[TheForge] Vision damage and welding shields pt 2

Mon Jan 13 13:44:01 2003

Hey Dan,
Right on.
 I haven't yet met anyone who has used the D/G glasses or face shields who
doesn't swear by them for forge welding.
Chuck
----- Original Message -----
From: "Dan Scheid" <[email protected]>
To: <[email protected]>
Sent: Monday, January 13, 2003 10:48 AM
Subject: Re: [TheForge] Vision damage and welding shields pt 2


> ok I'm not a scientist I only have experience. I have been welding
Damascus
> for about 10 years now. I suffer from migraines and if you know migraines.
> you know that they are a Light active/sensitive condition. this is what
I've
> learned. I work almost entirely in a gas . if I weld all day without
glasses
> I've a mid headache the next day. if I use green welding glasses I  have a
> major migraine the next day. If I use didymium I have no headache. and if
I
> use didymium/gold glasses I can see the different metals at welding heat.
> this is my experience
> Dan Scheid
> Flying horse forge
> http://home.earthlink.net/~chevalvolant/flyinghorseforge.html
> No, this isn't quite true.  That same wavelength is produced by almost all
> fires because sodium is so common.  A clean gas flame is blue, but the
> flames you see in a gas forge (as well as a coal forge) are yellow due to
> the sodium present.  The didymium lens filters out this bright yellow
light.
>
> Now whether that will help you with your forging is another question
> entirely.  I would think that once you get used to it, it would help you
see
> the true heat color past that bright sodium flare.  I haven't tried it
> myself.
>
> Bruce
> NJ
>
> >>> [email protected] 01/11/03 09:18PM >>>
> Didymium is used to filter out a specific wavelength of light produced by
> sodium glass.
> If you don't work with sodium glass, there's no need for didymium lenses.
> None.
>
>
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