A newly unearthed patent filed by Xiaomi has depicted a curious method for solving the issue of having camera sensors on the front and the rear of a smartphone. In this instance, Xiaomi has chosen a pop-up mechanism that features a "reflecting member". Such a kooky contraption could end up being implemented with the long-awaited Mi Mix 4.
https://www.notebookcheck.net/Xiaomi-s-latest-kooky-patent-employs-less-smoke-and-more-mirrors-to-give-a-potential-Mi-Mix-4-the-camera-free-display-and-unblemished-rear-it-deserves.515795.0.html