radiates the heat into a narrow beam thereby making it possible to burn and cook. Hold it up to your hand and you won't be able to have your hand in the beam path for more than a few seconds. A small halogen used for track lighting doesn't operate at the same temperature that projectors or flashlight halogens operate at. If you allowed them to operate at the same temperature, you'd be risking a fire. As it is most halogens used for projection and or high intensity light output are encased in Barium Titanate Ceramic with a thick filament made of Tungsten and fused silica. This makes them durable for a few 100 hrs of life. Trust me, an overhead projector Halogen ( same size as a desk lamp or track lighting) can start a fire instantly.
 
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I see. Thanks for the explanation guys.

I'll definitely have to build one.

Cheers!
 
You know those track lighting halogen bulbs? I heard lot of them have a dichroic reflector that reflects visible light but transmits a lot of the IR. I think they are the ones where the reflector looks like, hot pink or magenta when it's on.
 
Those bulbs are also coated with an anti-UV filter. This might be the tinting you're seeing.



526080_5477dd87a27031eb3d0265e20cd70738.jpg
 
Oh I'm just talking about the regular halogen bulbs like you use in your house on a ceiling track to light up abstract art or something like that. I thought it was cool that something as "cheap" as one of those bulbs would have IR passing reflector. I can imagine with projector bulbs, you want to be even more careful with what kind of light you spit through those optics and LCD screens
 
BShanahan14rulz said:
Oh I'm just talking about the regular halogen bulbs like you use in your house on a ceiling track to light up abstract art or something like that. I thought it was cool that something as "cheap" as one of those bulbs would have IR passing reflector. I can imagine with projector bulbs, you want to be even more careful with what kind of light you spit through those optics and LCD screens
Click to expand...

Actually those are UV filters as well. I used the pic for a reference point. Same filter.. Gallery lighting should be as UV free as possible to prevent photochemical reaction to paper and pigments. Some of the bigger bulbs, like the one featured in the picture are/can be actually used as a UV source.
 
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This looks like a nice little cheap mod. Just what I need to get into flashlight mods :)
 
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