Position Light-Integrated Blinker Apparatus for Saddle Riding Vehicles
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Solution Overview
Problem
The existing position light-integrated blinker apparatus for saddle riding vehicles has limited visibility when using LED light sources due to their high directivity, requiring enhancement to create a larger light-emitting area.
Innovation Solution
The apparatus incorporates a light guide member with an annular shape to surround the blinker light-emitting region, featuring position-light light sources disposed on both ends of a diameter, with a shared substrate and outer lens to form distinct and clear light-emitting regions, enhancing visibility and reducing part count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED light sources are used for position light, then energy consumption is reduced and lifespan is extended, but visibility is deteriorated due to high directivity and small light-emitting area
Solution Approach 1:
A light guide member is introduced as an intermediary between the LED light source and the external environment. This light guide member diffuses the highly directional LED light into a broader emission pattern, maintaining the energy efficiency of LEDs while achieving sufficient visibility for position lighting.
Solution Approach 2:
The light guide member extends the light emission in spatial dimensions by guiding light along its structure and emitting it from multiple surfaces. This transforms the point-source emission of LEDs into a distributed line or surface emission, effectively increasing the visible light-emitting area without compromising energy consumption.
2Duration of action of stationary object
If LED light sources are used for position light, then operational durability is improved, but light-emitting area is reduced due to high directivity
Solution Approach 1:
The light guide member serves as a mediator that decouples the small emission area of the LED from the required visible light-emitting area. By guiding and redistributing the light along its structure, it creates an extended effective light-emitting area while preserving the LED's lifespan advantages.
Solution Approach 2:
The light guide member transforms the zero-dimensional point source emission of the LED into a one-dimensional or two-dimensional light distribution along its structure. This dimensional transformation effectively increases the apparent light-emitting area without requiring a larger physical light source, thereby maintaining the compact design and LED lifespan.
3Device complexity
If position light and blinker light are integrated in a compact design, then device complexity is reduced, but visibility of position light is deteriorated
Solution Approach 1:
The integrated light assembly is segmented into distinct functional zones: a central blinker light region and surrounding position light regions. The light guide member is specifically designed to direct light from position light sources along its circumferential structure, creating separate visible emission areas that prevent mutual interference and maintain both visibility and integration.
Solution Approach 2:
Different regions of the light guide member are optimized for different functions: the central region handles blinker light emission while the circumferential regions handle position light emission. This local differentiation of optical properties and light guidance paths allows the integrated design to maintain both low complexity and high visibility for each light function.
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 configuration increases the visibility of the position light-emitting region by forming an annular ring shape, effectively utilizing a small area for light sources and improving wire routing, while maintaining a clear distinction between position and blinker light-emitting regions.
Implementation Method 1
a light guide member (70) facing the position-light light sources (91, 92) and having an annular shape in a front view, wherein the light guide member (70) is irradiated with light from the position-light light sources (91, 92) to thereby form the position light light-emitting region (87)
Implementation Method 2
the circumferential bottom portion (73) is configured so as to reflect the incident light toward an anterior side in the vehicle, and the substantially torus-shaped portion (71) is configured so as to emit the reflected light toward the anterior side in the vehicle of the light guide member (70)
Data Source
AI summary
A position light-integrated blinker apparatus for a saddle riding vehicle with improved visibility a blinker-light light source; position-light light sources; and a housing which houses both the blinker-light light source and the position-light light sources. A position light light-emitting region formed by illumination of the position-light light sources surrounds a blinker light light-emitting region formed by illumination of the blinker-light light source.