Vehicle Light Emitting Module Integrating DRL and Headlamp Illumination

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Solution Overview

Problem

Existing vehicle headlamp designs face challenges in achieving uniform illumination due to differences in illumination areas for daytime running lights (DRL), low-beam, and high-beam lamps, making it difficult to apply a consistent design character across varying light irradiation areas.

Innovation Solution

A light emitting module for vehicles is designed with a first light source and a second light source, each with a light condenser and lens unit, allowing for the integration of different light directions and illumination areas, enabling the combination of DRL, low-beam, and high-beam functions in a single module with varied illumination patterns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the same design character is applied to DRL and headlamp, then design consistency is improved, but illumination area difference causes application difficulty

Engineering Contradiction:

Improvedesign consistencyVSAvoidapplication adaptability

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The headlamp is divided into separate functional modules: a DRL module with first light sources for daytime running light, and a headlamp module with second light sources for high-beam and low-beam illumination. Each module has its own light sources and optical components, allowing independent design optimization for each illumination area while maintaining overall design consistency through unified module architecture.

Inventive Principle:

Principle #1Segmentation

2Area of stationary object

If multiple light sources with different illumination areas are integrated, then illumination coverage is improved, but device complexity increases

Engineering Contradiction:

Improveillumination areaVSAvoidmodule complexity

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent integrates the DRL module and headlamp module into a single unified headlamp device. The first light sources and second light sources are arranged in a combined configuration sharing common structural elements and housing, allowing multiple illumination areas to be achieved while reducing overall device complexity compared to separate independent units.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The headlamp module serves multiple functions: it provides high-beam illumination, low-beam illumination, and can be integrated with the DRL module for daytime running light. The second light sources are configured to generate different beam patterns (high-beam and low-beam) from the same physical components, achieving multi-functionality without increasing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Illumination intensity

If light direction is changed through reflection or refraction, then illumination direction is improved, but optical path complexity increases

Engineering Contradiction:

Improvelight direction controlVSAvoidoptical path complexity

Core Design Contradiction:

Illumination intensityVSDevice complexity

Solution Approach 1:

Instead of using complex reflective optics to redirect light from forward-facing light sources, the patent inverts the approach by using backward-facing light sources (second light sources) that emit light directly in the forward direction. This eliminates the need for complex reflection paths while achieving the desired illumination direction control for high-beam and low-beam patterns.

Inventive Principle:

Principle #13The other way round (Inversion)

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 a uniform illumination effect by integrating different illumination areas, enhancing the design flexibility and consistency of vehicle headlamps, allowing for a wider illumination area and improved visibility.

Implementation Method 1

a light concentrator disposed forwards in an advance direction of light generated from the first light source, to change the advance direction of the light generated from the first light source through reflection or refraction

Methodology Applied

Scientific EffectReflection: Reflection

Implementation Method 2

Methodology Applied

Scientific EffectRefraction: Refraction

Implementation Method 3

a lens unit disposed forwards in an advance direction of the light generated from the second light source, to change the advance directions of the light generated from the first light source and the light generated from the second light source

Methodology Applied

Scientific EffectRefraction: Refraction

Implementation Method 4

The light condenser may be a lens for condensing the light generated from the first light source forwards in the advance direction of the light

Methodology Applied

Scientific EffectCondensation: Condensation

Data Source

PatentUS11391430B2Light emitting module for vehicle and lamp device including the same

Publication Date: 2022.07.19 HYUNDAI MOTOR CO LTD

AI summary

A light emitting module for a vehicle is disclosed. The light emitting module includes a first light source configured to generate a first light during an operation, a light concentrator disposed in a forward direction of the first light and configured to change the forward direction of the first light through reflection or refraction, a second light source spaced apart from the first light source and configured to generate a second light in a direction different from the first light, and a lens unit disposed in a forward direction of the second light, and configured to change the forward directions of the first light and the second light.