Modular Headlight Cut-Off Shield for Compact Beam Control
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Solution Overview
Problem
Headlight assemblies face challenges in meeting regulatory requirements for cut-off patterns while ensuring minimal disruption to other vehicles, including stylish arrangements and light output, the present disclosure provides a lighting module for a projector light source, a projector, and a shield assembly, which includes a projector light source, a second light source, a lens, and a housing, with a shield assembly that blocks light and defines a cut-off pattern, addressing the need for smaller, stylish, and regulatory-compliant headlight designs.
Innovation Solution
The lighting module includes a projector light source, a second light source, a lens, and a housing with a shield assembly that blocks light and defines a cut-off pattern, using a light blocker and a cut-off portion to create specific illumination patterns, allowing for smaller, stylish, and regulatory-compliant headlight designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shield assembly with light blocker and cut-off portion is added to define cut-off pattern, then regulatory compliance for headlight illumination is improved, but device complexity increases
Solution Approach 1:
The shield assembly merges the light blocker and cut-off portion into a single integrated component that performs multiple functions: blocking light from the projector light source, defining the cut-off pattern for the second light source, and maintaining structural compactness. This integration resolves the contradiction by achieving regulatory compliance without proportionally increasing complexity.
Solution Approach 2:
The shield assembly serves multiple functions simultaneously: it acts as a light blocker for the projector light source, creates the cut-off pattern for the second light source, and provides structural support within the housing. This multi-functionality allows the system to meet regulatory requirements while minimizing the addition of separate components.
2Shape
If smaller lighting modules are used to meet stylish arrangements and regulatory requirements, then aesthetic appearance and compliance are improved, but light output and illumination quality may deteriorate
Solution Approach 1:
The lighting module utilizes three-dimensional spatial arrangement of the light sources and shield assembly to achieve the required cut-off pattern and illumination quality within a compact footprint. By strategically positioning the projector light source and second light source in different spatial zones and using the shield assembly to block light in specific directions, the system maintains stylish compact dimensions while preserving adequate light output.
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 enables headlight assemblies to meet various regulatory standards while minimizing disruption to other drivers, providing efficient and stylish illumination patterns.
Implementation Method 1
a light blocker configured to block light from the projector light source from reaching the second lens portion and to block light from the second light source from reaching the first lens portion
Implementation Method 2
a cut-off portion configured to interrupt a portion of light emitted from the second light source and to define a cut-off pattern
Implementation Method 3
a lens defining a first lens portion associated with the projector light source and a second lens portion associated with the second light source
Data Source
AI summary
A lighting module for a headlight in a vehicle includes: a projector light source; a second light source associated with a low-beam function; a lens defining a first lens portion and a second lens portion each associated with a corresponding one of the light sources; a housing holding the light sources and holding the lens at a fixed position relative to the light sources and spaced apart therefrom; and a shield assembly disposed in an interior of the housing between the light sources and the lens. The shield assembly includes a light blocker configured to block light from the projector light source from reaching the second lens portion and to block light from the second light source from reaching the first lens portion. The shield assembly also includes a cut-off portion configured to interrupt a portion of light emitted from the second light source and to define a cut-off pattern.