LED Light Module Diffusion Disk Aperture Design
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Solution Overview
Problem
LED light modules for vehicles are rarely active, making them unsuitable for night design integration and unable to operate in a dimmed state without exceeding stray light limits, as they are designed for high maximum illuminance and have limited light output reduction possibilities.
Innovation Solution
Incorporating a diffusion disk between the LED light source and lens with apertures to allow direct light passage, enabling the light module to be integrated into headlamp design even when not activated, and using a secondary light source to achieve homogeneous illumination without affecting the main lighting function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the LED light module is designed to provide high maximum illuminance for lighting functions, then the lighting performance is improved, but the light module appears dark and unattractive when not activated, preventing integration into night design
Solution Approach 1:
The LED light module is divided into two functional segments: a primary LED light source for high-intensity lighting functions and a secondary LED light source for aesthetic illumination. This segmentation allows each segment to serve its specific purpose independently, resolving the contradiction between lighting performance and aesthetic integration.
Solution Approach 2:
The light module is designed to perform multiple functions: the primary LED provides high-intensity illumination for driving functions (high beam, object illumination), while the secondary LED provides aesthetic illumination for night design. This multi-functionality allows the same physical structure to satisfy both lighting performance requirements and aesthetic integration requirements.
2Ease of manufacture
If the LED light output is reduced to enable dimmed operation, then aesthetic integration is improved, but the lighting function cannot be activated and lighting performance deteriorates
Solution Approach 1:
The illumination function is segmented into two independent light sources: the primary LED for lighting functions and the secondary LED for aesthetic illumination. This segmentation allows the secondary LED to be dimmed or operated independently without affecting the primary LED's full-power lighting capability, thus maintaining lighting function availability while enabling aesthetic integration.
Solution Approach 2:
The system dynamically switches between different operational modes: the primary LED operates at full power when lighting functions are required, while the secondary LED operates continuously at lower intensity for aesthetic purposes. This dynamic operation allows the system to adapt to different functional requirements without compromising reliability.
3Ease of manufacture
If the primary LED light source is used for aesthetic illumination, then aesthetic integration is improved, but the lighting function cannot be activated and lighting performance deteriorates
Solution Approach 1:
The illumination system is segmented into two independent LED light sources with distinct functions: the primary LED dedicated to high-intensity lighting functions and the secondary LED dedicated to aesthetic illumination. This segmentation eliminates the conflict by providing separate hardware resources for each function, allowing both aesthetic integration and lighting performance to be optimized independently.
Solution Approach 2:
Different regions of the light module are assigned different qualities: the primary LED is positioned and configured to provide directed, high-intensity illumination for specific lighting functions, while the secondary LED is configured to provide diffuse, aesthetic illumination. This local differentiation of quality allows each region to excel at its specific function without compromising the other.
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 the light module to be visually perceptible at night and maintain the main lighting function's effectiveness while preventing unwanted stray light, enabling integration into vehicle headlamps and providing a more attractive appearance.
Implementation Method 1
a diffusion disk is disposed between the LED light source and the lens of the diffusion disk as viewed in the light exit direction
Data Source
AI summary
The invention relates to an LED light module for a motor vehicle, or for a headlight for a motor vehicle, wherein the light module comprises a lens and an LED light source, wherein according to the invention a diffusion disk is disposed between the LED light source and the lens as viewed in the light exit direction, wherein the diffusion disk has at least one aperture for the direct passage of at least one component of the light emitted by the LED light source, and wherein the direct component of the light emitted by the LED light source, which component emerges through the aperture of the diffusion disk, is projected through the lens so as to generate a lighting function in the region in front of the motor vehicle.