Folding Mirror Orientation Adjustment via Deformable Clamping
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Solution Overview
Problem
Existing head-up display systems for motor vehicles face challenges in accurately orienting virtual projections to coincide with real obstacles in the driver's field of vision, particularly in augmented reality applications, where precise alignment of virtual elements with real-world objects is necessary.
Innovation Solution
An optical reflection device with a deformable element and adjustable clamping systems is integrated into the folding mirror, allowing for precise adjustment of the reflection direction by applying forces at specific application zones, using screws and deformable materials like rubber or synthetic foam to ensure accurate alignment of virtual projections with real obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a folding mirror is used to reflect projected images in a head-up display, then the driver can view virtual images without taking eyes off the road, but the direction of reflection must be precisely oriented to align virtual elements with real obstacles
Solution Approach 1:
The patent applies the dynamics principle by making the folding mirror adjustable through clamping systems that allow dynamic repositioning. The mirror can be tilted and oriented in different directions using adjustment mechanisms (screws, clamps) that enable precise angular control. This dynamic adjustability allows the reflection direction to be precisely oriented to align virtual elements with real obstacles, while the mirror remains mounted on a rigid support structure for stability during use.
2Adaptability or versatility
If the folding mirror is rigidly fixed to achieve stable reflection, then the alignment precision is maintained, but the ability to adjust the reflection direction is lost
Solution Approach 1:
The patent resolves this contradiction by implementing a dynamic mounting system where the folding mirror is rigidly fixed to a support structure during operation to maintain stability, but includes adjustment mechanisms (clamping systems with screws) that allow temporary loosening for repositioning. Once adjusted to the correct orientation, the clamping systems are tightened to rigidly secure the mirror, ensuring both adjustability during setup and stability during use.
Solution Approach 2:
The patent applies local quality by differentiating the mechanical properties at different locations and states of the mirror mounting. The mirror has a rigid connection to the support structure at the mounting points (achieved through clamping systems), while allowing rotational freedom at the pivot points for adjustment. This localized differentiation of rigidity and flexibility enables both stable fixed positioning and adjustable repositioning.
3Measurement precision
If multiple adjustment points are provided on the folding mirror, then the orientation precision can be improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the adjustment function into multiple independent adjustment points (at least two adjustment means) distributed at different locations on the folding mirror. Each adjustment means (clamping system with screw) controls a specific degree of freedom (tilt angle, rotation angle, or position). This segmentation allows precise control of the mirror's orientation by independently adjusting each parameter, achieving high orientation precision without requiring a single complex adjustment mechanism.
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 enables precise orientation of virtual projections relative to real obstacles, enhancing safety by ensuring accurate superposition of virtual and real elements, thereby improving the driver's ability to navigate safely.
Implementation Method 1
at least one deformable element (5, 21) disposed between the folding mirror (1) and the rigid frame (2), and at least one clamping system (6, 8) adapted to compress said deformable element (5, 21)
Data Source
Figure 1~4
AI summary
The invention relates to an optical reflection device for a motor-vehicle head-up display, having a folding mirror (1) which has a peripheral edge (18) and two opposite sides (19, 20), one of the two sides being a light-reflecting face, and a frame (2) which holds the folding mirror. According to the invention, the device has a means for altering the orientation of the folding mirror (1) with respect to the frame (2), and said means for altering the orientation of the folding mirror (1) has: - at least one deformable element (5, 21) disposed between the folding mirror (1) and the frame (2), and - at least two clamping systems (6, 8, 24, 36) that are designed to compress said deformable element (5, 21) to a greater or lesser extent and are applied in distinct regions, known as application regions (26, 27, 28, 29, 30), of the folding mirror (1). A head-up display for a motor vehicle and a method for adjusting the optical reflection device are mentioned.