Xenon!!! Xenon!!! Xenon!!!

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#2
Yea I looked at those but nobody seems to know how long they last and they flash like a strobe light and I havent ever seen a ballast/power supply for one AND at that high of watage it can give you a sun burn or even skin cancer AND mabey effect your eyes. Those are used in the printing business when they make the master print on the machine it warns not to expose yourself to the light. These also run on a very high voltage around 2,200 volts it will kill you in a heart beat if your not carefull. All in all I frown appon these untill I could talk to an expert on them.
 
#3
Another thing I read is that if you drop one of these, its pretty much game over...

But you could run the light through a UV filter, that would eliminate the health issues, wouldn't it?

Even if they dont last very long, at $10 who is complaining!?!

http://www.uvlamp.com/TechArt/shortarc.htm

Here is a bit of info on them.

I'll admit these lights seem a bit hardcore for us DIYers. But if someone could do it they would have a C*R*A*Z*Y projector.
 
#7
You also need regulated power supply for that thing to work. From the picture it seems to be 22 V so it would take 100A. They need high voltage to be ignited.
I work in a cinema and we have two types of pj's, 1950's Ernemann X's and a little younger Ernemann 12. The X's have 1600 W short arc xenon's and the 12 1000 W.
Each projector has it's own power supply, and they're big!
See http://www.ernemann.com/e/xenon.htm for modern example.
The projection distance for X's is about 50 m (~167 ft) and 1600 W is enough to project a good picture even with not that good reflector design IMHO.
At these wattages xenon's produce A LOT of heat, you can't really touch the film port after the film has ran, which takes about an hour.
So you could (should) use a lot smaller xenon bulb for DIY projection.
The bulbs we use last for 5000 hours.
The bulb in question here seems to be rather new as the glass isn't dimmed.
 
#8
No prices on that site, not a good sign
Do you know how much one of these p/s 's cost?

Psionic said:
I'll admit these lights seem a bit hardcore for us DIYers. But if someone could do it they would have a C*R*A*Z*Y projector. [/B]
Click to expand...


Now that I think about it, this is the same type of light that Mr. YWH was using in his projector, so they can't be that hardcore dangerous.
 
#9
projector/frying pan

Psionic said:
No prices on that site, not a good sign
Do you know how much one of these p/s 's cost?




Now that I think about it, this is the same type of light that Mr. YWH was using in his projector, so they can't be that hardcore dangerous.
Click to expand...


YHW uses 575w (which is in alot elmos) he doesnt use 100 amp 1200 watts 🙂 http://www.acmeco.com.tw/xenpow.htm

this link has some info on the tpye of light posted on this thread after reading it tell me if you still think a 1200 w Xenon is a good idea?
:crazy: lol

http://www.uvlamp.com/TechArt/shortarc.htm#What are short arc lamps?
 
#10
Xenon's nice because its a much much much smaller package, but metal halide is well over twice as efficient, especially when you're talking about high wattage metal halide.

A 1000 watt metal halide bulb will produce more light, less heat, last ten times longer, and you'll be able to find them now and always for $34 a pop. Too bad they're so fracking huge. Thats really the only advantage of xenons.

Myren
 
#11
Light Spectrum

Slightly off topic....

...But is the the visible light spectrum given off by whatever type of bulb we use really that important, given the fact that we can adjust RGB color levels on our screens....espescially to adjust any color defficiencies our bulb might have?

thanks.
 
#12
Re: Light Spectrum

Property said:
...But is the the visible light spectrum given off by whatever type of bulb we use really that important, given the fact that we can adjust RGB color levels on our screens....espescially to adjust any color defficiencies our bulb might have?

thanks. [/B]
Click to expand...

by adjusting the colour, you would be letting killing more green and red light, to promote the blue spectrum. But when you do this, you would be killing alot more light and generating alot more heat.

Its is much more efficient to use a light with the correct color temperature.
 
#13
How about this DLP projector with Xenon lamps?

http://www.christiedigital.com/Products/products.asp?Port=5&ProdPartNo=CPSERIES

Christie CP2000H

Native Resolution: HD 2048 x 1080p
DMD Size & Types :1.2" 12° degree
Lamp Type: CDXL 4.5/6.0 kW
Contrast Ratio (ANSI) : >500:1
Contrast Ratio (Full Field) : >1700:1
Screen Size (Width) :Up to 75ft/23m
Ballast : 7kW Thyristor
Color Resolution : 15bit RGB

Not bad, except the color resolution.
 
#16
:att'n:

Just a quick caution, Xenon lamps can explode with a fair amount of force. When handling them you should wear a full face mask and very heavy duty gloves!

I know a guy who lost two fingers when a 1.2k xenon bulb in a follow spot he was changing went off for no particular reason. Luckily, his face was screened by the fixture, or he would probably been blinded as well.
 
#17
This thread died a while ago, but now I'm thinking about it again.

If YWH fixed some of us up with cheap HMI bulbs, maybe he can fix us up with cheap xenon ballasts?

He's told us that he is hurting for dough, so they must be cheap over there.

These bulbs are continuously on ebay for around $10.

People have complain about heat, power draw, danger, and price when talking about xenon, but when it comes down to it, if YWH has it, its possible. And we've all seen his results.
 
#19
Don't forget your SPF 600 sunscreen

“Danger Will Robinson”

It looks like the device sould work with some of the lamps that have been discussed, but golly putting it altogether in a safe box is nothing not trivial. You'll need a good high tempature reflecter, a cassing that's resonable blast proof, high veloccity air suply, an inter lock switch to the PS becuase of HV and UV protection concerns, HV high tepature cable...

It has the potential to be a great light souce, I think if I were heaeded in this direction I would be looking for a used Strong, Peerless, or Trouper lght source that would have all thes concernse addressed already.

An HMI Par lamp might be anouther way to go. The light souce is prepackaged in a heavy glass package prefocussed to the reflector. a Narow beam 575 watt HMI Par might work good with a fresnle / LCD panel.

Perhaps the Pinkmouse can give some insight about what these things cost these days.
 
#20
Re: Don't forget your SPF 600 sunscreen

Da5id4Vz said:
“Danger Will Robinson”

It looks like the device sould work with some of the lamps that have been discussed, but golly putting it altogether in a safe box is nothing not trivial. You'll need a good high tempature reflecter, a cassing that's resonable blast proof, high veloccity air suply, an inter lock switch to the PS becuase of HV and UV protection concerns, HV high tepature cable...
Click to expand...

then why doesn't ywh have all this
 
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