Vehicle Light Projection for Pedestrian Path Communication

The patent introduces a projection mapping system as an intermediary communication medium between the vehicle and external users (pedestrians and drivers). The system projects visual information onto the environment to convey vehicle intentions, creating a new communication channel that enhances safety without requiring direct modification of existing vehicle-pedestrian interaction mechanisms.

The patent replaces traditional mechanical or electronic communication methods (such as horn signals, turn indicators, or direct visual contact) with optical projection technology. This substitution uses light-based projection mapping to display vehicle intentions visually in the environment, providing a more intuitive and comprehensive communication method that improves safety while managing system complexity through technological advancement.

The patent transitions communication from traditional two-dimensional displays (screens, indicators) to three-dimensional spatial projection in the environment. By projecting visual information onto the ground, walls, or other surfaces in the physical space, the system creates immersive and contextual communication that enhances effectiveness. This dimensional expansion allows richer information conveyance while the projection technology itself helps manage costs by using light rather than physical materials.

The patent utilizes parameter changes in light properties (intensity, color, pattern, position) to encode different vehicle intentions and communication messages. By dynamically adjusting these optical parameters, the system conveys complex information efficiently. This approach improves communication effectiveness while keeping the system relatively simple and cost-effective, as it relies on modulating light parameters rather than requiring multiple separate communication devices.