Vehicle Interior Hologram Light Guide Layout for Compact Integration
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Solution Overview
Problem
Existing display devices for vehicle interiors face challenges in achieving a compact structure and efficient use of installation space due to tight installation conditions and the need for multiple components, which complicates the integration of holographic lighting systems.
Innovation Solution
A display device comprising multiple light sources and light guides with reflective areas and holograms, arranged to allow light to interact directly with holograms, optimizing the structure for compactness and enabling holographic image generation with minimal space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple light reflections are used in flat light guides, then light can be guided through the entire light guide surface, but light and dark stripes become visible in the reconstructed hologram
Solution Approach 1:
The patent extracts the light reflection function from the light guide interfaces and relocates it to a dedicated reflective area within the light guide. This separates the light guiding function from the light reflection function, eliminating the harmful light and dark stripes while preserving the hologram quality.
Solution Approach 2:
The patent introduces a reflective area as an intermediary element within the light guide. This reflective area acts as a mediator that redirects light at the correct angle to illuminate the hologram without causing multiple reflections at the light guide interfaces that would produce visible stripes.
2Manufacturing precision
If precise illumination angles are required for holograms, then holographic images can be generated, but installation complexity increases
Solution Approach 1:
The light guide with its integrated reflective area automatically performs the angle correction function. The reflective area is positioned and oriented within the light guide to inherently provide the correct illumination angle for the hologram, eliminating the need for external adjustment mechanisms or complex installation procedures.
Solution Approach 2:
The patent changes the spatial parameters of the light guide system by integrating a reflective area at a specific position and orientation within the light guide. This structural parameter change enables the system to self-adjust the illumination angle, simplifying installation while maintaining precise angle requirements.
3Reliability
If holographic display functions are added to vehicle interior, then attention and safety increase, but installation space requirements increase
Solution Approach 1:
The patent nests the hologram and reflective area within the existing light guide structure. The hologram is positioned at or near the light guide, and the reflective area is integrated into the light guide's internal structure, creating a compact nested arrangement that minimizes installation space while maintaining safety functions.
Solution Approach 2:
The patent utilizes the internal three-dimensional space of the light guide by positioning the reflective area and hologram at different depths and positions within the light guide structure. This dimensional arrangement allows compact integration without increasing the external footprint of the display device.
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
The solution allows for a compact and space-efficient display device that can be integrated into various vehicle interior locations, providing dynamic holographic images for enhanced safety and customization, while avoiding multiple reflections and stripes.
Implementation Method 1
The coupled light is totally reflected several times between the front and rear interfaces of the light guide and thus guided through the entire light guide surface
Implementation Method 2
is reflected by the reflective area inside the light guide in the direction of the hologram
Implementation Method 3
The interaction of the light with the holograms creates several holographic images that can be perceived by a user located in the interior of the vehicle
Data Source
AI summary
A display device for the interior of a vehicle comprises light sources, light guides, and holograms. The light guides are arranged next to one another and each has an entrance surface and a reflective area. Each light source emanates light that enters the entrance surface of an associated light. At least one of the holograms is arranged at or in each light guide. The light emanated by each light source enters the entrance surface of the associated light guide in a direction of the reflective area of the associated light guide, is reflected by the reflective area of the associated light guide in a direction of the hologram of the associated light guide, and interacts with the hologram of the associated light guide.