Spatial Projection Optics for Bright 3D Images With Simpler Layout
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Solution Overview
Problem
Existing spatial projection techniques struggle to create a clear and high-luminance image that can be easily enlarged and displayed in a three-dimensional space without significantly altering the overall configuration.
Innovation Solution
A spatial projection apparatus utilizing a projection device, optical medium, and light guide optical system that reimages projected light to form a spatial projection image, allowing for high-luminance, three-dimensional image display with a simple configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional spatial projection technique using multiple optical components (Fresnel lenses, beam splitters, mirrors) is used, then an image can be projected in space, but the configuration becomes complex and luminance is reduced
Solution Approach 1:
The patent extracts and eliminates unnecessary optical components from the conventional projection system. By removing the beam splitter and one Fresnel lens, the system achieves the same spatial projection function with fewer elements, directly reducing configuration complexity while maintaining or improving luminance through reduced optical losses
Solution Approach 2:
The patent merges the functions of multiple optical components into a simplified configuration. The remaining optical elements (projection lens, display element, and single Fresnel lens) are arranged to perform multiple functions simultaneously, reducing the overall component count and simplifying the system while preserving the aerial image projection capability
2Area of moving object
If the projection system is enlarged to display larger images in three-dimensional space, then the visual effect is enhanced, but the device configuration becomes more complex
Solution Approach 1:
The patent employs a display element with adjustable resolution and projection lens with variable focal length, allowing the system to dynamically adapt to different image size requirements. This dynamic capability enables large-scale three-dimensional image display without requiring a permanently complex configuration, as the system can be optimized for each specific application scenario
Solution Approach 2:
The simplified optical configuration is designed to be universally applicable across different image sizes and projection distances. The core components can handle various display requirements by adjusting operational parameters rather than requiring different hardware configurations, enabling scalable three-dimensional image display
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 clear and high-luminance spatial projection images that can be easily enlarged and displayed in a three-dimensional space with a simple configuration, enhancing visual effects.
Implementation Method 1
an optical medium 20 on which a projected light P1 emitted from the projection device 10 is irradiated (projected), formed into an image, and diffused
Implementation Method 2
an optical medium 20 on which a projected light P1 emitted from the projection device 10 is irradiated (projected), formed into an image, and diffused
Implementation Method 3
a light guide optical system 30 that guides a light beam projected and diffused on the optical medium 20
Data Source
AI summary
A spatial projection apparatus is provided. The apparatus includes an optical medium that diffuses a projected light. The apparatus further includes a light guide optical system that guides the projected light diffused by the optical medium and forms an image on a spatial imaging unit. The optical medium can be formed with a plate shape, a film shape, a three-dimensional shape including unevenness, in smoke-form, fluid-form, or mist-form.