Vehicle Lamp Micro-LED Array for Uniform, Low-Glare Illumination
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Solution Overview
Problem
Conventional vehicle lamps using LEDs or LDs struggle to achieve high uniformity of output while maintaining proper illumination.
Innovation Solution
A vehicle lamp utilizing a light generation unit with an array of micro-LED chips and a lens configured to redirect light beams, where the lens has a vertical cross-section inscribed within the divergence angle of the beams, allowing for uniform light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LEDs or LDs are used in vehicle lamps, then the lamp can provide basic illumination, but the uniformity of light output is poor and glare is generated
Solution Approach 1:
The light generation unit is divided into multiple micro-LED chips arranged in a specific array pattern, with different groups (first group, second group, third group) positioned at different vertical locations. Each group emits light in specific directions, and the lens redirects these segmented light beams to achieve uniform distribution and minimize glare.
Solution Approach 2:
Different groups of micro-LED chips are assigned different functions based on their vertical positions. The first group emits upward light, the second group emits forward light, and the third group emits downward light. The lens is designed with specific curvature to redirect light from each group appropriately, creating local optimization of light distribution quality.
2Illumination intensity
If a lens is used to redirect light beams from micro-LED chips, then uniform light distribution is achieved, but the device complexity increases
Solution Approach 1:
The lens is designed with a curved surface having a specific radius of curvature. This curvature enables the lens to effectively redirect light beams from multiple micro-LED chip groups in different directions, achieving uniform light distribution while maintaining a relatively simple single-component structure rather than requiring multiple optical elements.
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 lamp achieves improved uniformity of light output, minimizing glare and ensuring proper illumination for various vehicle lighting functions.
Implementation Method 1
a light generation unit comprising an array provided with a plurality of micro-light emitting diode (micro-LED) chips arranged therein
Implementation Method 2
a lens configured to redirect light beams generated by the light generation unit
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3B
AI summary
Implementations disclosed herein enable a lamp (100) for a vehicle (10) that is comprising: a light generation unit (160) comprising an array (200) provided with a plurality of micro-light emitting diode (micro-LED) chips (920) arranged therein; and a lens (1310) configured to redirect light beams generated by the light generation unit (160), wherein the light generation unit (160) is configured to output a plurality of beams having a divergence angle defined in a vertical direction, and wherein the lens (1310) is arranged to have a largest vertical cross-section thereof inscribed in the divergence angle of the beams that are output from the light generation unit (160).