UV LEDs
UV LEDs
(OP)
I'm not sure if this is the best place for this question, but couldn't find a more suitable fit.
I was hoping someone could help me clairify the differences between ultraviolet wavelengths? In my Google searches, I have run across several different terms and wavelengths. My understanding is the following are interchangable:
UVA or Long Wave UV (345-400nM)
UVB or Medium Wave UV (280-315nM)
UVC or Short Wave UV (200-280nM)
Once I get my terminology straightened out, I'll be looking for suppliers for "UVC" LEDs (if they exist).
I was hoping someone could help me clairify the differences between ultraviolet wavelengths? In my Google searches, I have run across several different terms and wavelengths. My understanding is the following are interchangable:
UVA or Long Wave UV (345-400nM)
UVB or Medium Wave UV (280-315nM)
UVC or Short Wave UV (200-280nM)
Once I get my terminology straightened out, I'll be looking for suppliers for "UVC" LEDs (if they exist).
"Art without engineering is dreaming; Engineering without art is calculating."
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?





RE: UV LEDs
I think you are going to have problems finding that in a LED at this time. What kind of use are you up to this time? :)
The reason I ask is because you may need to use a crystal frequency shifter. This could allow you to use a more common LED to drive it - But this could have dimensional limitations.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: UV LEDs
htt
You'll also find a number of patents on them, but no real substance to the work.
Are you sure you need shortwave? Give us an idea of the application and we can probably help you sort it out.
Dan - Owner

http://www.Hi-TecDesigns.com
RE: UV LEDs
I was trying to define nM ranges to see what the cost point would be for LEDs. Customer would like a selling point under $40, and I am envisioning a flashlight like device, with 2-3 rechargeable AA batteries. Seems similar devices are only long wave, and there's probably a reason for it.
"Art without engineering is dreaming; Engineering without art is calculating."
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?
RE: UV LEDs
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: UV LEDs
http://members.misty.com/don/uvbulb.html
Which kind of shows the conniptions required for short UV.
http://w
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: UV LEDs
"Art without engineering is dreaming; Engineering without art is calculating."
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?
RE: UV LEDs
(related)
Ever read?
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One of the Best SciFi books ever.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: UV LEDs
"Art without engineering is dreaming; Engineering without art is calculating."
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?
RE: UV LEDs
Offer him to design an UV-lamp with hand-driven generator.
( look Mom -- no battery ! )
----------------------------
Please read FAQ240-1032
My WEB: <http://geocities.com/nbucska/>
RE: UV LEDs
One other best is "black cloud" by Fred Hoyle
----------------------------
Please read FAQ240-1032
My WEB: <http://geocities.com/nbucska/>
RE: UV LEDs
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: UV LEDs
Tell me how did you like it.
----------------------------
Please read FAQ240-1032
My WEB: <http://geocities.com/nbucska/>