Thanks for the inquiries. Is there just a general rule of thumb for how far apart the RI's can be for the majority of materials or is there always other factors that can play a significant role in how well a material will "disapear" into another?
I was wondering how close 2 refractive Indexes have to be in order to be not visible? I currently have a glass fiber at 1.521 and am researching resin systems to match and so far have 2 - one at 1.506 and the other at 1.4736. I know which one is better (1.506), but is it close enough to...