Question

thingiverse

You're all familiar with sunglasses featuring gold and silver mirror-coated lenses that offer perfect visibility, yet conceal your eyes from view. I'm not here to review a product or promote a specific brand, but rather pose a question: If you wanted to create a helmet visor akin to those found in the Spartan design from Halo or Daft Punk's iconic helmets, what process would you use for that mirrored coating? I've researched various terms related to coatings and gold/silver finishes, but most yield non-transparent or opaque results. Wearing such a helmet would be like wearing a blindfold, unless you have a clear visor in place. So, how do you achieve this seethrough effect? The only relevant information I found was from NASA, which successfully coated a visor with a thin layer of gold, but unfortunately, no step-by-step guides were provided. The STL file for the Halo Visor is courtesy of @Big_red_frog.