Retroreflector Design for Air Floating Video Stability
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Solution Overview
Problem
Conventional air floating video information display systems suffer from malfunctions due to external light incident on the retroreflector and lack optimization in design, including the light source, which affects the image quality of the air floating video.
Innovation Solution
The system incorporates a display panel, a light source apparatus, and a retroreflector designed to reflect an air floating video as a real image in the air. The retroreflector is configured to minimize the generation of ghost images and optimize the design to reduce the impact of external light, ensuring high visibility and contrast of the air floating video.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a retroreflector is used to generate an air floating video, then the video can be displayed in space, but external light incident on the retroreflector causes malfunctions and reduces image quality
Solution Approach 1:
The patent converts the harmful effect of external light incident on the retroreflector into a beneficial outcome by designing a system where the retroreflector's regular reflection property is utilized to reflect external light away from the display panel, thereby preventing ghost images and malfunctions while maintaining air floating video display stability
Solution Approach 2:
The patent optimizes the retroreflector's inclination angle as a key parameter to control the direction of reflected external light, ensuring that external light is redirected away from the display panel. By adjusting this angular parameter, the system achieves reliable air floating video display while minimizing the harmful effects of external light
2Manufacturing precision
If the retroreflector design is not optimized, then ghost images are generated, but optimizing the design increases system complexity
Solution Approach 1:
The patent achieves ghost image reduction by optimizing key parameters of the retroreflector, including its inclination angle and reflection properties, rather than introducing complex additional components. This parameter-based optimization maintains manufacturing precision while controlling system complexity
Solution Approach 2:
The retroreflector is designed to perform multiple functions: generating the air floating video through retroreflection and simultaneously reflecting external light away from the display panel through regular reflection. This multi-functionality reduces the need for additional components, thereby controlling system complexity while achieving ghost image reduction
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 effectively maintains high image quality of the air floating video even when external light is incident, reducing ghost image generation and enhancing visibility and contrast.
Implementation Method 1
a retroreflector that reflects an air floating video as a real image in air by the reflected light
Implementation Method 2
a light source apparatus that supplies light to the display panel
Data Source
AI summary
A video is suitably displayed outside a space. The present invention contributes to the following sustainable development goals: “3. Good health and well-being”; “9. Industry, innovation and infrastructure”; and “11. Sustainable cities and communities”. This air floating video display system includes: a display panel for displaying images; a light source apparatus for supplying light to the display panel; and a retroreflector that reflects image light from the display panel and that causes the air floating video to be displayed as a real image in air by using the reflected light.