Motorcycle Light Guide Visibility Enhancement
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Solution Overview
Problem
Existing two-wheeled motor vehicle lighting devices do not effectively increase the visibility of the vehicle body beyond the lighting device itself, lacking a comprehensive approach to emphasize the vehicle's outline using light guide members.
Innovation Solution
A lighting device with a housing that includes a first light guide portion along the vehicle's width direction, a second light guide portion, and a third light guide portion connected by a light guide plate, where the first light guide portion is arranged along a convex ridge line, and the second and third light guide portions guide light from position lights and a winker device to enhance visibility by forming an integrated, elongated light pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light guide member is provided to increase visibility of the lighting device, then the visibility of the lighting device is improved, but the visibility of the vehicle body itself is not effectively increased
Solution Approach 1:
The light guide member is divided into multiple segments: a first light guide portion along the vehicle width direction, a second light guide portion, and a third light guide portion connected by a light guide plate. Each segment serves a specific function in illuminating different parts of the vehicle body, thereby expanding the overall visibility enhancement scope while maintaining effective illumination intensity in each region.
Solution Approach 2:
The light guide member is designed to perform multiple functions simultaneously: it illuminates the lighting device itself, emphasizes the vehicle body outline, and provides directional lighting. By integrating these multiple functions into a single light guide member structure, the system achieves both improved lighting device visibility and enhanced vehicle body visibility without requiring separate systems.
2Area of stationary object
If multiple light guide portions are arranged to cover different areas, then the visibility coverage is improved, but the device complexity increases
Solution Approach 1:
Multiple light guide portions (first, second, and third light guide portions) are merged into a single integrated light guide member structure. The light guide plate connects these portions, forming one cohesive component that can be manufactured and installed as a single unit. This merging approach expands the visibility coverage area while avoiding the complexity of multiple separate light guide components.
Solution Approach 2:
The light guide member extends in multiple spatial dimensions: the first light guide portion extends along the vehicle width direction, while the second and third portions extend in other directions. This multi-dimensional arrangement allows comprehensive coverage of different vehicle body areas without requiring proportionally increased structural complexity, as the same component serves multiple spatial functions.
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 solution significantly increases the visibility of both the lighting device and the vehicle body by creating an integrated light pattern that emphasizes the vehicle's outline, improving design aesthetics and visibility through the use of elongated light guides and strategically placed light sources.
Implementation Method 1
a light guide member formed so as to surround part of an outer peripheral side of a reflector for a headlight bulb, allowing the light guide member to emit light by a light source provided independently from the headlight bulb
Data Source
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AI summary
In a two-wheeled motor vehicle including a lighting device 30 having a housing 31 supported by a front portion of a vehicle body of a two-wheeled motor vehicle 1, a first light guide portion 81 guiding irradiation light of a first light source 91 in a long shape, which is provided in the housing 31, and an outer lens 40 fixed to the housing 31 so as to cover the first light guide portion 81, a front-side cover 7 covering part of the outer lens 40 is provided. The first light guide portion 81 is arranged along a first ridge line 51 having an angle section formed between a front-side cover 7 and a first lens surface 41 of the outer lens 40. A third light guide portion 83a extending toward the first light guide portion 81 is allowed to emit light by a second light source 92 arranged adjacent to the first light source 91. The arrangement provides a two-wheeled motor vehicle capable of increasing the visibility of a vehicle body by a light guide member provided in a lighting device.