Headlight Shielding Wall for Multi-Source Visual Effect

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Solution Overview

Problem

Conventional headlight devices using multiple light sources face power consumption limitations, making it difficult for small-sized vehicles to mount such devices due to performance constraints on their power systems.

Innovation Solution

A headlight device design that uses a single light source and incorporates a shielding wall between the front lens and reflector, creating the appearance of multiple light sources while minimizing power consumption, with the shielding wall being heat-resistant and gradually increasing in width towards the upper portion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If multiple light sources are used in the headlight device, then the illumination intensity and visual appearance are improved, but the power consumption increases

Engineering Contradiction:
Improveillumination intensityVSAvoidpower consumption
Core Design Contradiction:
Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The reflector is divided into multiple reflection regions (first reflection region and second reflection region) that are spatially separated by a partition wall. This segmentation creates multiple distinct light paths from a single light source, making the headlight appear as if multiple light sources are present while actually using only one bulb, thus maintaining low power consumption while achieving the visual effect and illumination intensity of multiple sources

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A partition wall is introduced as an intermediary structure between the light source and the front lens. This partition wall divides the reflection regions and creates separate light paths, enabling the single light source to produce multiple distinct light beams that illuminate different areas, thereby achieving the effect of multiple light sources without the power consumption of actually using multiple bulbs

Inventive Principle:
Principle #24Intermediary (Mediator)

2Shape

If multiple light sources are used in the headlight device, then the visual appearance of multiple lamps is achieved, but the device complexity increases

Engineering Contradiction:
Improvevisual appearanceVSAvoiddevice complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The reflector is segmented into multiple reflection regions separated by a partition wall, creating distinct light paths that give the visual appearance of multiple separate lamps. This segmentation achieves the desired aesthetic effect while maintaining a single integrated headlight structure, avoiding the complexity of mounting and wiring multiple separate light sources

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines multiple reflection regions and light paths within a single headlight housing and single light source assembly. By merging these elements into one integrated structure with a partitioned reflector, the design achieves the visual complexity of multiple lamps while simplifying the actual device structure and reducing the number of components needed

Inventive Principle:
Principle #5Merging (Combining)

3Use of energy by moving object

If a single light source is used instead of multiple light sources, then the power consumption is reduced, but the visual recognition of multiple light sources is lost

Engineering Contradiction:
Improvepower consumptionVSAvoidvisual appearance
Core Design Contradiction:
Use of energy by moving objectVSShape

Solution Approach 1:

The reflector is divided into multiple reflection regions (first and second reflection regions) separated by a partition wall, creating distinct light paths from a single light source. This segmentation makes the headlight visually recognizable as having multiple light sources while actually using only one bulb, thus maintaining low power consumption while achieving the desired visual appearance

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A partition wall is used as an intermediary structure to divide the reflection regions and create separate light paths within the single headlight assembly. This partition wall enables the single light source to produce multiple distinct light beams that illuminate different areas, creating the visual effect of multiple light sources without the power consumption of actually using multiple bulbs

Inventive Principle:
Principle #24Intermediary (Mediator)

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 the visual recognition of a headlight device as using multiple light sources while utilizing a single light source, reducing power consumption and enhancing the appearance without excessive heat interference, thus suitable for small-sized vehicles.

Implementation Method 1

a lamp body including a reflector for reflecting light radiated from the light source

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 2

a shielding wall for shielding at least one of light radiated from the light source and light reflected by the reflector

Methodology Applied
Scientific EffectLight shielding: Absorption (EM radiation)

Data Source

PatentEP1908629B1Headlight device and vehicle
Publication Date: 2014.05.21 YAMAHA MOTOR CO LTD
  • EP1908629B1 patent drawingFigure 1
  • EP1908629B1 patent drawingFigure 2
  • EP1908629B1 patent drawingFigure 3

AI summary

A headlight unit 110 includes a shielding wall 150 for shielding light radiated from a headlight bulb 210, or light reflected by a reflector portion 131. The shielding wall 150 is arranged between a front lens 120 and the reflector portion 131. The headlight unit 110 permits a single light source to be utilized while providing the appearance of using a plurality of light sources.