Vehicle Lighting Optics for Multi-Position Road Pattern Projection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing lighting devices for vehicles require multiple components and increased installation space to form road surface patterns at different locations, limiting their configurational simplicity and leading to potential interference with the vehicle body.

Innovation Solution

A lighting device with a light irradiation unit, optical path adjustment unit, and driving unit that allows for adjustable light paths to form road surface patterns at various locations around a vehicle, using a combination of light sources, lenses, and reflective surfaces to concentrate and direct light effectively, reducing the need for separate lamps and minimizing installation space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate lamps are provided for different locations to form road patterns, then the illumination coverage is improved, but the number of components and installation space increase

Engineering Contradiction:
Improveillumination coverageVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A single lighting device is designed to perform multiple functions by illuminating different road pattern locations through optical path adjustment. The device can form patterns at various locations around the vehicle by adjusting the optical path unit, eliminating the need for separate lamps for each location while maintaining comprehensive illumination coverage.

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

Solution Approach 2:

The lighting device incorporates an adjustable optical path unit that can dynamically change the light radiation direction. By rotating or tilting the optical path adjustment unit, the same lighting device can target different locations on the road surface, providing adaptability without requiring multiple fixed lamps.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If separate lamps are provided for different locations to form road patterns, then the illumination coverage is improved, but the installation space increases

Engineering Contradiction:
Improveillumination coverageVSAvoidinstallation space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The lighting device serves as a universal unit that can illuminate multiple road pattern locations through optical adjustment, replacing multiple separate lamps. This consolidation significantly reduces the installation space required while maintaining the capability to form patterns at various locations around the vehicle.

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

Solution Approach 2:

Multiple lighting functions that would traditionally require separate lamps are merged into a single integrated lighting device. By combining the light source, optical path adjustment mechanism, and control system into one unit, the installation space is minimized while preserving comprehensive illumination coverage.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If the optical path is adjusted to radiate light to different locations, then the configurational simplicity is improved, but interference by the vehicle body may occur

Engineering Contradiction:
Improveconfigurational simplicityVSAvoidvehicle body interference
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The optical path adjustment unit can dynamically change the light radiation direction to avoid vehicle body interference. By rotating or tilting the optical path unit, the system selects optimal trajectories that bypass obstructions such as the vehicle body while maintaining configurational simplicity through a single adjustable device rather than multiple fixed ones.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system adjusts the radiation angle and optical path parameters to avoid interference from the vehicle body. By changing these parameters, the lighting device can direct light around obstructions while maintaining a simple configuration, ensuring that road patterns are formed without being blocked by vehicle structures.

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

Enables the formation of road surface patterns at different locations with reduced installation space and interference prevention, enhancing configurational simplicity and visibility while maintaining light quality and pattern definition.

Implementation Method 1

The light transmission unit may include a plurality of lenses that adjusts concentration of the light generated by the light source unit

Methodology Applied
Scientific EffectLight transmission and concentration: Lens

Implementation Method 2

The light transmission unit may further include a mirror unit that reflects the light that passes through one of the plurality of lenses to another of the plurality of lenses

Methodology Applied
Scientific EffectLight reflection: Reflection

Implementation Method 3

an optical path adjustment unit that adjusts a path of the light radiated from the light irradiation unit to allow a road surface pattern to be formed at a predetermined location on a road surface around a vehicle

Methodology Applied
Scientific EffectOptical path adjustment: Refraction

Data Source

PatentUS11987174B2Lighting device
Publication Date: 2024.05.21 SL CORP
  • US11987174B2 patent drawing
  • US11987174B2 patent drawing
  • US11987174B2 patent drawing

AI summary

A lighting device irradiating light to different locations includes a light irradiation unit that generates light; an optical path adjustment unit that adjusts a path of the light radiated from the light irradiation unit to allow a road surface pattern to be formed at a predetermined location on a road surface around a vehicle; and a driving unit that adjusts the optical path adjustment unit to allow the road surface pattern to be formed at different locations on the road surface around the vehicle.