A nice find at an abandoned theatre :)

Meh the explosion couldn’t have been much of an event, your wearing shorts and sandals? Or is this all you had to change into after the explosion? :smiley:

A very nice find indeed! And yes, it’s very dangerous to handle these without proper protective clothing! Not all HID bulbs are under pressure when not in operation, but Xenon short-arcs are.

The power supplies are so heavy because Xenon short-arc bulbs are operated at very low voltages. The thus very high currents (hundreds of amps) leads to large component sizes and thus wheight.

I don’t think that it’s possible to use this in a portable, self-contained light. It also wouldn’t be cost effektive to design a light using this. Skybeamers with these kinds of wattages can be had for around 2K-5k$ from China.

I think you would be best advised to sell it. For 800$ you could easily find a Maxabeam! :wink:

The term “waiven collar” should be purged from the collective vocabulary, or at least not used out of context. All a “waiven collar” is is a SPHERICAL REFLECTOR, or SPHERICAL MIRROR, which has been studied since at least the time of Ptolemy, 2nd century AD, if not before. Their patent applied to putting one over an LED, which has a specific effect. A spherical reflector is easy to make with conventional machinery using a ball endmill, and of course can also be purchased from an optics manufacturer.

—-Later in the day Edit:
Uh, where to begin… my above post, firstly, is a non sequitur. Also, the use of the term waiven collar in this thread was in consideration of the effect rather than the geometry, which apparently went over my head. Thirdly, I too agree that the effect of the device is not novel, from since a few years ago when MEM talked about the effect of the device and how its not novel, yet by mentioning their patent as being related to the effect I give credence to it…. And fourthly, a waiven collar, and also it seems the spherical portion of the projector reflector in this thread, is not just some home made optic, or even an electroformed spherical reflector, but a very precise spherical reflector made from glass. Catharsis! Ahh, the forums are good for me, haha.

Putting it over the LED has the same effect as putting it over an arc lamp.
IMO they shouldn’t have been granted that patent because it’s not novel.
These projectors existed long before wavien applied for patent.

Recently I have been asking around to see what price optics companies would charge for a custom sized spherical reflector and it’s been really expensive, $1000+, so if I can get one from a projector that would be awesome.

That looks awesome!

The 2500W XBO bulb does 100k lumens :open_mouth:

Yeah it’s definitely not possible to make a flashlight out of this, even my 4 lipo batteries would only last 6 minutes running this thing, if it was even possible to power with batteries.
If I were to use it it would be for a static searchlight/ sky beam, but I’m not going to spend $10k for a 2500w xenon ballast :frowning:

Ok, that bulb is cool and all, and I’m curious to see what you end up doing with it, but could you back up to the part where you found it at an abandoned theater? Abandoned as in nobody was there since it was after closing or overgrown with vines in the woods abandoned? :smiley:

Haha abandoned as in it hasn’t been open for years, the interior is half destroyed, thick layer of dust on everything, any valuables already stolen.
I guess nobody found the bulbs which were at the top of a cabinet, or knew their value.
Was really cool exploring in it with a flashlight in the middle of the night :slight_smile:

Nice find Endermen!!! Keep it, there is no doubt in my mind that you will find a way to use it…… :wink:

I ran movie theatres in Miami for 7 years, 5 as a general manager who was trained in installing Xenon bulbs.

That’s about a $500-$600 bulb in ’95-’02 dollars.

Be aware that it’s leaded crystal and it’s pressurized, so if it pops and you’re not wearing a welder’s mask, flak jacket and gloves, the surgeons are going to have a hard time picking the shards out of your face because leaded crystal doesn’t show up on X-Rays, or at least that’s what the experts told ‘us’.

Best thing to do is to contact a local theatre, offer to let them test it with a union projectionist and offer it to them at* a good price.

Profit.

Chris

Haha thanks, this one may be a bit out of my league…

Good to know, thanks.
They seem to sell for under $500 on ebay, but new they are $600-800.
Selling it seems like the safest thing to do :stuck_out_tongue:

What lights did you use during your adventure?

P5r.2, my EDC flashlight :slight_smile:

As far as I know it’s the zoomie with most throw in a flashlight that size.
Some day I will mod it for more throw than 240m.

Should be easy ;).

Thanks for the link :slight_smile:
I’m planning to put a Black flat in it.
Do you think it would be possible to put a real driver inside that flashlight or nah?

Yes, I think there is enough room (the actually put a spring between the led and the “driver” pcb, so that gives you maybe 5-7mm of height). The diameter would need to be quite small though.

I asked my friend whose still worked there. We’ll see if he still can get some for us. Hopefully the owner didn’t throw it already.

- Clemence

I remember when I was a boy back in early ’50’s.
Candle boy in local cinema.
My job was to change the spools. and switch Projectors.
Watching for the little dot on top\bottom? right of screen. Time to change.

Also swap out the carbon rods when they too short to run through a full spool.
I was dead meat if screen went dark b4 change over .
Got all my mates in though after lights went out.
So a bonus hey.
PRE those lamps. yes.

Awesome, yeah I might stick a 17mm driver in there or something.
Or maybe take a P7 and convert it to 26650 and then mod it, idk. The 4xAAA battery lights like P7 and T7.2, T7M are the perfect diameter for 26650.
I don’t want to bother electrically insulating everything so I’m going to wait for the new osram LEDs to be available, the “new” black flat with neutral pad :slight_smile:

Thank you so much dude, appreciate it!

So, did you sell it?

Nope it’s still in the box.
I’ll need to find some time to put it up for sale, haven’t sold anything on ebay before and I don’t think anyone on craigslist would be looking for this type of thing.

You are a lucky guy to find this 2500W short-arc xenon lamp, untouched.