Light-transmitting element with hidden fixing structure
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Solution Overview
Problem
In motor vehicle lighting devices, the fixing structure of light-transmitting elements like light guides is visible from outside, affecting the aesthetic appearance and causing abnormal light spots that disrupt the style design.
Innovation Solution
A light-transmitting element with an L-shaped connection portion between the main body and fixing portion, where the connection portion's dimension in the light-exiting direction is smaller than the fixing portion's, preventing light from propagating and making the fixing structure invisible from outside, and the L-shaped connection portion is designed to direct light away from the exit surface, minimizing reflections into the fixing portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixing structure is provided to fix the light-transmitting element in the lighting device, then the light-transmitting element can be securely fixed, but the fixing structure becomes observable from outside, adversely affecting aesthetic appearance
Solution Approach 1:
The patent introduces a connection portion as an intermediary element between the main body and fixing portion. This connection portion acts as a light-blocking mediator that prevents light from reaching the fixing structure, thereby hiding it from external observation while maintaining the fixing function
Solution Approach 2:
The patent extends the connection portion in the depth direction (away from light-exiting surface) to create a three-dimensional light-blocking structure. By adding this depth dimension, the fixing structure is positioned outside the light path, making it invisible from the front while preserving its fixing function
2Shape
If the light-transmitting element is made transparent to maintain aesthetic appearance, then the style design is improved, but abnormal light spots become observable from the light exit side, severely destroying style design
Solution Approach 1:
The connection portion serves as an intermediary light-blocking element that intercepts light before it can reach the fixing structure and create abnormal light spots. This mediator prevents the harmful light reflection while maintaining the transparency of the main light-transmitting body
Solution Approach 2:
The patent extracts the light-blocking function from the main transparent body by creating a separate connection portion with different optical properties. This allows the main body to remain transparent for aesthetic purposes while the extracted connection portion handles the light-blocking function to prevent abnormal light spots
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 effectively hides the fixing structure from view, preventing light spots and enhancing the aesthetic and stability of the lighting device's design by ensuring that the light-transmitting element's fixing structure is not observable, thus maintaining a better appearance and style integrity.
Implementation Method 1
It allows the light to be internally transmitted in the light guide by a total reflection of light
Data Source
AI summary
A light-transmitting element including a main body and a fixing portion. A connection portion is provided between the main body and the fixing portion, so that the main body is spaced apart from the fixing portion by the connection portion. The present utility model also provides a lighting device including the light-transmitting element. According to the light-transmitting element and the lighting device of the present utility model, it can avoid a fixing structure for fixing the light-transmitting element from being observed from outside.