How to illustrate a piece of glass (transparent) and show how it manipulates light (invisible)?

This conundrum wrapped lip in a mystery was presented to us by Essilor as they worked on the redesign of their product B2B website. Its tough one to find a way to communicate the product story, often quite complicated, in a simple and consistent fashion, often needing to show a multiple of different features.

We came up with a number of style ideas in a range of colours before the final design was arrived at. Brand colours were consistently applied to artwork created by an artists and our in-house CGI expert using graphics and CAD software.