Two-Wheeled Vehicle Headlight With Integrated Light Guide
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Solution Overview
Problem
Current headlights for two-wheeled motor vehicles have bilaterally symmetric illumination patterns, which are good for visibility and conspicuousness but can be improved further.
Innovation Solution
A headlight design featuring a single housing with high beam and low beam headlamp light sources, reflectors, and a position lamp light source, where the high beam headlamp reflector and low beam headlamp reflectors are formed from flat and arc-shaped upper and lower reflectors, with through holes to direct light effectively, and light guide members to integrate and direct light forward, enhancing visibility and conspicuousness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light from the position lamp light source is made to shine forward from the light guide member surrounding the lateral end of the low beam headlamp reflector, then visibility is enhanced, but the structural complexity increases
Solution Approach 1:
The patent combines the position lamp light guide member with the low beam headlamp reflector structure. The light guide member is integrated into the reflector assembly, merging two functional elements (position lamp illumination and low beam reflection) into a single structural unit. This reduces the number of separate components while achieving dual functionality, thereby enhancing visibility without proportionally increasing structural complexity.
Solution Approach 2:
The light guide member serves multiple functions: it guides light from the position lamp light source forward to enhance visibility, and it is integrated with the low beam headlamp reflector structure. This multi-functional design allows a single component to perform both position lamp illumination and low beam reflection tasks, improving efficiency while managing structural complexity.
2Illumination intensity
If the high beam headlamp reflector and low beam headlamp reflectors are formed from flat and arc-shaped upper and lower reflectors, then light directionality is improved, but manufacturing complexity increases
Solution Approach 1:
The headlamp reflectors are divided into multiple segments: flat upper reflectors and arc-shaped lower reflectors for both high beam and low beam headlamps. This segmentation allows each segment to be optimized for its specific function (flat surfaces for broad illumination, arc-shaped surfaces for focused directionality) while simplifying the manufacturing of individual segments compared to creating complex monolithic reflector shapes.
Solution Approach 2:
Different portions of the reflector system have different geometric properties tailored to their specific functions. The flat upper reflectors provide broad light distribution, while the arc-shaped lower reflectors provide focused directional control. This local differentiation of geometric quality allows each region to optimize its light-handling performance for its specific purpose while maintaining manufacturing feasibility through standardized segment types.
3Illumination intensity
If the high beam headlamp reflector rear end face is arranged forwardly of the low beam headlamp reflector rear end face, then visibility is enhanced, but the housing length increases
Solution Approach 1:
The patent arranges the high beam and low beam reflectors at different positions in the forward-backward dimension, with the high beam reflector's rear end face positioned forwardly of the low beam reflector's rear end face. This dimensional arrangement allows the high beam reflector to protrude forward to enhance visibility and light projection, while the overall housing length is managed by the integrated design that accommodates both reflectors within a compact configuration.
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 design enhances visibility by integrating low beam and position lamp light, making the headlight more conspicuous to oncoming vehicles by directing light effectively and creating a compact, highly visible illumination pattern.
Implementation Method 1
a high beam headlamp reflector that reflects forward light from the high beam headlamp light source
Implementation Method 2
low beam headlamp reflectors that are disposed on left and right sides of the high beam headlamp reflector so as to reflect forward light from the low beam headlamp light source
Data Source
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AI summary
A headlight for a two-wheeled motor vehicle is provided in which disposed in a single housing are a high beam headlamp light source, low beam headlamp light sources that are disposed on the left and right of the high beam headlamp light source, a high beam headlamp reflector, low beam headlamp reflectors that are disposed on left and right sides of the high beam headlamp reflector and are formed integrally with the high beam headlamp reflector, and a position lamp light source, wherein a light guide member that guides light from the position lamp light source and makes the light shine forward is extendingly disposed so as to surround a lateral end, excluding a section adjacent to the high beam headlamp reflector, of the low beam headlamp reflector. This enables visibility and conspicuousness to be improved.