A team from the University of Sichuan won the Red Dot Design award for a concept design called "Lumigrid" -- a bike-light that projects a grid on the ground ahead of the rider, making terrain irregularities easy to spot:
Lumigrids can project a grid onto the ground. On a flat road surface, the grid will consist of standard squares. On a rough road surface, the grids will deform accordingly. By observing the motion and deformation of the grids, the rider can intuitively understand the landforms ahead. In addition, the luminous grids can make it easier for nearby pedestrians and vehicles to notice the bicycle, reducing the likelihood of collision.
Lumigrids can be fixed onto the bicycle’s handlebars. Its power is supplied by either an internal battery or by the rotation of the bicycle’s wheels. It has only one button so that the rider can easily use it while riding. The first press will turn on the power, the second press will change the mode of projection, and holding the button down for two seconds will turn the power off. Lumigrids has three modes with different grid sizes that can be used to adapt to different situations: normal mode (140x180mm), high-speed mode (140x260mm), and team mode (300x200mm)."