Headlamp Light Source Groups for Color Control
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Solution Overview
Problem
Conventional headlamps lack flexibility in color adjustment and standardization, particularly in achieving reproducible light output with narrow tolerance requirements, which complicates serial production and usage across different functions.
Innovation Solution
A lamp design featuring at least two controllable light source groups, one emitting yellow light and the other emitting white or blue light, allowing for collective emission and adjustable color points, enabling easy serial use across various functions like driving direction indicators, daytime running lights, and position lights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional headlamps use standardization with single-color light sources, then manufacturing and installation are simplified, but flexibility in color adjustment and adaptability to different functions is reduced
Solution Approach 1:
The light source group is segmented into multiple individual light sources (e.g., yellow, white, and blue LEDs) that can be independently controlled. This segmentation allows flexible color adjustment by activating different combinations of light sources while maintaining a standardized physical structure that simplifies manufacturing and installation.
Solution Approach 2:
The lamp is designed with multi-functional capability by incorporating multiple light source types (yellow, white, blue) within a single standardized housing. This universal design allows the same lamp structure to serve multiple functions and color requirements without changing the basic device configuration, thereby improving adaptability without proportionally increasing complexity.
2Manufacturing precision
If conventional headlamps use single-color light sources, then light output consistency is easier to achieve, but the ability to produce reproducible light output with narrow tolerance requirements across multiple colors is compromised
Solution Approach 1:
The invention controls the emission characteristics by changing operational parameters - specifically, by independently controlling the intensity and activation of different light source types (yellow, white, blue LEDs). This parameter control allows reproducible light output with narrow tolerances for each color while maintaining the capability to emit multiple colors, resolving the contradiction between precision and versatility.
3Adaptability or versatility
If conventional headlamps use standardized single-function designs, then production costs and complexity are reduced, but adaptability to various lighting functions (fog light, daytime running light, turn signal) is limited
Solution Approach 1:
The lamp incorporates dynamic control capability where different combinations of light sources can be activated based on the required function. The system can dynamically switch between various lighting modes (fog light, daytime running light, turn signal, position light) by controlling which light sources emit, allowing a single standardized device to adapt to multiple functions without increasing physical complexity.
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
This design allows for precise control of light color, simplifies production, and ensures reproducible light output, enhancing the lamp's adaptability and reliability across different applications while reducing complexity and costs.
Implementation Method 1
The lamp (1) has at least two light source groups (22, 24) each having at least one controllable light source (10)
Data Source
AI summary
A lamp for a headlamp is provided. The lamp includes at least two light source groups each including at least one controllable light source. The light sources of one light source group are set up for emitting yellow light. The light sources of another light source group are set up for emitting at least one of white or blue light. At least the light sources of the at least two light source groups are arranged for producing light that is collectively emittable.