Adaptive Headlamp Lens with Segmented Reflecting Surface
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Solution Overview
Problem
Conventional adaptive headlamp devices for motorcycles lack versatility in illuminating dark areas due to inclination, requiring multiple structures to effectively light up areas that main headlamps cannot reach.
Innovation Solution
An adaptive headlamp device with a light-emitting unit and a lens featuring a light-emergent surface, a recessed light-incident surface, and a unique light-reflecting surface with multiple surface portions and interconnecting sections, which refracts and reflects light rays to provide enhanced illumination patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional adaptive headlamp devices use multiple headlamp units with different inclinations, then dark areas can be illuminated, but the device complexity and variety of structures increase
Solution Approach 1:
The lens is divided into multiple functional surface portions (first, second, third, fourth surface portions) that respectively correspond to different inclination angles. Each surface portion redirects light rays to illuminate specific dark areas, achieving segmentation of illumination functions within a single integrated lens structure.
Solution Approach 2:
A single headlamp device with a multi-functional lens can illuminate multiple dark areas corresponding to different inclination angles. The lens simultaneously performs multiple illumination functions that would otherwise require separate headlamp units, making the device universal for various motorcycle inclinations.
2Manufacturing precision
If the light-incident surface is recessed to create light-incident space, then light ray control is improved, but the lens complexity increases
Solution Approach 1:
The light-incident surface is recessed within the lens body to create an internal light-incident space. This nested structure allows light rays to be precisely controlled and redirected through the multiple surface portions without requiring external complex mechanisms, achieving precise light control within a compact integrated form.
3Illumination intensity
If the light-reflecting surface has multiple unsmooth surface portions, then light distribution patterns are enhanced, but the manufacturing precision requirements increase
Solution Approach 1:
Different surface portions of the light-reflecting surface have different local qualities - each surface portion is designed with specific geometric characteristics tailored to its function. The unsmooth surfaces create specific light scattering patterns appropriate for each inclination angle, allowing optimized light distribution without requiring uniform high precision across the entire surface.
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 device effectively illuminates dark areas not covered by main headlamps, offering a combination of light distribution patterns that adapt to different inclinations, enhancing visibility and safety.
Implementation Method 1
When the light rays emitted by the light emitting unit encounter the light-reflecting surface, the light rays reflect off the light-reflecting surface and travel to the light-emergent surface
Implementation Method 2
Each of the first, second, third, and fourth surface portions is unsmooth
Data Source
AI summary
An adaptive headlamp device includes a light emitting unit capable of emitting light rays, and a lens located in front of the light emitting unit. The lens includes an light-emergent surface that is located at a front end thereof, a rear end that defines a light-incident opening, a light-incident surface that defines a light-incident space facing the light emitting unit and communicating with the light-incident opening, and a light-reflecting surface that surrounds the light-incident surface. The light-reflecting surface includes first and second surface portions respectively located at upper and lower sides of the light-incident surface, third and fourth surface portions respectively located at left and right sides of the light-incident surface, and a plurality of interconnecting surface portions. Each interconnecting surface portion interconnects two adjacent ones of the first, second, third, and fourth surface portions. Each of the first, second, third, and fourth surface portions is unsmooth.