Vehicle Lighting Device with Semiconductor Lamp Element Groups
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Solution Overview
Problem
Current vehicle lighting systems require multiple headlight bulbs for different functions, leading to increased costs and space requirements, and existing solutions do not efficiently integrate various lighting functions without compromising functionality.
Innovation Solution
A vehicle lighting device with at least two semiconductor light-emitting element groups, each capable of independent control, which integrates fog light, daytime running light, and high beam functions, allowing for flexible lighting configurations and reduced component count through selective activation and dimming of LEDs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate headlight bulbs are used for different lighting functions (fog lights, daytime running lights, high beams), then each lighting function can be independently optimized, but the number of components, installation space, and costs increase
Solution Approach 1:
The patent combines multiple lighting functions (fog lights, daytime running lights, high beams) into a single headlight bulb assembly. The reflector housing contains multiple semiconductor lamp elements arranged in different zones, each zone corresponding to a specific lighting function. This merging approach reduces the total number of separate bulbs and downstream optics required, thereby reducing installation space and costs while maintaining functional independence through selective activation of different lamp element zones.
Solution Approach 2:
The single headlight bulb assembly is designed to perform multiple lighting functions simultaneously or selectively. The reflector housing and semiconductor lamp elements are configured so that different combinations of lamp elements can generate fog lights, daytime running lights, high beams, and cornering lights from one universal component, eliminating the need for separate dedicated bulbs for each function.
2Device complexity
If the number of headlight bulbs is reduced to save space and costs, then installation space and component costs decrease, but the functionality and performance of individual lighting functions may be compromised
Solution Approach 1:
The semiconductor lamp elements are divided into distinct functional zones within the reflector housing: a first zone for fog lights, a second zone for daytime running lights, a third zone for high beams, and a fourth zone for cornering lights. Each zone can be independently activated or deactivated, allowing the system to provide full functional versatility while using a single integrated bulb assembly, thus reducing the number of components without sacrificing lighting function capabilities.
3Area of stationary object
If multiple lighting functions are integrated into a single device, then space requirements and component count are reduced, but the control complexity and precision required for selective activation increase
Solution Approach 1:
The semiconductor lamp elements are segmented into spatially separated functional zones within the reflector housing, with each zone physically positioned to correspond to its intended lighting function's beam pattern. This spatial segmentation simplifies control, as activating a specific zone naturally produces the desired lighting function without requiring complex control algorithms, thereby reducing control precision requirements while maintaining full functionality.
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 enables a compact and cost-effective integration of multiple lighting functions, reducing space and component requirements while maintaining functionality, and preventing dazzling of other road users by adjusting luminosity levels.
Implementation Method 1
at least two semiconductor light-emitting elements, specifically at least a first light-emitting element group and a second light-emitting element group each having at least one semiconductor light-emitting element
Data Source
Figure 1A~1B
Figure 2A~2C
Figure 3
AI summary
The vehicle lighting device (1,13,16) has at least two semiconductor lamp elements (7,8), wherein the vehicle lighting device (1,13,16) has at least one first lamp element group (5,14) and one second lamp element group (6) each having at least one semiconductor lamp element (7,8), wherein the lamp element groups (5,14,6) can be selectively activated, and the first lamp element group (5,14) has at least one fog light function.