From the start I would like to acknowledge Gogglerman for his exceptional work it was the basis for my desire to make these.
The whole process took at least 4 weeks at about 6 hours a day, I will not attempt to show all the work, but hope to explain how I made the super thin Iris in the goggles, the final product has an additional lens and filter which was not needed if you only wanted an Iris pair of glasses.
Step 1: The Iris construction
I did not use an eight shutter design as I tried in the cardboard test model.
the pictures are proof of concept they are straight in the picture but will end up as circular in the finished product.
you can see from those pics the iris need only be 3 layers of metal thick. about 1/4 inch including the pivot posts.
Step 2: Iris set up
The second picture shows how it works the rest is just getting a good fit and making the case to hold it all.
The last picture is of a degree checker, I got tired of trying to use dividers to figure out points on the circumference,
if you notice there are six holes in this peice the iris I used in this project are actually rejects from the real goggles I should have done next month.