Volume Scanning 3D Floating Image Display Using Retroreflector Arrays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing three-dimensional display methods using convex lenses or concave mirrors suffer from distortion due to aberration and instability in positioning, making it difficult to achieve distortion-free three-dimensional floating image projection.
Innovation Solution
A volume scanning three-dimensional floating image display device utilizing a real mirror image forming optical system, such as a dihedral corner reflector array or retroreflector array, with an actuator that moves the display in a three-dimensional motion to project distortion-free images above a symmetry surface, allowing for multiple viewpoint observation without the need for additional viewing aids like glasses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If convex lenses or concave mirrors are used in the optical system, then three-dimensional real image formation is achieved, but distortion occurs due to aberration and positioning stability is difficult to achieve
Solution Approach 1:
The patent divides the optical system into multiple planar mirrors arranged in specific configurations (such as perpendicular arrangements or angled arrangements) instead of using single curved optical elements. This segmentation of the optical path into multiple flat reflection surfaces eliminates aberration-induced distortion while maintaining the ability to form three-dimensional real images, and improves positioning stability through the rigid planar structure
Solution Approach 2:
The patent uses planar mirrors to create virtual copies of the display at multiple positions and angles, forming a three-dimensional real image through coordinated reflection. Each planar mirror creates an accurate geometric copy of the display image without the distortion that would occur with curved lenses or mirrors, achieving distortion-free three-dimensional visualization
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
Enables the creation of distortion-free, three-dimensional floating images that can be viewed from multiple angles, improving user experience by eliminating the need for glasses and addressing the limitations of previous technologies in terms of stability and distortion.
Implementation Method 1
a real mirror image forming optical system, such as a dihedral corner reflector array or retroreflector array
Implementation Method 2
a real mirror image forming optical system, such as a dihedral corner reflector array or retroreflector array
Data Source
AI summary
A volume scanning three-dimensional floating image display is constructed from a real mirror image forming optical system capable of forming the real mirror image of an object to be projected in a planar symmetric position with respect to a symmetry surface, and a display located under the symmetry surface showing images that serve as the object to be projected, and an actuator means capable of moving the display in a direction with a component perpendicular to the display surface, so by changing the displayed image synchronously with the motion of the display, the real mirror image of that image will be formed in the space on the other side of the symmetry surface as a three-dimensional floating image.