Pixelated Vehicle Lamp Shading for Vibration-Stable High Beams

The patent segments the illumination area into multiple controllable regions using an LED array, where each LED or group of LEDs can be independently controlled to create localized shading areas. This allows selective dimming of specific regions that would cause glare while maintaining illumination in other areas, thus resolving the contradiction between visibility and glare prevention.

The patent applies local quality by creating non-uniform illumination distribution across the beam pattern. Specifically, it dims only the portions of the beam that would illuminate oncoming vehicles or pedestrians (local regions) while maintaining full intensity in areas that provide useful visibility without causing glare. This is achieved through individual LED control and dynamic shading area adjustment.

The patent implements dynamics by making the shading control adaptive to vehicle vibration. The control unit dynamically adjusts the vertical position of the shading area based on detected vibration characteristics, allowing the system to maintain stable effective shading despite vehicle movement. This dynamic adaptation resolves the instability caused by vibration while preserving glare reduction benefits.

The patent employs feedback mechanisms where sensors detect vehicle vibration and the control unit uses this information to adjust the shading area position in real-time. This closed-loop control ensures that the shading remains effective for glare reduction despite vertical vibrations, maintaining both glare reduction performance and stability.

The patent uses segmentation by dividing the illumination system into individually controllable LED units, allowing precise control of shading boundaries. Each LED or small group of LEDs can be independently dimmed or switched off to create sharp shading edges, achieving high precision without requiring complex mechanical moving parts.

The patent replaces complex mechanical shading systems (such as moving mirrors or physical shutters) with electronic control of LED arrays. This substitution achieves equivalent or superior shading precision through electronic means, significantly reducing mechanical complexity while maintaining or improving shading accuracy.