Cree 390-405nm XR UV, 80 times over...

[LEDmodMan]

Here's what 80 Cree XR UV LEDs look like in an array:

oo: :huh: :duh2: :sick2: :naughty:

Yes,

:devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil:

 

[Norm]

Re: Cree 635nm UV x 80...

I hate to be looking straight into that when it was turned on :eeksign:
Norm

 

[DaFABRICATA]

Re: Cree 635nm UV x 80...

OH MY GOD!!!!!!!:twothumbs


BEAMSHOTS PLEASE!!!

 

[YourTime]

EEK

and


how much did it cost you?

 

[evilc66]

What on earth do you need 80 UV LEDs for?

 

[Hamburger]

What do you use for cooling ? And where did you get the circuit board and what did you pay for it ? Did you solder the LEDs yourself ? Some more pictures please

I know I know many questions, I'm just interested in making arrays like that for future lightning in our home

 

[IMSabbel]

Same question from me, too: The curcuit coard looks very neatly made.
I think there might be a market for custom filled arrays like this...

 

[jeffosborne]

OKay, LEDmodMan, you have peaked our interest.

What gives?

We all searched for the name on the PC board and saw the lovelies at www.i2systems.com, but please enlighten us about this curiosity.

Thanks!

Jeff O.

 

[Oznog]

Do you want to FIND scorpions, or COOK them with that thing??

 

[LEDmodMan]

Ok, enough teasing. :nana: I had all the same questions you guys did when I first saw this thing. I WISH this array was mine!!! :mecry: :sigh: (I did take the pic though)

This is one of SIX arrays that are being experimented with to fluoresce objects at the facility I'm working in right now (480 emitters... OMG!!!). I was standing there looking over our model, and this thing caught my eye (how I missed it before, I have no idea).

I'll try to get a beamshot of one of these beasts in action if I can. I was told the facility tried to make their own arrays first without too much luck, so they had these custom-made by the company you see listed. I'm trying to find out approximately how much they paid.

These things would sure as heck ROCK in the hands of the CPF community. :rock: Group buy anyone... oo:



PS - THIS (at -250F) is used for cooling...

 

[LukeA]

What objects are they fluorescing? Smoke from the streamlining trails? Or like a magnaflux-type operation for the models? Can you give details?

 

[Oznog]

You sure whatever you're dealing with will be best with 395-405 nm?
Those rare, narrower 365nm give a stronger response on many UV-curing resins. Also the fluorescence is more dramatic, it doesn't seem to be so much an increase in response as it is a lack of the visible purple color diluting what you see.

I like it for ~400 stuff for charging glow-in-the-dark material for sure though.

 

[Cuso]

Damn, that Norland really is a pain in the *** to cure...:green:

 

[RyanA]

Led tanning booth?

 

[LEDmodMan]

haha. They mainly use UV in wind tunnels for oil flow visualization, so 390-400nm works just dandy. We're not using oil here, but similar fluorescence. I told them about the Nichia LEDs, and they actually might look into some for something else they do here... oo:

 

[RyanA]

haha. They mainly use UV in wind tunnels for oil flow visualization, so 390-400nm works just dandy. We're not using oil here, but similar fluorescence. I told them about the Nichia LEDs, and they actually might look into some for something else they do here... oo:

Oooo... piggyback group buy?..:devil:

 

[Hamburger]

Oh damn... I was hoping that it was your personal light and I could copy some of your cooling ideas

An array of like 9-10 XRE would already be enough for me so if anyone has any circuit boards groupbuys - I'm in

 

[LEDmodMan]

OK, who wants to guess what is different about this array compared to the one above:

:devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil:

 

[spencer]

They aren't Crees. Other than that I don't know.

 

[Morelite]

OK, who wants to guess what is different about this array compared to the one above:

:devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil: :devil:

This one uses Nichia 365nm LEDs. The other array uses Cree XR LEDs.