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Feeler: Nichia high power 365nm LEDs

arringtj

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Holy quantum tunneling, Batman! that is a lot of Nichia!
I would love to get one of the 330 mW UV diodes from ya.
The 1 watt is too expensive.

You Rock!!!

TY,
Jeff
 

arringtj

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Is there an LED flashlight host that this emitter could easily be put into?
Using 18650 battery, driver putting out 500mW?
 

HaloBlu

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Multiple posts right after each other is usually frowned upon unless days has past. You can edit your posts to add new things.

@ostbey Really interesting info / links & I've only been a few links so far.
 
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BShanahan14rulz

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nailbender used to make a drop-in with the nichia. He's out of those LEDs, but perhaps he has the mcpcb
 

Cyparagon

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I have one of those ultrafire 365s, and it is indeed about 365nm.



arringtj is wrong. The light is visible. It appears as a dim violet. Through a grating, the LED actually appears to emit a small amount of light throughout the visible spectrum as well. The main emission at ~365 appears as a greyish violet to me.
 

arringtj

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Well I was only going by the specs in a PDF. The stated bandwidth is 10 nm to each side of main wavelength. It is nice to see actual performance graphs, so ROCk on !!!! If we had a more powerful 365 UV LASER diode then we indeed would have a very narrow line. I have an inquiry sent about a 15mW laser but have not heard back on a price quote yet. Anyone know of a more powerful 365 nm laser?
 

Cyparagon

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No. It's not a cancer risk until somewhere around 320nm. Even then, it's a very mild risk unless the dose is large.

Regular fluorescent black lights emit in this range, too:

 

Cyparagon

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I think it is a minor mercury line. They actually emit all sorts of light, but they're generally in woods glass to block most of the visible spectrum. Woods glass passes both UV and IR. Without the woods glass, black lights appear bluish because of the mercury lines showing through. You may have noticed them in entryways to department stores or restaurants. I believe they're there to attract insects and help keep them away from the food.
 

Bionic-Badger

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Ok, here is the "king" of UV power LED I can find. uses 40W of power. Output is 1.6 Watts !!! @ 365nm wavelength...

http://www.mouser.com/ProductDetail/LedEngin/LZC-70U600/?qs=Z8F0rdG164B%2fuegy%252b1tIrQ%3d%3d
I've got the 10W version. It's pretty bright, but I haven't found much use for it to be honest. I think I measured around 300mW or so on a laser power meter, but I'm not too sure since the LED itself puts out a decent amount of heat and the Wood's Glass I have isn't exactly on 365nm.
 

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arringtj

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Very nice, Badger. shine it on some diamonds and see if they glow. One third of all diamonds should glow. How are you driving it? thanks for your response.
Jeff
 

Cyparagon

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If you turn it on for just a second or three and take a reading, the heat generated shouldn't throw off the reading much.
 




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