Vehicle Light Module Beam Deflection for Higher Perceived Resolution
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Solution Overview
Problem
Current motor vehicle light modules have limited resolution and rate of change in light emission, restricting the adaptability and quality of segmented light distributions, especially in time-variable scenarios.
Innovation Solution
Incorporating a deflection unit that temporarily increases the native resolution by beam deflection, allowing setpoint images with higher resolution to be converted into low-resolution images that match the module's capabilities, and alternating their emission to enhance the visual perception of light distributions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the native resolution of the motor vehicle light module is increased to improve display quality, then the resolution improves, but the device complexity and cost increase
Solution Approach 1:
The patent applies beam deflection technology to dynamically adjust the light beam position, enabling a single light module to cover multiple pixel positions. The deflection unit changes the emission direction of light segments in real-time, creating the visual effect of higher resolution without physically increasing the number of light segments or their spatial density.
Solution Approach 2:
The deflection unit acts as an intermediary between the light segments and the display surface. It mediates the light path by temporarily deflecting beams to different positions, enabling one physical light segment to effectively control multiple virtual pixel positions through temporal multiplexing.
2Speed
If the rate of change in light emission is increased to improve time-variable display performance, then the display smoothness improves, but the interface limitations and device complexity worsen
Solution Approach 1:
The patent employs periodic beam deflection at frequencies above the human visual threshold (e.g., 60 Hz or higher). The deflection unit rapidly switches between different beam positions in a periodic manner, creating the perception of simultaneous multi-position light emission while actually using temporal multiplexing of a smaller number of physical light segments.
Solution Approach 2:
The system dynamically adjusts beam positions at high speeds through the deflection unit, enabling rapid changes in light emission patterns without requiring a proportional increase in the number of controllable light segments. The dynamic deflection creates the effect of higher temporal resolution.
3Adaptability or versatility
If more light segments are added to improve resolution and adaptability, then the light emission quality improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
Each light segment is given multi-functionality through the deflection unit, allowing a single light segment to serve multiple virtual pixel positions by deflecting its beam to different locations. This universal approach enables a smaller number of physical light segments to achieve the functional equivalence of many more segments, improving adaptability without proportional complexity increase.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method improves the display quality of time-variable light distributions, enabling smoother and more dynamic light emission even with limited setpoint images per second, effectively increasing perceived resolution beyond the native capabilities of the motor vehicle light module.
Implementation Method 1
a deflection unit with which a native resolution of the motor vehicle light module can be visually increased by at least temporary beam deflection by means of the deflection unit
Data Source
AI summary
Methods are provided for display-optimizing control of a motor vehicle light module (1), wherein the motor vehicle light module is configured to emit a segmented light distribution with individually controllable light segments (51, 53), wherein the motor vehicle light module includes a deflection unit (4) with which a native resolution of the motor vehicle light module can be visually increased by at least temporary beam deflection by means of the deflection unit, wherein the motor vehicle light module is configured to receive setpoint images (S1, S2, S3, Sn, Sn+1) from a superordinate control unit (10), which setpoint images respectively correspond to a light distribution and have a resolution that exceeds the native resolution of the motor vehicle light module. The methods improve the light emission of a segmented and time-variable light distribution by processing the setpoint images in several steps.