Vehicle LED Linear Lighting Module Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle LED lighting systems face challenges in achieving uniform brightness and meeting daytime running light regulations due to the directivity of point light sources, leading to poor visual quality and increased costs from the need for more LEDs or higher power usage.
Innovation Solution
A vehicle LED linear lighting module with a flexible design that converts point light sources into linear light sources, utilizing a printed circuit board, optical colloid, and light conductor to enhance light uniformity and intensity, allowing for free-curve applications and reduced module thickness, while integrating dynamic lighting effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If point light sources (LEDs) are directly applied to daytime running lights, then high brightness and long service life are achieved, but the lamp body becomes thicker and obvious granularity appears in the visual direction
Solution Approach 1:
The patent introduces a light guide body as an intermediary component between the LED point light sources and the external environment. This light guide body transforms the point light sources into a linear light source, eliminating the need for thick lamp bodies and removing visible granularity while maintaining high brightness and long service life of LEDs.
Solution Approach 2:
The patent changes the light distribution parameters by using a light guide body with specific optical properties. The light guide body transforms the directional point light from LEDs into a linear light source with uniform luminance distribution, achieving thin lamp body design without visible granularity while maintaining illumination intensity.
2Ease of manufacture
If the LED placement position on the LED strip deviates from the center position of the light guide body, then manufacturing flexibility is improved, but light output efficiency decreases and central light intensity becomes too low
Solution Approach 1:
The patent applies local quality by creating a symmetric light guide body structure with specific optical properties at the center region. This localized symmetric design ensures that even when LEDs are placed at different positions, the central region of the light guide body efficiently collects and redirects light, maintaining high light output efficiency and central light intensity while allowing manufacturing flexibility.
3Adaptability or versatility
If soft materials with phosphor powder and pigment materials are added to create flexible lighting, then adaptability to free-curve shapes is improved, but overall light intensity decreases
Solution Approach 1:
The patent uses a light guide body that copies and redistributes the light from LED point sources along its length. This optical copying mechanism allows the light to be distributed uniformly along the linear light source while maintaining high overall light intensity, enabling flexible free-curve applications without the light intensity loss associated with phosphor and pigment materials.
4Ease of manufacture
If a flat silica gel illuminating surface is used, then manufacturing simplicity is improved, but light divergence increases and central light intensity cannot meet regulations
Solution Approach 1:
The patent replaces the flat silica gel illuminating surface with a light guide body featuring a curved optical surface. This curved surface design focuses and redirects light more effectively, reducing light divergence and significantly increasing central light intensity to meet regulatory requirements while maintaining ease of manufacture through molded construction.
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 high brightness and uniformity, meeting regulatory requirements with reduced module size and cost, enhancing visual appeal and safety through improved light distribution and increased light collection efficiency.
Implementation Method 1
utilizing a printed circuit board, optical colloid, and light conductor to enhance light uniformity and intensity
Data Source
Figure 1A
Figure 1B~1C
Figure 1D
AI summary
A vehicle LED linear lighting module is provide, including at least one printed circuit board (10), at least one light bar (20), an optical collimator (30) and a light guide (40). The light bar (20) is disposed on the printed circuit board (10) and composed of a plurality of light emitting diodes (22) in a linear lighting and arranged with equal pitches. The optical collimator (30) has a first optical surface (31), a second optical surface (32) and a third optical surface (33), and covers the plurality of light emitting diodes (22) in a full coverage. By using different optical surfaces of the optical collimator (30) and the arrangement of the light incident surface (41) and the light exit surface (42) of the light guide (40), the light strip (20) can greatly improve the light effect.