Segmented Reflector Layout for Multi-View Vehicle Information Display
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Solution Overview
Problem
Existing information display systems, such as optical camouflage and head-up displays, face limitations in designability and installation flexibility due to restrictions on the placement of light projection units, particularly in achieving monocular vision and multiple viewpoints.
Innovation Solution
A reflector with two-dimensionally arranged unit regions, each containing multiple reflecting surfaces that split and reflect luminous flux in various directions, allowing for more freedom in the installation location of the light projection unit by enabling monocular vision and multiple viewpoints without requiring the light projection unit to be on the same axis as the reflector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the light projection unit is placed on the same axis as the reflector to achieve proper reflection, then the reflection function is improved, but the installation flexibility and design freedom are reduced
Solution Approach 1:
The reflector is divided into multiple unit regions, each containing multiple reflecting surfaces with different orientations. This segmentation allows each unit to handle light from different directions, eliminating the need for strict axial alignment between the light projection unit and the reflector center.
Solution Approach 2:
The reflecting surfaces within each unit region are designed with asymmetric orientations relative to the main surface normal. This asymmetric arrangement enables the reflector to properly reflect light regardless of the light projection unit's position, providing design freedom while maintaining reflection functionality.
2Adaptability or versatility
If a single reflecting surface is used, then the structure is simple, but multiple viewpoints and monocular vision cannot be achieved
Solution Approach 1:
Each unit region is segmented into multiple reflecting surfaces, where each surface is oriented to reflect light toward a specific viewpoint direction. This segmentation enables the creation of multiple virtual viewpoints and supports monocular vision requirements without requiring complex external optical systems.
Solution Approach 2:
The solution transitions from a single-plane reflection to a multi-dimensional reflection structure by arranging reflecting surfaces at various angles in three-dimensional space. This dimensional expansion allows light to be reflected toward multiple directions simultaneously, achieving multiple viewpoints from a single reflector location.
3Area of stationary object
If the light projection unit is positioned far from the reflector to avoid obstruction, then the viewing angle is improved, but the installation space requirement increases
Solution Approach 1:
The reflector is segmented into multiple unit regions with reflecting surfaces oriented at different angles. This segmentation allows the system to achieve wide viewing angles even when the light projection unit is positioned close to the reflector, eliminating the need for large installation space while maintaining viewing quality.
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 relaxes the restrictions on the installation location of the light projection unit, allowing for more design flexibility and preventing blurred scenery or images, while ensuring that the displayed information is recognized as part of the background, thus reducing driver fatigue and improving the viewing experience.
Implementation Method 1
Each of the unit regions includes a plurality of reflecting surfaces two-dimensionally arranged, and splits a luminous flux entering the plurality of reflecting surfaces to perform reflection in a plurality of directions
Data Source
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AI summary
A movable body according to an embodiment of the present disclosure includes a vehicle body and an information display apparatus mounted on the vehicle body. The information display apparatus provided at the movable body includes a light projecting part that projects a luminous flux and a reflector that reflects the luminous flux from the light projecting part. The reflector includes a plurality of unit regions two-dimensionally arranged over a main surface. Each of the unit regions includes a plurality of reflecting surfaces two-dimensionally arranged, and splits a luminous flux entering the plurality of reflecting surfaces to perform reflection in a plurality of directions.