h a l f b a k e r yWarm and Fussy
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
browse anonymously,
or get an account
and write.
register,
|
|
|
By watching out of the corner of their eyes, I
have seen construction workers turn welding
electrodes into chicken shit on structural steel.
Obviously the UV light doesn't notice that they
are taking a sneaky look without any kind of dark
glass.
So, spectacles with a fresnel lens basically
do
the same job, but the wearer can look straight
ahead in comfort, knowing that he can look at
anything without the laws of physics noticing.
Please log in.
If you're not logged in,
you can see what this page
looks like, but you will
not be able to add anything.
Annotation:
|
| |
How do you look out of their eyes, Ling? Are you looking out of mine? Did you see where I left my fanny pack? The one with the squirrels. Pictures of squirrels, not containing squirrels. |
|
| |
"Bungston, if only you could see what I've seen with your eyes ! " |
|
| |
Attenuation is what most welding goggles do. But ideally they should do dynamic range compression, cutting out the brightest light but letting ordinary light through. So pretending that LCD autodimming masks don't exist, wouldn't it be great to use some material that responded in a non-linear way?? |
|
| |
Actually, you only need to block the UV for safety -
and plenty of materials will block UV completely
whilst being completely transparent to visible
light. |
|
| |
The other function of welder's goggles is to
prevent dazzle, so you can see immediately after
welding instead of waiting for three minutes for
your eyes to adjust. |
|
| |
At a pinch, it's reasonable and safe to wear UV-
protective (but otherwise normal) glasses, and
squint hard to eliminate most of the dazzle. |
|
| |
Well it depends. I mostly do acetylene which is pretty tame and sunglasses are probably sufficient, mig and tig are middle ground but with arc it's so bright that even with the correct safety gear it hurts my eyes if I don't squint. Also any exposed skin gets burnt really quickly, if sleeves/gloves aren't lined up you get burns all around your wrist. |
|
| |
I wonder how expensive it would be to make a welding mask out of NLO crystal. |
|
| |
//Also any exposed skin gets burnt really quickly// |
|
| |
Yes - good point; I was thinking about eyes only. |
|
| |