[TheForge] Re: Cheap Autodarkening Welding Helmet.

Mon Aug 11 10:02:00 2003

Um... Only if you're fluorescent? :-D

Aaron

At 07:10 AM 8/11/2003 -0400, you wrote:
>Ahh, now I am illuminated!
>
>Steve
>
>Kenneth Mayer wrote:
>>>Date: Sun, 10 Aug 2003 22:19:59 -0400
>>>From: Steve Smith <[email protected]>
>>
>>[snip]
>>
>>>>A quick go/no-go test for UV absorption is to look at a UV light source
>>>>through the lens/shield.  The light source souuld should appear dark.
>>>
>>>I agree that the front clear plastic shield should stop the UV.
>>>You can't tell anything, however, about UV by looking--UV is not visible
>>>to the human eye.
>>
>>That's what I get for typing too fast...   If you shine the UV source
>>against an object that is fluorescent under UV, then put the plastic shield
>>between the source and the object, and will no longer fluoresce.
>>Ken
>>:-)
>>
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