Vehicle Grille Lighting with Layered 3D Optical Patterns

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Solution Overview

Problem

Existing grille lighting systems for electric vehicles face limitations in expressing brand identity, leading to increased development and production costs and weight gain due to multiple illuminating devices, while lacking effective three-dimensional visual effects.

Innovation Solution

A lighting device comprising a housing, a lens, a light source, a first pattern layer with three-dimensional patterns, and a second pattern layer with two-dimensional patterns, which combine to create a three-dimensional optical illusion and provide both illuminated and non-illuminated images.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If multiple illuminating devices are used to achieve grille lighting, then the visual effect and brand identity expression are improved, but the weight and production costs increase

Engineering Contradiction:
Improvevisual effectVSAvoidweight
Core Design Contradiction:
Illumination intensityVSWeight of moving object

Solution Approach 1:

The patent combines multiple lighting functions into a single illuminating device by integrating a light source with multiple lens assemblies having different refraction rates. This merging approach eliminates the need for separate illuminating devices while achieving diverse lighting patterns and visual effects, thereby reducing weight and production costs.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single illuminating device is designed to perform multiple lighting functions simultaneously by using lens assemblies with different refraction rates. The system can generate various lighting patterns (e.g., daytime running lights, turn signals, grille lighting) through one device, making it universal and eliminating the need for multiple specialized illuminating devices.

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

2Illumination intensity

If multiple illuminating devices are used to achieve grille lighting, then the visual effect and brand identity expression are improved, but the production costs increase

Engineering Contradiction:
Improvevisual effectVSAvoidproduction costs
Core Design Contradiction:
Illumination intensityVSEase of manufacture

Solution Approach 1:

The patent combines multiple lighting functions into a single illuminating device by integrating a light source with multiple lens assemblies having different refraction rates. This merging approach eliminates the need for separate illuminating devices while achieving diverse lighting patterns and visual effects, thereby reducing weight and production costs.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single illuminating device is designed to perform multiple lighting functions simultaneously by using lens assemblies with different refraction rates. The system can generate various lighting patterns (e.g., daytime running lights, turn signals, grille lighting) through one device, making it universal and eliminating the need for multiple specialized illuminating devices.

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

3Device complexity

If conventional lighting devices are used, then the structure is simple, but the three-dimensional visual effect and brand identity expression are insufficient

Engineering Contradiction:
ImprovestructureVSAvoidthree-dimensional visual effect
Core Design Contradiction:
Device complexityVSIllumination intensity

Solution Approach 1:

The patent applies local quality by using lens assemblies with different refraction rates in different regions of the lighting device. Each lens assembly is positioned to create specific lighting patterns in different areas, enabling three-dimensional visual effects and enhanced brand identity expression while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent changes the refraction rate parameter of the lens assemblies to achieve different lighting effects. By selecting lenses with varying refraction rates and positioning them appropriately, the system creates three-dimensional visual effects and diverse lighting patterns without significantly increasing structural complexity.

Inventive Principle:
Principle #35Parameter changes

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 device enhances brand identity through a three-dimensional image and offers distinctive product quality by combining three-dimensional and two-dimensional patterns, reducing the need for multiple illuminating devices and minimizing weight gain.

Implementation Method 1

a lens made of a transparent material, coupled to the housing, and covering an opening provided in the housing; a light source installed in the housing and configured to emit light toward the lens

Methodology Applied
Scientific EffectLight transmission: Light

Implementation Method 2

a first pattern layer disposed between the light source and the lens and including one or more first pattern portions; and a second pattern layer disposed between the first pattern layer and the lens and including one or more second pattern portions

Methodology Applied
Scientific EffectLight transmission through patterned material: Light

Data Source

PatentUS20250271113A1Lighting device for vehicle
Publication Date: 2025.08.28 HYUNDAI MOBIS CO LTD
  • US20250271113A1 patent drawing
  • US20250271113A1 patent drawing
  • US20250271113A1 patent drawing

AI summary

Disclosed is a lighting device for a vehicle according to the present disclosure including: a housing; a lens made of a transparent material, coupled to the housing, and covering an opening provided in the housing; a light source installed in the housing and configured to emit light toward the lens; a first pattern layer disposed between the light source and the lens and including one or more first pattern portions; and a second pattern layer disposed between the first pattern layer and the lens and including one or more second pattern portions.