Vehicle Lamp Light Guide Structure for Bright-Spot Position Alignment
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Solution Overview
Problem
In vehicle lamps with light guide bodies, positional deviation of bright spots occurs when light from different colored light sources is emitted, causing an uneven light distribution and an uneasy feeling when switching between light sources.
Innovation Solution
A vehicle lamp design featuring a light guide body with specific incidence and reflecting sections that guide light from adjacent light sources in the same direction, using a stepped configuration and inclined reflecting surfaces to ensure uniform emission from a single position, preventing positional deviation of bright spots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If light from different colored light sources is emitted from different positions of the light guide body, then the light sources can be arranged independently, but positional deviation of bright spots occurs causing uneven light distribution
Solution Approach 1:
The patent merges multiple light paths from different light sources into a single emission position on the light guide body. By designing the light guide body with multiple incidence sections that converge to a common emission section, light from different colored light sources is emitted from the same position, eliminating positional deviation of bright spots while maintaining independent light source arrangement.
2Adaptability or versatility
If light is guided from different positions toward the same direction, then multiple light sources can be used, but the light incident from different positions is emitted from different positions
Solution Approach 1:
The patent uses the thickness dimension of the light guide body to resolve the positional deviation issue. By arranging incidence sections at different positions on one surface and corresponding emission sections at different positions on the opposite surface, the patent creates parallel light paths that maintain spatial separation while achieving uniform emission characteristics. This dimensional approach allows multiple light sources to be used without compromising illumination uniformity.
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 allows for uniform emission of light from different colored light sources from a single position, eliminating positional deviation and enhancing the visual coherence of the light distribution.
Implementation Method 1
a light guide body configured to guide light from the first light source and the second light source in a same direction with each other
Data Source
AI summary
A second light source, a second incidence section and a second reflecting section in a vehicle lamp are disposed closer to a light guide section than a first light source, a first incidence section and a first reflecting section, a stepped section is provided between the first reflecting section and the second reflecting section, and the first reflecting section is disposed at above the stepped section and the second reflecting section is disposed at below the stepped section when seen from a side of the first incidence section and a side of the second incidence section.