Motorcycle Lighting Device Side Lens Segmentation
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Solution Overview
Problem
Conventional motorcycle lighting equipment faces challenges in increasing light supply to the side lens while maintaining light in the forward direction and preserving design freedom of the motorcycle's outer shape, as existing solutions either reduce light in the forward direction or compromise the outer shape.
Innovation Solution
The lighting equipment includes a side lens positioned closer to the light source than the lens cover, which allows increased light supply to the side lens without enlarging the cutout area, and features a partitioning portion between the front and side lenses to enhance visual recognition, along with a curved lens cover to reduce air resistance and a groove to efficiently direct light, all while maintaining the motorcycle's design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the bulb is made closer to the lens main body to increase direct light to the side lens, then the amount of light introduced into the side lens is improved, but the distance between the bulb and lens main body is decreased, reducing the reflector's reflection surface area
Solution Approach 1:
The lighting system is segmented into distinct functional zones: the side lens is positioned in the forward region closer to the bulb to receive direct light, while the reflector maintains its rearward position to preserve reflection surface area. This segmentation allows both requirements to be satisfied simultaneously without compromise.
Solution Approach 2:
The side lens acts as an intermediary element positioned between the bulb and the lens cover. By placing the side lens closer to the bulb, it intercepts direct light effectively without forcing the entire lens main body forward, thus preserving the reflector's reflection surface area while still achieving adequate illumination of the side lens.
2Illumination intensity
If the lens main body is repositioned forward to accommodate a lens-cut portion without a cutout, then light supply to the side lens is improved, but the shape of the lens main body must be changed, reducing design freedom of the motorcycle outer shape
Solution Approach 1:
The patent extracts the side lens from the conventional lateral position and repositions it forward closer to the bulb. This extraction allows the side lens to be illuminated effectively without requiring modifications to the lens main body shape or the removal of cutouts, thereby preserving both illumination performance and design freedom for the motorcycle outer shape.
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 light supply to the side lens, improves visual recognition, and maintains light in the forward direction, while allowing for flexible design of the motorcycle's outer shape without relying on the shape of the bulb or side lens, thus enhancing both functionality and aesthetics.
Implementation Method 1
light is refracted by the lens-cut portion of the lens extension in a direction generally perpendicular to an outer surface of the lens main body, thereby creating a contrast of light
Implementation Method 2
the amount of light which is reflected by the reflector
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
A motorcycle 10 includes lighting equipment 50. The lighting equipment 50 includes bulbs 52, 54 having light emitting portions 52b, 54b. Front lenses 58, 60 are provided ahead of the bulbs 52, 54. A side lens 62 is provided laterally of the bulb 52. The bulbs 52, 54 are held by reflectors 68, 70. The reflector 68 has a cutout 68d for supplying part of light from the light emitting portion 52b to the side lens 62. The front lenses 58, 60 and the side lens 62 are covered by a lens cover 66 which constitutes part of an outer shape of the motorcycle 10. A lens frame 64 is disposed inside the lens cover 66. The lens frame 64 is attached to the front lenses 58, 60 and to the side lens 62. The lens frame 64 has a partitioning portion 64d which is provided like a connection between the front lens 58 and the side lens 62.