Vehicle Lighting Assembly Reflector System Light Distribution
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Solution Overview
Problem
Vehicles' lighting assemblies, particularly those using LEDs, often suffer from hot spots and dark spots due to uneven light distribution, and existing designs make it difficult to service or replace the light sources without accessing the chamber.
Innovation Solution
A vehicle lighting assembly with a housing comprising two sections that form a chamber, where a light source outside the chamber is directed by a reflector system, including a collimator and a light emitter with grooves, and a metallized chamber lined with high reflectivity layers, allowing for even light distribution and easy source replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the light source is placed inside the chamber, then the light distribution can be directly controlled, but the light source becomes difficult to service or replace
Solution Approach 1:
The housing is divided into a first section and a second section that can be separated from each other. The light source is located in the first section while the light emitter is in the second section. This segmentation allows the light source to be accessed and replaced by simply separating the housing sections, without requiring access to the chamber where the light emitter is located.
2Illumination intensity
If a reflector system is used to direct light from the light source to the light emitter, then light distribution uniformity is improved, but the system complexity increases
Solution Approach 1:
The reflector system includes a first reflector and a second reflector with different configurations optimized for their specific functions. The first reflector is positioned to direct light from the light source toward the light emitter, while the second reflector is positioned to further direct light from the light emitter toward the exterior. Each reflector has specific geometric properties tailored to its location and function, creating uniform light distribution through localized optimization rather than a single complex component.
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 provides a lighting assembly with improved even light distribution and allows for easy replacement of light sources, reducing light loss and enhancing the appearance of the lighting system.
Implementation Method 1
A reflector system directs light emitted from the light source to the light emitter within the chamber
Implementation Method 2
The chamber can be lined with a metallized layer that can reflect light
Data Source
AI summary
A light guide system for a vehicle includes, among other things, a housing that includes a first section and a second section that are secured together to provide a chamber A light emitter is disposed within the chamber. A light source is disposed outside the chamber A reflector system directs light emitted from the light source to the light emitter within the chamber. A vehicle lighting method includes, among other things, securing a first and second section of a housing assembly together to provide a chamber, and operatively coupling a reflector system within the chamber and a light source outside the chamber such that the reflector system can redirect light from the light source to a light emitter held within the chamber.