Motor Vehicle Headlamp Dynamic Indicator Design
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Solution Overview
Problem
Current motor vehicle headlamps lack advanced functionality and efficient lighting effects, particularly in achieving dynamic directional indicators like sweeping turn signaling, which limits their ability to provide enhanced visibility and safety features.
Innovation Solution
The design incorporates multiple additional lamps arranged behind a light-guiding element, which are switched on sequentially to create a dynamic directional indicator, utilizing a nondestructively detachable front housing and an external lens with optimized light-passage regions to minimize parasitic light, allowing for enhanced lighting effects and reduced costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple additional lamps are arranged behind the light-guiding element to create dynamic directional indicators, then the lighting functionality and visibility are improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent applies multi-functionality by enabling the headlamp to perform multiple lighting functions (daytime running light, directional indicator, low beam, high beam) using a unified optical system. The light-guiding element serves multiple purposes: guiding light from main light sources and additional lamps, creating dynamic directional indicators, and enabling sweeping turn signaling. This allows one component to fulfill multiple lighting roles, improving versatility without proportionally increasing complexity
Solution Approach 2:
The patent segments the headlamp into modular components: a housing with main light sources, a separate front housing with additional lamps arranged behind the light-guiding element, and an external lens. The front housing can be nondestructively detached, allowing independent assembly and maintenance of different lighting functions. This segmentation enables flexible configuration of multiple additional lamps without requiring complete system redesign
2Area of stationary object
If multiple additional lamps are arranged behind the light-guiding element to create dynamic directional indicators, then the illuminated area and lighting effects are improved, but the manufacturing cost increases
Solution Approach 1:
The patent merges the additional lamps with the light-guiding element into an integrated assembly where multiple lamps are positioned behind the light guide. This merging allows the light-guiding element to simultaneously guide light from main sources and additional lamps, creating expanded illuminated areas for dynamic directional indicators and sweeping turn signaling. The integrated design reduces the need for separate optical components for each function, potentially lowering overall manufacturing costs despite using multiple lamps
Solution Approach 2:
The patent implements dynamic lighting effects by arranging multiple additional lamps behind the light-guiding element that can be activated sequentially or simultaneously. This dynamic configuration enables sweeping turn signaling where the illuminated area expands across the light guide, creating enhanced visibility effects. The dynamic capability is achieved through controlled activation of existing lamp components rather than requiring complex mechanical moving parts
3Use of energy by moving object
If the front housing is designed as a closed housing with multiple additional lamps, then the light utilization is optimized, but the sealing complexity and manufacturing cost increase
Solution Approach 1:
The front housing is designed as a closed housing that serves multiple functions: it houses the additional lamps, provides structural support for the light-guiding element, and creates a sealed environment for optimized light utilization. The closed design ensures that light from multiple additional lamps is efficiently directed through the light guide without leakage, maximizing light utilization for dynamic directional indicators while maintaining a cost-effective sealed structure
4Object-generated harmful factors
If the external lens is designed with light-passage regions and opaque regions, then parasitic light is suppressed, but the manufacturing complexity increases
Solution Approach 1:
The external lens is designed with local quality variations, featuring specific light-passage regions with higher transparency and opaque regions for light blocking. This local differentiation allows the lens to selectively transmit light from additional lamps through designated paths while blocking parasitic light in other areas. The localized optical property modification achieves effective parasitic light suppression through targeted transparent and opaque zones within the lens 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
This configuration enables the creation of a dynamic directional indicator with increased illuminated area and reduced costs, while maintaining optimal light utilization and suppressing unwanted scattered light, thereby enhancing the motor vehicle's visibility and safety features.
Implementation Method 1
a light-guiding element is arranged in or on the front housing, which light-guiding element at least partially fills the interior of the front housing and is designed to guide light rays that are coupled in by means of the at least one additional lamp
Data Source
AI summary
A motor vehicle headlamp that includes a housing in which at least one main light source is arranged. Detachably attached to an external lens of the motor vehicle headlamp is at least one front housing, which has a light-guiding element and lamps for coupling light rays into the light-guiding element. The light rays are coupled out of the light-guiding element through an output structure. Further additional lamps that can give off light rays are arranged side by side in front of the external lens. The light rays given off by the lamps pass through the external lens and the front housing in the direction of an outside environment.