Vehicle Lamp Shield Dynamics for Adaptive Beam Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current vehicle lamps lack the ability to dynamically adjust beam patterns to optimize lighting for various driving conditions, such as low-beam and high-beam settings, which can lead to inadequate illumination and glare issues.
Innovation Solution
A vehicle lamp system featuring a light source unit, a shield portion with controllable light transmittance pixels, and a processor that adjusts the position and light transmittance of shields to form optimized beam patterns, including low-beam and high-beam patterns, by controlling the rotation and light transmission of multiple reflectors and shields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed beam pattern is used in vehicle lamps, then the structure is simple and reliable, but the lighting cannot be optimized for various driving conditions leading to inadequate illumination and glare issues
Solution Approach 1:
The patent implements dynamic beam pattern adjustment by making the shield portion rotatable and enabling variable light transmittance control. The shield can rotate to different positions and adjust its light transmittance dynamically based on driving conditions, allowing the same hardware to produce different beam patterns (low-beam, high-beam, etc.) without requiring multiple fixed lamp assemblies.
Solution Approach 2:
The shield portion serves multiple functions: it acts as a beam pattern formatter, a rotatable positioning element, and a variable light transmittance controller. By integrating these functions into a single component, the patent achieves multi-functionality that resolves the contradiction between adaptability and complexity.
2Adaptability or versatility
If multiple fixed shields are used to create different beam patterns, then various lighting conditions can be achieved, but the device complexity and number of components increase
Solution Approach 1:
Instead of using multiple fixed shields, the patent employs a single rotatable shield that can dynamically change its position and light transmittance. This dynamic approach allows one component to perform the function of multiple fixed components, reducing overall device complexity while maintaining beam pattern variety.
Solution Approach 2:
The patent changes the parameters of the shield (position angle and light transmittance) to create different beam patterns. By varying these parameters dynamically, the system achieves multiple beam patterns without requiring multiple physical shields, thus resolving the contradiction between beam pattern variety and component数量.
3Illumination intensity
If high light transmittance is used for better illumination, then visibility is improved, but glare to other vehicles and pedestrians increases
Solution Approach 1:
The patent dynamically adjusts the light transmittance parameter of the shield based on driving conditions. When high illumination is needed, the shield transmittance is increased; when glare prevention is needed, the transmittance is reduced. This dynamic parameter adjustment resolves the contradiction between illumination intensity and glare prevention.
Solution Approach 2:
The shield can apply different light transmittance values to different regions or at different times based on the required beam pattern. This local quality control allows the system to optimize illumination in needed areas while preventing glare in other areas, resolving the contradiction between illumination and glare.
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
Enables adaptive illumination that enhances visibility and reduces glare by dynamically adjusting beam patterns based on driving conditions, providing optimized low-beam and high-beam outputs.
Implementation Method 1
configured to receive the light generated by the light source and to transmit at least a portion of the received light to form a beam pattern
Implementation Method 2
a reflector configured to reflect the first light and the second light toward the front of the vehicle lamp
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A vehicle lamp includes: a light source unit (810) including at least one light source (822) configured to generate light; a shield portion located closer to a front of the vehicle lamp as compared to the light source unit, and configured to receive the light generated by the light source (822) and to transmit at least a portion of the received light to form a beam pattern, the shield portion including: a first shield (845) configured to form at least part of the beam pattern; and a second shield (840) having a light transmittance that is configured to be controlled to modify the beam pattern; a drive unit (847) configured to drive the shield portion; and at least one processor (870) configured to control at least one of the shield portion or the drive unit (847) to modify the beam pattern.