Line Segment Hologram Generation Using Astigmatic Phase Modulation
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Solution Overview
Problem
Existing methods for generating holograms, such as point cloud and layer-based methods, require significant computational resources and bulky hardware to create detailed holograms with smooth transitions, making them costly and inefficient.
Innovation Solution
A method using a spatial light modulator that simulates the effect of an astigmatic lens by setting the modulated light phase to elliptical, hyperbolic, or parabolic phases, allowing direct generation of line segment holograms with limited computational resources and hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If point cloud methods or layer-based methods are used to generate detailed holograms with smooth transitions, then the quality and detail of the hologram is improved, but the computational resources required and the hardware complexity increase significantly
Solution Approach 1:
The patent segments the hologram generation process by representing complex three-dimensional objects as collections of simple line segments. Each line segment is defined by minimal parameters (start and end coordinates), allowing detailed holographic representations to be constructed from basic geometric elements that require far fewer computational resources than point cloud or layer-based approaches.
Solution Approach 2:
The patent changes the parameter representation from thousands of points or multiple bidimensional layers to just a few parameters per line segment. By representing each segment with minimal coordinates and using mathematical formulations for phase modulation, the system achieves detailed holograms with reduced computational complexity and smaller hardware requirements.
2Manufacturing precision
If point cloud methods or layer-based methods are used to generate detailed holograms with smooth transitions, then the quality and detail of the hologram is improved, but the computational resources required increase significantly
Solution Approach 1:
The patent segments the hologram generation process by representing complex three-dimensional objects as collections of simple line segments. Each line segment is defined by minimal parameters (start and end coordinates), allowing detailed holographic representations to be constructed from basic geometric elements that require far fewer computational resources than point cloud or layer-based approaches.
Solution Approach 2:
The patent changes the parameter representation from thousands of points or multiple bidimensional layers to just a few parameters per line segment. By representing each segment with minimal coordinates and using mathematical formulations for phase modulation, the system achieves detailed holograms with reduced computational complexity and smaller hardware requirements.
3Manufacturing precision
If a large number of points are generated and continuously modified to form detailed holograms, then the smoothness and detail of the hologram is improved, but the operational cost and hardware requirements increase
Solution Approach 1:
The patent segments the hologram generation process by representing complex three-dimensional objects as collections of simple line segments. Each line segment is defined by minimal parameters (start and end coordinates), allowing detailed holographic representations to be constructed from basic geometric elements that require far fewer computational resources than point cloud or layer-based approaches.
Solution Approach 2:
The patent changes the parameter representation from thousands of points or multiple bidimensional layers to just a few parameters per line segment. By representing each segment with minimal coordinates and using mathematical formulations for phase modulation, the system achieves detailed holograms with reduced computational complexity and smaller hardware requirements.
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 generation of detailed holograms with smooth transitions using reduced computational resources and cost-effective hardware, enabling real-time updates and integration into head-mountable devices for augmented reality.
Implementation Method 1
A method using a spatial light modulator that simulates the effect of an astigmatic lens by setting the modulated light phase to elliptical,hyperbolic, or parabolic phases
Implementation Method 2
a control of the modulator that causes the modulated light beam to generate a set of points (usually hundreds or thousands) distributed in space
Data Source
Figure 1
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AI summary
Method for generating a hologram comprising at least a line segment, comprising the step of illuminating a modulating element with a coherent light beam obtaining a modulated light beam having a modulated light phase, wherein the modulating element sets the modulated light phase simulating the effect of an astigmatic lens.