Automotive Headlamp Optical Modules for Right-Left Traffic Adaptation
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Solution Overview
Problem
Existing headlamp systems require complex mechanisms with moving parts to switch between different light beam cut-offs for traffic on the right and left, increasing complexity and risk of malfunction.
Innovation Solution
A headlamp system comprising multiple optical modules that can generate beams with different cut-offs, allowing for the creation of various light beams by combining sub-beams emitted by these modules, eliminating the need for moving parts by switching the light sources on or off, enabling simple and safe emission of beams with different cut-offs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mobile occultation screens are used to switch between different light beam cut-offs, then the headlamp can adapt to different traffic conditions (right or left traffic), but the device complexity increases due to additional moving parts and actuators
Solution Approach 1:
The headlamp is divided into multiple independent optical modules, each capable of generating light beams with different cut-off characteristics. By selectively activating specific modules, the system can adapt to different traffic conditions without requiring moving parts. This segmentation replaces the need for mobile occultation screens with a modular optical architecture.
Solution Approach 2:
The patent replaces the mechanical system of mobile occultation screens and actuators with an electrical control system that selectively activates different optical modules. This substitution eliminates moving parts while maintaining the ability to switch between different beam patterns for right or left traffic conditions.
2Adaptability or versatility
If mobile occultation screens are used to create different cut-offs, then the headlamp can switch between right and left traffic modes, but the reliability decreases due to increased wear and malfunction risks
Solution Approach 1:
The system achieves dynamic adaptability between different traffic modes through electrical control of optical module activation rather than mechanical movement. This allows the headlamp to switch between right and left traffic modes on demand without the wear and reliability issues associated with moving parts.
Solution Approach 2:
By replacing the mechanical switching mechanism with an electrical control system that activates different optical modules, the patent eliminates wear and malfunction risks associated with moving parts while maintaining full adaptability between traffic modes.
3Reliability
If multiple optical modules are used to generate different beam types, then the headlamp can emit beams with different cut-offs without moving parts, but the device complexity increases due to multiple light sources
Solution Approach 1:
Each optical module is designed to be multi-functional, capable of contributing to different beam patterns when combined with other modules. This universality allows the system to achieve multiple beam types and traffic mode adaptations without requiring a proportional increase in overall system complexity.
Solution Approach 2:
The patent combines multiple optical modules in a coordinated manner where their light beams are superimposed to create composite beam patterns. This merging approach allows the system to achieve complex lighting functions through the combination of simpler modular units, managing overall complexity through integration.
Data Source
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AI summary
The device has a set of optical modules, each comprising a light source. One of the optical modules generates a first flat cut-off light beam (F1), and another optical module generates a partially oblique cut-off beam (F2), where the device emits total beams (Fg). One of the total beams is superposition of two of the beams emitted by the optical modules. A third optical module generates a second cut-off light beam (F3) approximately oblique and different from the partially oblique cut-off beam. An independent claim is also included for a method for installing a lighting device or a set of lighting devices.