Vehicle Headlamp Infrared Visible Light Alignment
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Solution Overview
Problem
Existing vehicle headlamp systems face challenges in accurately forming a dark portion to prevent glare to opposing vehicles, especially when infrared light lamps are separate from the headlamp, leading to increased costs and difficulty in matching the dark portion with the opponent vehicle's location.
Innovation Solution
A vehicle lamp apparatus incorporating a first visible light source, a second infrared light source, and a reflection unit that adjusts the paths of both lights to align or diverge them, using micro-reflectors and mirrors to ensure the visible and infrared lights are directed appropriately, with a controller that senses opponent vehicles and adjusts the light paths to form a dark portion on the opponent's windshield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate infrared light lamp is installed instead of integrating it with the headlamp, then the functions of visible light illumination and infrared detection are achieved, but the overall system costs increase and the dark portion cannot be precisely aligned with the opponent vehicle location
Solution Approach 1:
The patent integrates the infrared light source and visible light headlamp into a single unified apparatus. The infrared light source is positioned adjacent to the visible light source, and both share a common reflection unit (digital mirror device). This merging eliminates the need for separate installation locations, reduces overall system complexity, and enables precise alignment of the dark portion with the opponent vehicle through coordinated control of both light sources.
2Ease of manufacture
If the headlamp and infrared light lamp are installed in different locations, then each component can be optimized independently, but it becomes difficult to form an exact dark portion in accordance with the opponent vehicle location
Solution Approach 1:
By integrating both light sources and sharing the reflection unit, the system ensures that the visible light and infrared light follow the same optical path. This unified structure guarantees that the dark portion formed by blocking infrared light precisely matches the location where visible light would illuminate, ensuring accurate alignment with the opponent vehicle location while maintaining independent optimization capabilities through modular design.
Solution Approach 2:
The system uses a camera to detect the location of opponent vehicles and feeds this information back to the controller. The controller then adjusts the digital mirror device to block infrared light in the precise location corresponding to the detected opponent vehicle, ensuring accurate dark portion alignment. This feedback mechanism compensates for any variations in vehicle positions and maintains precision.
3Adaptability or versatility
If a digital mirror device with multiple micro-reflectors is used to dynamically adjust light paths, then the dark portion can be dynamically adjusted to match opponent vehicle location, but the device complexity increases
Solution Approach 1:
The digital mirror device receives control signals from the controller based on real-time feedback from the camera about opponent vehicle locations. The controller dynamically adjusts which micro-reflectors are activated to block infrared light in the precise locations corresponding to detected vehicles. This feedback-based dynamic adjustment achieves high adaptability while managing complexity through intelligent control algorithms.
Solution Approach 2:
The system transitions from static light blocking to dynamic adjustment. The digital mirror device can change the reflection paths of infrared light in real-time based on the positions of opponent vehicles. This dynamic capability allows the dark portion to be precisely positioned wherever needed, greatly enhancing adaptability to different driving scenarios and vehicle positions.
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 solution effectively prevents glare to opposing vehicle drivers by accurately matching the dark portion with the opponent vehicle's location, reducing overall system complexity and costs while improving light efficiency and safety.
Implementation Method 1
a reflection unit configured to receive the visible light irradiated from the first light source and the infrared light irradiated from the second light source and reflect the input or received visible light and infrared light to change moving paths
Data Source
AI summary
A vehicle lamp apparatus is provided that forms a dark portion on an opponent vehicle within a light-irradiated region of a headlamp to prevent glare. The irradiated regions of the headlamp and an infrared light lamp are matched to more accurately match a dark portion forming region with the opponent vehicle.