Concave Micro-LED Vehicle Lamp Optics for Uniform Light Output
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Solution Overview
Problem
Existing vehicle lamps using multiple micro LED chips face challenges in enhancing light output efficiency while ensuring visibility and signal transmission, requiring a new structural design.
Innovation Solution
A vehicle lamp incorporating a parabolic array module with a concave shape and a lens system having convex optical power to uniformly output light, reducing the size of the lens system and ensuring sufficient light output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a plurality of micro LED chips are used as light sources, then light output efficiency can be enhanced, but the structure becomes more complex and uniform light distribution becomes difficult to achieve
Solution Approach 1:
The array module is designed with a concave shape that matches the focal characteristics of the convex lens system. This curvature arrangement allows multiple micro LED chips to be positioned at optimal locations relative to the lens, enabling uniform light distribution while maintaining high light output efficiency. The concave-convex pairing creates a focused optical path that simplifies the overall structure compared to flat array configurations.
Solution Approach 2:
Different regions of the array module are designed with specific concave curvature characteristics that correspond to the local requirements of the convex lens system. This localized optimization allows each micro LED chip to contribute effectively to the overall light output while maintaining uniform distribution across the beam pattern, resolving the complexity issue associated with multiple chips.
2Volume of stationary object
If a conventional flat array module is used, then the lens system size increases, but uniform light distribution is achieved more easily
Solution Approach 1:
The concave array module geometry is specifically designed to work with the convex lens system, creating a compact optical arrangement. The curved configuration allows the light paths from multiple micro LED chips to converge more efficiently through the lens, reducing the required lens diameter and overall system volume while maintaining uniform light distribution across the output beam.
3Volume of stationary object
If the array module is made compact, then the overall lamp size is reduced, but sufficient light output becomes difficult to secure
Solution Approach 1:
The concave array module paired with the convex lens system creates a compact yet efficient optical design. The curved geometry allows micro LED chips to be positioned in a space-efficient arrangement that maintains adequate spacing for light emission, while the convex lens efficiently collects and distributes the light from this compact configuration, ensuring sufficient light output despite the reduced overall size.
Solution Approach 2:
The optical parameters of the system are optimized through the concave-convex configuration, including focal lengths, curvature radii, and chip positioning. These parameter adjustments enable the compact lamp design to achieve sufficient light output by maximizing the efficiency of light collection and distribution within the constrained volume.
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 solution achieves uniform light distribution, reduces lens system size, and maintains sufficient light output using multiple micro LED chips.
Implementation Method 1
a lens system configured to change a waveform of light output from the array module
Implementation Method 2
an array module having a plurality of micro Light Emitting Diode (LED) chips disposed thereon
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
Disclosed is a lamp (100) for a vehicle, including: an array module (200m) having a plurality of micro Light Emitting Diode (LED) chips disposed thereon and having a shape concave in a first direction; and a lens system (1040) configured to change a waveform of light output from the array module (200m), and having a optical power of a convex nature.