Old 10-08-2013, 10:10 PM #17
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Default Re: Nichia UV surplus diodes.

Quote:
Originally Posted by crazyspaz View Post
Yea, it's UV since its >400nm, but at the same time, it could be considered near uv, since its very close to 400nm. and Yes it will fluoresce on white surfaces, etc. anything a 405 will fluoresce on, these diodes will I'm pretty sure?
This ">" is a greater than sign, also if you were answering Blord, the question is would it fluoresce on a non-fluorescent surface, IE is 375nm visible to the human eye. Different white surfaces vary a good bit with fluorescence.


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Old 10-08-2013, 10:16 PM #18
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Default Re: Nichia UV surplus diodes.

Should be noted that this will also fluoresce objects just as 405nm will, and 337nm will

See "TEA laser" in google for more information
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Old 10-08-2013, 10:29 PM #19
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Default Re: Nichia UV surplus diodes.

I did some search about UV on minerals and it seems SW UV wavelength like 254nm gives more spectacular response on minerals. 375nm is still LW UV.
More information on this thread, http://laserpointerforums.com/f38/fl...-ir-20800.html
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Old 10-09-2013, 12:56 AM #20
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Default Re: Nichia UV surplus diodes.

Quote:
Originally Posted by Cyparagon View Post
A Coherent cube just went for $450 on ebay last week. It was only 6mW, but it was a turn-key unit.
And I was watching it. But too much for me

Also, 365nm LED diodes are out there and AFAIK they are the farthest LED into UV made (that I've seen) they are always labeled as UV. It's what most of the UV flashlights use. If there are others, I'd like to know, also

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Old 10-09-2013, 05:17 AM #21
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Default Re: Nichia UV surplus diodes.

I hate seeing these diodes in my watch list. I get more tempted every day
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Old 10-09-2013, 07:02 AM #22
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Default Re: Nichia UV surplus diodes.

Could you theoretically receive a sun burn from a UV diode?
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Old 10-09-2013, 07:26 AM #23
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Default Re: Nichia UV surplus diodes.

No, you need UVB or lower for sunburn. Compare 375nm with the peak wavelength of a fluorescent black light: ~370nm. How many times have you been sunburned by a black light?
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Old 10-09-2013, 02:26 PM #24
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Default Re: Nichia UV surplus diodes.

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Old 10-09-2013, 04:17 PM #25
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Default Re: Nichia UV surplus diodes.

HA. I get it. blacklights rated for 80000 Watts...
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Old 04-21-2014, 11:20 PM #26
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Default Re: Nichia UV surplus diodes.

Na-Chee- ah






Quote:
Originally Posted by crazyspaz View Post
edit: also, how the heck do you pronounce "Nichia"? is it "Nitchia" or "nickia"..stupid question but i gotta know
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Old 04-23-2014, 12:25 AM #27
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Default Re: Nichia UV surplus diodes.

nacho cheese ?
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Old 04-23-2014, 12:25 AM #28
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Default Re: Nichia UV surplus diodes.

nacho cheese ?
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