Reconfigurable Mirror Array for Dynamic 3D Image Construction
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Solution Overview
Problem
Existing methods for creating three-dimensional images rely on permanent optical recording media, limiting the ability to produce a temporal sequence of different 3D images and being inconvenient for practical applications.
Innovation Solution
The use of a reconfigurable mirror array to modulate coherent light beams, allowing for the production of a sequence of substantially different 3D images by positioning micro-mirrors to replicate the pixel-by-pixel map of relative phases and amplitudes of light scattered by a scene, enabling the creation of 3D images without the need for permanent recording media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If permanent optical recording media are used to create 3D images, then the 3D image can be produced, but the ability to produce a temporal sequence of different 3D images is limited
Solution Approach 1:
The patent replaces static permanent holograms with a dynamic reconfigurable mirror array where each micro-mirror can be independently positioned to different angles. This dynamic reconfiguration allows the system to generate different 3D images in sequence over time, enabling temporal multiplexing of multiple holographic images without requiring multiple permanent recording media.
Solution Approach 2:
The patent changes the physical state of the optical recording medium from a fixed permanent medium to a reconfigurable array of micro-mirrors. By controlling the orientation parameter of each micro-mirror individually, the system can dynamically alter the wavefront characteristics to produce different 3D images sequentially, achieving adaptability without permanent media.
2Ease of operation
If permanent optical recording media are used, then 3D images can be produced, but convenience for practical applications is reduced
Solution Approach 1:
Instead of using permanent recording media that require physical development and processing, the patent creates a digital copy of the holographic data stored as control signals for the micro-mirror array. This allows the 3D image to be regenerated electronically by simply changing the control signals, eliminating the need for physical chemical processes and making the system much more convenient for practical use.
3Adaptability or versatility
If reconfigurable mirror array is used, then temporal sequence of different 3D images can be produced, but device complexity increases
Solution Approach 1:
The patent divides the optical recording function into discrete segments by using an array of independent micro-mirrors, each capable of being controlled separately. This segmentation allows the complex function of dynamic holographic recording to be broken down into simple, independent units that can be controlled individually, making the overall system more manageable despite the increased number of components.
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
This approach allows for the adaptable construction of a temporal sequence of different 3D images, including video, at high frame rates sufficient to provide human perception of 3D video, overcoming the limitations of permanent holograms.
Implementation Method 1
relative phases of coherent light scattered by or transmitted through a desired scene
Implementation Method 2
positioning micro-mirrors of a reconfigurable mirror array to produce reflected light whose wave front has the pixel-by-pixel map
Data Source
AI summary
A method for producing a 3D image includes providing a pixel-by-pixel map over a preselected aperture of relative phases for coherent light scattered by or transmitted through a desired scene. The method includes positioning micro-mirrors of a reconfigurable mirror array to produce reflected light whose wave front has the pixel-by-pixel map over the preselected aperture in response to the array being illuminated with a coherent light beam. The method includes illuminating the reconfigurable mirror array with the coherent light beam to enable producing a 3D image of the desired scene.