Re: UV LED
From: jakdedert (jdedert_at_bellsouth.net)
Date: 08/20/04
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Date: Fri, 20 Aug 2004 12:26:35 -0500
Bob Urz wrote:
> Jerry G. wrote:
>> The UV frequency used for your application is 365 nm. You will have a
>> difficult time to have a UV LED powerful enough to be practical for
>> automotive leakage inspection. You would have to invest in the
>> proper lamp unit for this. If you are to use this in an environment
>> where the ambient light is not too bright, you can get away with an
>> 8 Watt or so UV tube type lamp. If you are going to use this in a
>> brightly lit environment, you would be best to get an inspection
>> lamp of upwards of 50 Watts. These lamps have the proper band filter
>> built in, to make sure that the proper wavelength for your
>> application is leaving the lamp unit.
>>
>> When using industrial UV lamps, even in the low UV spectrum, it is
>> strongly suggested to use the proper UV protection eyewear. Standard
>> specials with a UV rating are not good enough for these types of
>> high intensity UV lamps. There would be also too much side light
>> getting through. The proper UV goggles cover the eye area in a
>> manner that there is no UV leakage to the eyes at all.
>>
>> http://uvp.com/new/index.php?module=ContentExpress&func=display&ceid=111
>>
> Well, the one i saw in the autoparts store used two AAA batteries and
> had a SINGLE LED in the end. Like a small mag light only with a UV
> led. If it was usable, i should be able to duplicate it. Finding
> the UV LED's through normal replacement part sources is a little
> tougher. MCM did not have them listed in there catalog.
> There are some specialty places that sell them.
>
> My kids have a incandescent bulb black light i might try to see if it
> works.
>
I have a small 6" flourescent one that I snagged when my wife threw it out.
I think it was originally designed for drying nail polish....
jak
> Bob
>
>
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