Vehicle Lamp Micro-LED Array Light Distribution Control
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Solution Overview
Problem
Existing vehicle lamps, particularly rear combination lamps, face challenges in efficiently utilizing micro Light Emitting Diode (micro-LED) elements to generate sufficient light distribution patterns that meet safety and regulatory requirements while minimizing driver eye strain and enhancing signal transmission.
Innovation Solution
A vehicle lamp system utilizing an array module of micro-LED elements, controlled by a processor to form specific light distribution patterns with varying luminous intensity across different points, ensuring progressive reduction from the central point to the peripheral points, and adjusting energy supply to achieve vertically and horizontally symmetric patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If micro-LED elements are used to generate light distribution patterns, then energy efficiency and longevity are improved, but achieving sufficient light output and meeting regulatory requirements becomes more difficult
Solution Approach 1:
The lamp divides the light generation function into multiple independent micro-LED elements arranged in arrays, allowing each element to contribute to the overall light output while maintaining energy efficiency. The segmentation enables precise control of light distribution across different regions (central, intermediate, peripheral) to meet regulatory requirements.
Solution Approach 2:
Different regions of the light distribution pattern are assigned different luminous intensity characteristics. The central region has higher intensity for visibility, intermediate regions have moderate intensity, and peripheral regions have lower intensity to minimize glare. This local quality differentiation allows the system to meet both energy efficiency and light output sufficiency requirements.
2Ease of operation
If uniform light distribution is provided, then simplicity of control is maintained, but driver eye strain increases due to excessive peripheral light
Solution Approach 1:
The light distribution pattern applies different luminous intensity levels to different spatial regions. The central region maintains high intensity for signal visibility, while peripheral regions use reduced intensity to minimize glare and eye strain. This local differentiation resolves the contradiction between control simplicity and reducing harmful effects.
Solution Approach 2:
The system proactively reduces light intensity in peripheral regions before it can cause driver eye strain. By pre-establishing a light distribution pattern with lower peripheral intensity, the harmful effect of glare is prevented before occurring, while maintaining uniform control logic across all regions.
3Loss of information
If high luminous intensity is used throughout the light distribution pattern, then signal transmission strength is improved, but energy consumption increases
Solution Approach 1:
The system assigns higher luminous intensity to the central region where signal transmission is most critical for visibility and recognition. Peripheral regions use lower intensity where signal strength requirements are less stringent. This local quality differentiation optimizes energy consumption while maintaining sufficient signal transmission strength.
Solution Approach 2:
The system applies high luminous intensity only partially to the regions where it is most needed (central area for signal transmission) rather than uniformly across the entire pattern. This partial application of high intensity reduces overall energy consumption while maintaining adequate signal strength where critical.
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
The system secures sufficient light output for vehicle operations, minimizes driver eye strain, and enhances signal transmission by forming tailored light distribution patterns that comply with vehicular regulations.
Implementation Method 1
a light generation unit including an array module on which a plurality of micro Light Emitting Diode (micro-LED) elements is disposed
Data Source
AI summary
A lamp for a vehicle includes a light generation unit with an array module having a plurality of micro Light Emitting Diode (micro-LED) elements. The lamp also includes at least one processor and a computer-readable medium having stored thereon instructions that, when executed, cause the at least one processor to: control the light generation unit to form a light distribution pattern that, when projected on a vertical plane at a first distance, has a luminous intensity that is progressively smaller from a central point closer to a center towards a peripheral point further from the center. Controlling the light generation unit to form the light distribution pattern includes: controlling at least one first micro-LED element to generate a first luminous intensity at the central point, and controlling at least one second micro-LED element to generate a second luminous intensity at the peripheral point.