Old 11-18-2011, 02:28 PM #33
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Default Re: Feeler: Nichia high power 365nm LEDs

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.

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Old 11-18-2011, 02:32 PM #34
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Default Re: Feeler: Nichia high power 365nm LEDs

Is there an LED flashlight host that this emitter could easily be put into?
Using 18650 battery, driver putting out 500mW?
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Old 11-18-2011, 02:50 PM #35
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Default Re: Feeler: Nichia high power 365nm LEDs

Amazon.com: 1-Watt 365nm Ultra Violet UV LED Flashlight for forensic work: Home Improvement
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Old 11-18-2011, 03:18 PM #36
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Default Re: Feeler: Nichia high power 365nm LEDs

365 nM Black Light

even better here at black light USA. I sent an inquiry on LED output.
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Old 11-18-2011, 05:48 PM #37
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Default Re: Feeler: Nichia high power 365nm LEDs

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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Old 11-21-2011, 05:16 PM #38
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Default Re: Feeler: Nichia high power 365nm LEDs

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/...52b1tIrQ%3d%3d
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Old 11-22-2011, 02:08 PM #39
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Default Re: Feeler: Nichia high power 365nm LEDs

nailbender used to make a drop-in with the nichia. He's out of those LEDs, but perhaps he has the mcpcb
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Old 11-22-2011, 02:23 PM #40
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Default Re: Feeler: Nichia high power 365nm LEDs

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.
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Old 11-22-2011, 05:46 PM #41
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Default Re: Feeler: Nichia high power 365nm LEDs

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?
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Old 11-22-2011, 06:33 PM #42
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Default Re: Feeler: Nichia high power 365nm LEDs

Isnt 365nm light carciogenic?
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Old 11-22-2011, 10:11 PM #43
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Default Re: Feeler: Nichia high power 365nm LEDs

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:

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Old 11-22-2011, 10:14 PM #44
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Default Re: Feeler: Nichia high power 365nm LEDs

What's with the spike right next to 700nm? That's odd o.o
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Old 11-23-2011, 01:42 AM #45
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Default Re: Feeler: Nichia high power 365nm LEDs

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.
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Old 11-27-2011, 03:03 PM #46
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Default Re: Feeler: Nichia high power 365nm LEDs

Quote:
Originally Posted by arringtj View Post
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/...52b1tIrQ%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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Feeler: Nichia high power 365nm LEDs-dsc_5169_10w_365nm_ledengin.jpg  

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Old 11-27-2011, 03:49 PM #47
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Default Re: Feeler: Nichia high power 365nm LEDs

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.
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Old 11-28-2011, 02:29 AM #48
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Default Re: Feeler: Nichia high power 365nm LEDs

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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