Motorcycle Tail Light Lens with Segmented Transmission Zones
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Solution Overview
Problem
Existing vehicle light apparatuses with a reflecting area in the center of the outer lens reduce light radiation and make the reflecting area conspicuous when the light is on, impairing the external appearance.
Innovation Solution
A vehicle light apparatus with a reflecting area of lower light transmission rate opposite to the lamp bulb and light transmission areas of higher transmission rate within the reflecting area, allowing the lamp bulb to be hidden while maintaining light radiation and minimizing the visibility of the reflecting area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a reflecting area is provided in the center of the outer lens to hide the lamp bulb, then the external appearance is improved, but the amount of light radiated to the outside is reduced
Solution Approach 1:
The outer lens is divided into different regions with different light transmission properties: a reflecting area with lower light transmission rate to hide the lamp bulb, and light transmission areas with higher light transmission rate to allow light radiation. This local differentiation resolves the contradiction by assigning different functions to different parts of the same component.
Solution Approach 2:
The reflecting area is segmented into multiple light transmission areas that allow light to pass through. This segmentation enables the reflecting area to simultaneously hide the lamp bulb (by reflecting light in certain directions) and allow sufficient light radiation (by transmitting light through the segmented areas).
2Shape
If a reflecting area is provided in the center of the outer lens to hide the lamp bulb, then the lamp bulb becomes invisible from the outside, but the reflecting area becomes conspicuous when the light is on
Solution Approach 1:
The reflecting area incorporates light transmission areas with higher light transmission rate, creating local quality differences that allow the reflecting area to blend with the surrounding lens when light is on. This prevents the reflecting area from being conspicuous while maintaining its bulb-hiding function.
Solution Approach 2:
The light transmission areas within the reflecting area allow light to pass through, creating a visual effect that matches the surrounding illuminated areas. This color/transparency coordination makes the reflecting area less conspicuous when the light is on, while still maintaining the bulb-hiding function when the light is off.
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
Prevents reduction in light radiation and makes the reflecting area less conspicuous, improving the external appearance by ensuring the lamp bulb is invisible and light is radiated effectively.
Implementation Method 1
an inner lens for reflecting the light from the lamp bulb toward a lens opening
Implementation Method 2
a reflecting area having lower light transmission rate than the outer lens is provided in the part opposite to the lamp bulb
Data Source
AI summary
A vehicle light apparatus has a lamp bulb that is not visible from the outside and a reflecting area that is not conspicuous when the light is on. An inner lens reflects light, from the lamp bulb toward a lens opening and an outer lens attached to the lens opening covers the lamp bulb. A reflecting area having a lower light transmission rate than the outer lens is provided on the tail lens where it opposes the lamp bulb. Light transmission areas having a higher light transmission rate than the reflecting area are provided on the reflecting area.