Thats IT, I MUST have a POWERFUL UV Light !!!

jtice

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I like to experiment with UV alot, and find it very interesting to use ouutside, and especially in caves.

I have a UV X5t, and while it does pretty good, I want something MUCH more powerful.

I figure to save $$$ i will have to build something,

Unit must be no larger than about 2"x3"x4" (or maybe a mag type shape) ,, but I dont know if I can pack enough into that /ubbthreads/images/graemlins/wink.gif

Off the top of my head, I am thinking 6 to 8AAs, or 2Ds, in somethign like a small pelican case, with an array of ,,,, ALOT of 5mm UV leds. and a Fatman driver.

Any recommendations? Can you think of a better solution? Or a good source for UV leds???

I know theres that one,,, 6W i think it was,, UV led that Gizmo and a couple others used, but its $120 just for the led /ubbthreads/images/graemlins/frown.gif
I dont think I will use this THAT much, to justify that.

Thanks for the help,
hope to get this made soon, and get some good pics using it for you guys /ubbthreads/images/graemlins/wink.gif

~John
 

cratz2

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I'm sure you saw the thread Pitbull did right...

http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Number=868714
http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Number=869276

Would the accessory pack and filter get you part way there? I know next to nothing about what emitters emitt how much UV but I think this might be a step in the right direction.

I was actually looking for something similar shortly before he posted his mod. Just seemed the best/easiest/cheapest way would be to have some sort of filter to go infront of whatever lightsource you had in a MAG.
 

xpitxbullx

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If you want small and pocketable, then I suggest the Nightcutter 5CSI UV (375nm) but at the moment, they are waiting for a shipment of the LEDs to come in from Japan.

If you want one the size of the 2D Mag and SUPERPOWERFUL...check out this cool site.
 

jtice

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Pockettable isnt a big deal, I want POWERFUL, so I am willing to get it fairly large.
A small pelican case mod is about the right size, I think I can pack that in to the caves better.

Ive seen similar things, and thought about making one, as you linked to.
And their prices are insane btw.

If I could find a good source for some UV leds I would be set /ubbthreads/images/graemlins/smile.gif
 

PhotonWrangler

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I've got a couple of shortwave UV lamps for mineral hunting. They're great for finding fluorescent specimens but they don't have much throw at all. The longwave UV flashlights I have are good for more throw, but they only activate a small fraction of the fluorescent minerals out there. And the dual-wavelength UVP that I have is pretty heavy and difficult to wave around in awkward places while rock hunting. But I think it's gonna be awhile before there's a comparable LED-based dual-wavelength unit that has some throw. /ubbthreads/images/graemlins/icon3.gif
 

xpitxbullx

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I spoke to them in various emails. They were very prompt and were quick to answer my questions.
 

cratz2

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So... were you able to find a place from which to buy the LEDs at a semi-reasonable price?
 

PhotonWrangler

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[ QUOTE ]
cratz2 said:
The Roithner website lists UV LEDs ranging from 350nm to 395nm.

http://www.roithner-laser.com/LED_diverse.htm

[/ QUOTE ]

Thanks. I checked there and the 350nm UVs are rated in microwatts, not milliwatts, and the shortest wavelength they have that gets into the milliwatt range is a 365nm LED, and that's only 1.4mw. And that's the same wavelength as a longwave UV fluorescent tube.
/ubbthreads/images/graemlins/icon3.gif
 

xpitxbullx

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LEDs are designed for hardiness and transportability. Nothing beats the fluorescent tubes for cost and ability that I know of.
 

paulr

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Jtice, if you want a powerful UV light, I think you still have to give up an LED's and use UV fluorescent tubes as some have mentioned. I'd say check on ebay for suitable complete units.
 

BugLightGeek

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[ QUOTE ]
jtice said:
I like to experiment with UV alot, and find it very interesting to use ouutside, and especially in caves.

I have a UV X5t, and while it does pretty good, I want something MUCH more powerful.
~John

[/ QUOTE ]

OK, but why do you want one of these for caves?
What can you see with UV? Tell us more!!!
(makes mental note to bring X5T UV on next caving trip /ubbthreads/images/graemlins/thinking.gif)
 

jtice

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Dont expect alot to glow in caves, or in the woods while hiking.
But, some stuff does and its fun to find it /ubbthreads/images/graemlins/smile.gif

I havent tried much in caves, due to the X5T being alittle too dim, you basically have to be right opn top of something.
I want to just flood the room with UV /ubbthreads/images/graemlins/smile.gif

Certain deposites in the rocks etc glow alittle.
And I think some fungi /ubbthreads/images/graemlins/smile.gif

I looked on ebay, all I saw were a couple handheld UV lights that used a UV flourecent bulb, about 6" of so, but they look alot like they are just "black lights". Plus, I think I would break that during caving /ubbthreads/images/graemlins/frown.gif

Thats why I was thinking LEDS, smaller package, very durable.

The Inretech ones look fairly nice, and I am sure they are brighter than my X5T, but, I doubt by much. Maybe 4 times?
Im wanting at least 10 times the X5T output /ubbthreads/images/graemlins/smile.gif
 

IsaacHayes

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Perhaps a Florecent Thor, with a UV bulb instead of the white one? Might give you enough throw or push to make it go farther...

I was thinking about getting those 395-400nm 100 5mm UV leds off of ebay from hongkong and building a 10x10 (100leds) array, DD off of some NiMH. That'd be pretty bright!
 

xpitxbullx

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Do you want bright ambient light or bright fluorescing light? Best not to look for it in one flashlight. Bring a low wavelength light and a regular light (of course you dont shine them in the same spot).
 

jtice

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I dont want much visable light at all, this is to make things glow, not see by. I have other lights for that /ubbthreads/images/graemlins/wink.gif

heh, a Thor in a cave,,, ah, NO, lol, these are tight squeezes.

I was also thinking of getting the 100 UV leds off ebay, I am sure they are not that good, and put out alot of visable violet light thgouh /ubbthreads/images/graemlins/frown.gif
 

xpitxbullx

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If you use 370 or less true rated LEDs, you wont have to worry about much visible light. I get my NightCutter 5CSI on Thursday. I'll take some beamshots so you can see what 375nm LEDs perform.
 
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