Rotating Drum Holographic Lens Array for Continuous Beam Translation
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Solution Overview
Problem
Current holographic stereogram recording technologies are limited by mechanical translation stages, which restrict recording speed and efficiency, especially when trying to achieve fast and continuous updates of 3D images.
Innovation Solution
The implementation of a rotating belt with holographic lenses that translates continuously along its surface, eliminating the need for a mechanical translation stage and allowing for uninterrupted recording and refreshing of holographic stereograms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a mechanical translation stage is used to move the holographic recording material, then the system structure is simple and easy to control, but the recording speed is limited and cannot achieve continuous fast updates
Solution Approach 1:
The patent replaces the mechanical translation stage with a rotating drum mechanism that carries holographic lenses. The drum rotation continuously translates the object beam across the recording material without mechanical stages, achieving high-speed continuous recording. The drum can rotate at controlled speeds to match the required hogel writing rates, eliminating the speed limitation of mechanical translation stages.
Solution Approach 2:
The system transitions from static mechanical positioning to dynamic continuous rotation. The rotating drum provides continuous motion rather than step-by-step mechanical translation, enabling uninterrupted recording. The rotation speed can be dynamically adjusted to match the holographic recording rate requirements, achieving both speed and continuity.
2Productivity
If a mechanical translation stage is used, then the system is easier to implement, but it cannot achieve uninterrupted continuous recording due to mechanical constraints
Solution Approach 1:
The rotating drum enables continuous uninterrupted recording by maintaining constant motion of the object beam across the recording material. Unlike mechanical translation stages that require stopping and reversing, the drum rotation provides continuous forward motion, allowing the holographic recording to proceed without interruption at high speeds.
Solution Approach 2:
The system segments the holographic lens array onto discrete sections of the rotating drum. Each drum section carries specific hogel data, and as the drum rotates, different sections pass by the recording material in sequence. This segmentation allows parallel preparation and continuous transfer of holographic data, increasing refresh rate.
3Loss of time
If mechanical translation stages are used for beam positioning, then the system structure is simpler, but the hogel writing rate is limited and cannot support real-time processing
Solution Approach 1:
The rotating drum operates at periodic intervals synchronized with the holographic recording requirements. Each rotation cycle corresponds to a complete set of hogel writings, and the periodic rotation ensures that each hogel position receives its data at the optimal moment. This periodic action minimizes the time required for complete hogel writing cycles.
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 significantly enhances recording speed and enables continuous refresh of 3D images, overcoming the limitations of mechanical constraints and achieving faster hogel writing rates, supporting real-time processing and display of 3D images from various sources.
Implementation Method 1
a spatial light modulator configured to cause an object beam to pass through the one or more holographic lenses such that the one or more holographic lenses focus the object beam onto the holographic recording material
Implementation Method 2
a light source configured to cause a reference beam to be incident on the holographic recording material such that the holographic recording material stores information based on one or more of the reference beam and the object beam
Data Source
AI summary
The present disclosure relates to systems and methods for translating optical beams.