Aerial Floating Image Display With Retroreflection and Ghost Image Control
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Solution Overview
Problem
Existing aerial floating video display technologies do not adequately consider brightness and quality, making it difficult for users to enjoyably recognize the video.
Innovation Solution
An aerial floating video display apparatus comprising a video processor, display, and optical system that processes video to generate a virtual 3D space with a specific focal length and angle of view, using a retroreflection plate to create a clear, high-resolution, and secure air floating video.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional aerial floating video display is used, then the basic video display function is achieved, but the brightness and visual quality are insufficient for enjoyable user recognition
Solution Approach 1:
The patent applies parameter changes by precisely controlling the focal length of the virtual 3D space camera according to the formula Lf≥Lm×Fi/Pa, where Lm is visual distance, Fi is diagonal length of 35mm film, and Pa is diagonal length of display screen. This parameter optimization enables both high brightness and excellent visual quality in the aerial floating video display
Solution Approach 2:
The patent replaces conventional video processing with a virtual 3D space rendering system that uses perspective drawing methods and 3D camera simulation. This substitution creates a more suitable optical configuration that simultaneously improves brightness and visual recognition quality
2Manufacturing precision
If high resolution video is displayed in aerial floating format, then visual quality improves, but ghost images and security issues increase
Solution Approach 1:
The patent uses a retroreflection plate to create a virtual image copy of the display screen content in aerial floating format. This optical copying method produces clear high-resolution video while eliminating ghost images through precise optical path control, and enhances security by creating an invisible display that cannot be captured by conventional cameras
3Adaptability or versatility
If aerial floating video display is implemented, then innovative display capability is achieved, but power consumption increases
Solution Approach 1:
The patent employs a retroreflection plate that passively returns light to form the aerial floating video without requiring additional active optical components or power sources. The display system uses the existing display screen as the light source, and the retroreflection plate self-organizes the optical path to create the floating video effect, thereby reducing overall power consumption while maintaining innovative display capability
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 apparatus achieves a more suitable aerial floating video display with enhanced brightness, quality, and security, reducing power consumption and ghost images, allowing high-resolution video display in a transparent environment.
Implementation Method 1
an optical system configured to generate an aerial floating video based on the video displayed on the display
Data Source
Figure 1
Figure 2A(1)~2A(2)
Figure 2B~2C
AI summary
A more suitable aerial floating video display apparatus is provided. According to the present invention, it is possible to contribute to "Goal 3: Ensure healthy lives and promote well-being for all at all ages", "Goal 9: Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation" and "Goal 11: Make cities and human settlements inclusive, safe, resilient and sustainable" in the Sustainable Development Goals (SDGs). The aerial floating video display apparatus is configured such that a video processor performs video processing on a video generated by rendering a virtual 3D space in which an object of a character is positioned, the rendering of the virtual 3D space is performed by capturing by a virtual 3D space camera set in the virtual 3D space and using a perspective drawing method, and the video generated by the rendering and displayed on the display is a video captured and rendered from the virtual 3D space in which the object of the character is positioned by setting an angle of view of the virtual 3D space camera so as to satisfy Lf≥Lm×Fi/Pa.