Multi-Function Vehicle Light Assembly Integrating LED Arrays
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Solution Overview
Problem
Existing vehicle light assemblies require multiple units to accommodate tail, brake, turn, and reverse lighting functions, which increases space and complexity, while also needing to comply with safety regulations for illuminated surface area.
Innovation Solution
A multi-function vehicle light assembly with a compact design that integrates tail, brake, turn, and reverse lighting using a single unit, featuring a substantially enclosed body housing with a clear lens and printed circuit board housing three LED arrays: one for red tail lighting, another for red brake and turn signaling, and a third for white reverse lighting, with radially extending fingers to enhance light projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate light units are used for tail, brake, turn, and reverse lighting functions, then each function can be independently implemented, but the total space occupied and device complexity increase
Solution Approach 1:
The patent combines multiple separate light units (tail light, brake light, turn signal, reverse light) into a single integrated light assembly. The housing contains multiple LED arrays that can be independently controlled to perform different lighting functions, thereby reducing the total number of separate components while maintaining full functional capability.
Solution Approach 2:
The single light assembly is designed to perform multiple functions through different LED arrays and lens configurations. The same housing and mounting structure support various lighting modes (tail, brake, turn, reverse), making the device universal and eliminating the need for multiple specialized units.
2Illumination intensity
If multiple separate light units are used for tail, brake, turn, and reverse lighting functions, then each function can be independently implemented, but the total illuminated area is reduced relative to the total space occupied
Solution Approach 1:
By merging multiple light units into one integrated assembly, the patent maximizes the use of available space within the housing. The LED arrays and lenses are arranged to provide comprehensive illumination coverage without the gaps and redundant structures that would exist if multiple separate units were installed.
Solution Approach 2:
The patent utilizes three-dimensional space efficiently within the single housing structure, arranging LED arrays and lenses in different spatial zones to achieve maximum illuminated surface area while minimizing the overall footprint on the vehicle.
3Area of stationary object
If a single integrated light assembly is used to maximize illuminated area, then space is minimized and functions are integrated, but the design must comply with safety regulations for illuminated surface area
Solution Approach 1:
Different regions of the light assembly have specialized optical properties - red lenses for tail/brake/turn functions, clear lenses for reverse functions. This local differentiation ensures that each function meets its specific regulatory requirements for color and illumination while maintaining overall compactness.
Solution Approach 2:
The patent uses different LED types (red vs. white) and lens configurations to vary optical parameters (color, intensity, distribution) within the single assembly, ensuring compliance with diverse safety regulations for different lighting functions while maintaining a unified compact structure.
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 maximizes illuminated area while minimizing the total space, effectively integrating multiple lighting functions into a single unit that meets safety regulations and can be used as either original or aftermarket equipment.
Implementation Method 1
Arranged on the printed circuit board are at least three LED (light emitting diode) arrays generating light, each LED array having a plurality of LEDs
Implementation Method 2
The second clear lens portion has a plurality of radially extending fingers which act as light projection guides in order to transmit light
Data Source
AI summary
A multi-function vehicle light assembly. The light assembly includes a substantially enclosed housing body with an open top. A lens covers the open top, the lens having a first red lens portion and an adjacent second clear lens portion. A first LED array generates red light for vehicle tail lighting, with the first array located beneath the first lens portion. A second LED array generates red light for vehicle brake lighting, with the second array located beneath the first lens portion. A third LED array generates white light for vehicle back-up lighting, with the third array located beneath the second lens portion.