Folding Mirror Rotation Mechanism for Head-Up Display Adaptability

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Solution Overview

Problem

Existing head-up display systems do not easily adapt the position of light rays to accommodate users of different sizes, making it difficult for drivers to effectively view virtual images without looking away from the road.

Innovation Solution

The rotation means for the folding mirror is located at the edge region opposite the partially transparent blade, allowing for easy adjustment of light ray position and concealment within a casing, enabling precise adaptation to any user's needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If rotation means are located in a conventional position for adjusting light ray position, then adaptability to different users is improved, but device complexity and space requirements increase

Engineering Contradiction:
Improveadaptability to different usersVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The rotation means are positioned at the edge region of the support, utilizing the lateral dimension rather than conventional longitudinal positioning. This dimensional repositioning allows the rotation mechanism to be integrated into the edge structure, reducing overall device complexity while maintaining full rotational functionality for adapting light ray positions to different user eye levels.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If rotation means are positioned to be concealed within casing, then ease of manufacture and aesthetics are improved, but accessibility for adjustment may be reduced

Engineering Contradiction:
Improveease of manufactureVSAvoidaccessibility for adjustment
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The edge region of the support acts as an intermediary zone between the internal optical components and the external environment. By positioning rotation means at this edge region, the mechanism can be partially concealed within the casing for manufacturing simplicity and aesthetic purposes, while still providing sufficient accessibility for users to perform adjustments without requiring complete exposure of the internal mechanisms.

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

This solution allows for easy adjustment of light ray position to suit different users, enhancing driver safety by maintaining focus on the road while providing clear, adaptable virtual images.

Implementation Method 1

a folding mirror (11) arranged between said screen (5) and said partially transparent blade (9) so as to reflect the light beam in the direction of said partially transparent blade (9)

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 2

a partially transparent blade which reflects these light rays towards the driver so as to form virtual images in the field of vision of the driver

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentEP3553585B1Head-up display system
Publication Date: 2022.09.21 VALEO COMFORT & DRIVING ASSISTANCE
  • EP3553585B1 patent drawingFigure 1~2b
  • EP3553585B1 patent drawingFigure 3~4

AI summary

The invention relates to a head-up display system (1) comprising: - an image generation device (3) designed to generate a light beam, and - a folding mirror (11) arranged to reflect the light beam towards a partially transparent blade (9), said folding mirror comprising a support (15) and a means of rotation (19) about an axis of rotation, said support having an edge region (151) of the support (15) located opposite the partially transparent blade, characterized in that said means of rotation is located at the edge region (151) of the support (15) located opposite the partially transparent blade.