Vehicle Lamp Concave Array Module Uniform Light Distribution
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Solution Overview
Problem
Current vehicle lamps using micro LED chips face challenges in enhancing light output efficiency while ensuring driver visibility and transmitting signaling information effectively, with existing designs often resulting in non-uniform light distribution and increased size.
Innovation Solution
A vehicle lamp featuring a parabolic array module with micro LED chips arranged in a concave shape, coupled with a convex lens system, which converges light and reduces the overall size of the lamp, allowing for uniform light output and improved visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple micro LED chips are used as light sources, then light output efficiency is improved, but light distribution uniformity deteriorates
Solution Approach 1:
The patent applies a concave parabolic shape to the array module housing and a convex shape to the lens, creating curved surfaces that focus and distribute light uniformly. The concave parabolic housing reflects and directs light from multiple LED chips toward the lens, while the convex lens further refines the light distribution, ensuring uniform illumination despite using multiple light sources.
Solution Approach 2:
The patent integrates the lens directly within the array module structure, nesting the optical element inside the housing. This nested configuration allows the lens to be positioned optimally relative to the LED chips, enabling effective light collection and uniform distribution while maintaining a compact overall structure.
2Ease of manufacture
If a conventional lamp structure is used, then manufacturing is simplified, but lamp size increases
Solution Approach 1:
The patent combines the housing and lens into a single integrated array module unit. The lens is positioned and secured within the housing structure, merging two previously separate components into one unified assembly. This integration reduces the overall lamp size while maintaining manufacturability through standardized molding processes for the combined structure.
Solution Approach 2:
The patent transitions from a conventional flat or linear lamp structure to a three-dimensional concave parabolic housing with a convex lens. This dimensional change allows light to be focused and distributed more efficiently in space, reducing the overall volume required while maintaining effective illumination. The curved surfaces enable compact packaging of the optical system.
3Volume of moving object
If the array module is made compact, then lamp size is reduced, but light convergence capability deteriorates
Solution Approach 1:
The concave parabolic housing and convex lens create complementary curved surfaces that work together to converge light effectively within a compact volume. The parabolic shape naturally focuses parallel light rays to a focal point, while the convex lens further concentrates the light, achieving strong convergence capability despite the reduced size of the overall module.
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 the size of the lamp, and ensures sufficient light output even with multiple micro LED chips, enhancing both visibility and signaling efficiency.
Implementation Method 1
an array module including a plurality of micro Light Emitting Diode (LED) chips that are arranged in one or more patterns and that are configured to generate light
Implementation Method 2
the array module has a shape that is concave in a first direction... a bracket having a shape that is concave in the first direction corresponding to the shape of the array module
Implementation Method 3
a lens configured to change an optical path of light generated by the array module, where the lens has at least one convex surface that is convex in a second direction opposite to the first direction
Data Source
AI summary
A lamp for a vehicle includes an array module comprising a plurality of micro Light Emitting Diode (LED) chips that are arranged in one or more patterns and that are configured to generate light, where the array module has a shape that is concave in a first direction.