Stereoscopic Lighting Device Using Embedded Light Guide Layer
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Solution Overview
Problem
Conventional stereoscopic lighting devices for vehicles are complex and costly to produce due to the need for densely packed LED light sources and intricate structures to achieve 3D effects, requiring a large number of LEDs to cover wide areas and maintain luminous intensity, leading to increased production costs and design complications.
Innovation Solution
A stereoscopic lighting device with a thin thickness, utilizing a light guide layer, a reflective layer, and a half mirror layer to diffuse and guide light, reducing the number of LEDs needed by embedding the light source and reflective layer within the light guide layer, and adjusting the distance between the reflective and half mirror layers to control perceptional depth, allowing for flexible design and production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a plurality of LED light sources is disposed in a three-dimensional structure to implement 3D stereoscopic lighting, then the 3D lighting effect is improved, but the device complexity and production costs increase
Solution Approach 1:
A light guide layer is introduced as an intermediary component between the LED light source and the reflective layer. This light guide layer diffuses and guides light to create the 3D stereoscopic lighting effect, eliminating the need for complex three-dimensional LED arrangements while maintaining the desired lighting effect.
Solution Approach 2:
The patent replaces the mechanical arrangement of multiple LEDs in three-dimensional space with an optical system consisting of a light guide layer and reflective layer. This substitution transforms the approach from mechanically complex LED positioning to a simpler optical layer structure that achieves the same 3D lighting effect.
2Illumination intensity
If LED light sources with narrow glancing angle are used to cover wide light emitting area, then the luminous intensity is improved, but the number of LED light sources must be increased leading to higher production costs
Solution Approach 1:
The light guide layer acts as a mediator that redistributes light from LEDs with narrow glancing angles across a wider area. By guiding and diffusing light through this intermediate layer, the system achieves wide area coverage without requiring a proportional increase in the number of LED light sources.
Solution Approach 2:
The patent utilizes the thickness dimension by stacking multiple functional layers (light guide layer, reflective layer, etc.) to achieve wide area coverage. This dimensional approach allows light to be distributed across the surface area through vertical layering rather than requiring more LEDs horizontally.
3Illumination intensity
If LEDs are densely disposed between three-dimensional structures to form natural 3D stereoscopic lighting, then the lighting effect is improved, but the manufacturing precision and production costs increase
Solution Approach 1:
The patent replaces the need for precise mechanical positioning of multiple LEDs in three-dimensional space with a planar layer structure. The light guide layer and reflective layer are arranged in simple two-dimensional planes, eliminating the need for complex three-dimensional LED positioning and reducing manufacturing precision requirements.
Solution Approach 2:
Instead of requiring all LEDs to be precisely positioned throughout the entire three-dimensional structure, the patent applies functional layers locally. The light guide layer and reflective layer are positioned at specific locations to achieve the 3D lighting effect, reducing the overall precision requirements compared to dense LED disposal.
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 enables efficient implementation of deep three-dimensional lighting effects with reduced LED usage, simplified production, and cost-effective manufacturing, while maintaining high light efficiency and stability, suitable for various applications including vehicle lighting.
Implementation Method 1
utilizing a light guide layer, a reflective layer, and a half mirror layer to diffuse and guide light
Implementation Method 2
embedding the light source and reflective layer within the light guide layer
Implementation Method 3
adjusting the distance between the reflective and half mirror layers to control perceptional depth
Data Source
AI summary
Provided are a stereoscopic display device capable of implementing a deep three-dimensional effect via a light source module having a thin thickness and a vehicle lighting device using the stereoscopic display device, the stereoscopic lighting device, including: a base substrate; a light source on the base substrate; a reflective layer disposed on one surface of the base substrate; a light guide layer burying the light source and the reflective layer; and a first half mirror layer disposed on the light guide layer.