Automotive Vertical Headlamp Lens Stacking for Uniform Road Illumination

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Solution Overview

Problem

The installation of vertical headlamp modules on automotive vehicles often results in decreased lighting performance, including non-optimal uniformity and intensity, which is a challenge for manufacturers aiming for a distinct aesthetic appearance.

Innovation Solution

A headlamp module design with lenses having a height greater than the width, allowing for stacked lighting units that can generate different light patterns and maintain lighting performance, even when inclined, by adjusting focal points to ensure uniformity and intensity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If vertical headlamp modules are installed to achieve distinct aesthetic appearance, then visual appearance is improved, but lighting performance (uniformity and intensity) deteriorates

Engineering Contradiction:
Improvevertical aspect ratioVSAvoidlighting uniformity and intensity
Core Design Contradiction:
ShapeVSIllumination intensity

Solution Approach 1:

The headlamp module is divided into multiple independent lighting units (first lighting unit, second lighting unit, etc.) that can be independently configured. Each lighting unit contains its own light source and lens assembly, allowing different lighting functions to be implemented in different units without interfering with each other. This segmentation enables the system to maintain vertical aesthetic appearance while ensuring optimal lighting performance in each unit.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different lighting units are configured with different arrangements of light elements and optical characteristics tailored to their specific functions. For example, some units may be optimized for low beam with emphasis on uniformity, while others are optimized for high beam with emphasis on intensity. This local customization allows each unit to achieve optimal lighting performance while contributing to the overall vertical aesthetic design.

Inventive Principle:
Principle #3Local quality

2Shape

If lighting units are stacked vertically to maintain aesthetic appearance, then visual appearance is improved, but lighting function adaptability deteriorates

Engineering Contradiction:
Improvevertical stacking arrangementVSAvoidlighting function adaptability
Core Design Contradiction:
ShapeVSAdaptability or versatility

Solution Approach 1:

The vertical stacking arrangement is achieved through multiple independent lighting units, each capable of being independently configured for different lighting functions. This segmentation allows the system to provide diverse lighting functions (low beam, high beam, fog light, etc.) in different vertical units without compromising the aesthetic appearance or the adaptability of the lighting system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each lighting unit is designed with universal capability to perform multiple lighting functions depending on the configuration of light elements and optical components. The same vertical stacking structure can support different lighting patterns and functions in different units, making the system highly adaptable while maintaining the desired vertical aesthetic appearance.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 design achieves equivalent lighting performance to conventional units, enabling aesthetic customization while maintaining optimal lighting uniformity and intensity, and allows for personalized lighting effects through adaptable light elements.

Implementation Method 1

each lighting unit comprising at least one lens configured to generate light

Methodology Applied
Scientific EffectRefraction: Refraction

Implementation Method 2

the lens being disposed in the lighting unit in such a way that a height of the lens is greater than a width of the lens

Methodology Applied
Scientific EffectFocusing: Focusing

Data Source

PatentUS20250264198A1Vertical headlamp unit of an automotive vehicle
Publication Date: 2025.08.21 PO LIGHTING CZECH SRO
  • US20250264198A1 patent drawing
  • US20250264198A1 patent drawing

AI summary

The invention relates to an automotive vehicle headlamp module (2, 16) designated to illuminate a road, the headlamp module (2, 16) comprising lighting units (4′), each lighting unit (4′) comprising at least one lens (10, 26) configured to generate light, each lighting unit (4′) comprising a light exit area, the lens (10, 26) being disposed in the lighting unit (4′) in such a way that a height of the lens (10, 26) is greater than a width of the lens (10, 26).