Vehicle Lamp Image Alignment for Split Road Projection

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Solution Overview

Problem

Existing vehicle lighting systems face issues with image distortion or gaps when projecting images using left and right headlamps, impairing visibility and aesthetics.

Innovation Solution

A vehicle lamp system that includes a control unit to divide an image into two parts and adjust the angles or coordinates of left and right lamps to align projection images on the road surface without distortion, using grid images for alignment and potentially adjusting lamp positions or image coordinates to correct misalignments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If an image is divided and projected by left and right headlamps, then the coverage area is improved, but image alignment and distortion are worsened

Engineering Contradiction:
Improveprojection coverage areaVSAvoidimage alignment precision
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The system captures images of the projected grid patterns using a camera, detects the positions of grid points, and calculates deviation values. Based on this feedback, the control unit adjusts the projection coordinates to correct alignment errors and eliminate gaps or overlaps between left and right headlamp projections.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts projection parameters including coordinates, angles, and positions of the headlamps based on detected grid point deviations. By changing these parameters in real-time, the system compensates for installation misalignments and road surface variations to achieve precise image matching.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If headlamp alignment is not precisely adjusted, then installation complexity is reduced, but projection image quality is worsened

Engineering Contradiction:
Improveinstallation easeVSAvoidprojection image quality
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The system performs self-alignment by automatically detecting grid point positions, calculating deviations, and adjusting projection parameters without requiring manual alignment adjustments. This enables the system to compensate for installation errors automatically, maintaining high image quality while simplifying the installation process.

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If grid images are used for alignment adjustment, then image alignment precision is improved, but device complexity is worsened

Engineering Contradiction:
Improveimage alignment precisionVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system introduces grid images as an intermediary alignment tool. These grid patterns serve as reference markers that facilitate precise measurement and adjustment of projection alignment, enabling accurate image matching while maintaining relatively simple system architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12583381B2Vehicle lamp system
Publication Date: 2026.03.24 HYUNDAI MOBIS CO LTD
  • US12583381B2 patent drawing
  • US12583381B2 patent drawing
  • US12583381B2 patent drawing

AI summary

The present invention relates to a vehicle lamp system for matching two images projected on a road surface in a case where one image is output in a divided manner by a left lamp and a right lamp in image projection on the road surface by vehicle lamps.