mikeylikesit
Plastic
- Joined
- Sep 1, 2022
What's odd about AD helmets is there seems to be very little emphasis on the actual performance of the lens. In other words, how quickly does it react to the arc? It would seem that a helmet which reacts twice as fast as another would have a great impact on how much arc burns your eyes before it goes dark.
if youve noticed on any of the higher end helmets ,it may have purple or blue outer glass (depending what angle you look at it ). thats the band pass which always filters the uv/ir. only visible light passes through. so even getting flashed , your not getting hit with uv/ir.
ill post a link to a good article where a represenative from baldor says the eye cant tell the difference from one reaction time to another once the speed is faster than .2milliseconds. all the name brand helmets have reaction times alot faster than .2ms. miller are about .05ms. optrel about .1ms i believe. all the various speedglas models are .1ms.
if your not good at math then ill explain. optrel and speedglas are 2x faster than the .2ms thresh hold that aparently the eye cant even tell a difference. miller is even 2x faster than optrel and speedglas.
the super high reaction times are likely for company marketing and bragging rights is what im thinking.
Welding helmets, with color
These days welders can peer through welding helmets and see the world in color.
www.thefabricator.com