Thank you for the info. This is a very good looking helmet, would love to try dive a helmet like this.
I don't know anything about impact of IR. But I very surprised to see a diving helmet with a spherical view port.
I have dived with a Piel EP 200 from the 70's that also has a spherical view port, and it takes a good 10 to 20 dives to get use to the spherical distortion. The last helmet I have seen with a spherical view port is the famous Lama bubble helmet.
Thank you again and keep us posted,
You can see what the LAMA and PIEL helmets look like on my website.
Dominique
Frogman Museum