This sunglass named Infinite Energy: SIG is not just another glass to protect your eyes from the harmful ultra-violet rays. Well…yes, it does that, but a lot more. The “Self-Energy Converting Sunglasses” does something very unique. The dark lenses you see are actually dye solar cells. These  solar cells helps to collect solar energy and converts it to electrical energy, that generates enough power to run various small electronic devices. As described by designers Hyun-Joong Kim & Kwang-Seok Jeong, the dye solar cell is a “cheap organic dye [used with] nano technology [providing] cheap but high energy efficiency.”

[source: yankodesign.com]