Bent Pyramid Holographic Apparatus for On-Axis Transmission
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Solution Overview
Problem
Prior art methods for creating holograms, particularly in-line and on-axis transmission holograms, suffer from double images and zero-order aberrations, limiting their practicality and effectiveness in producing viable holograms of both physical objects and digital images.
Innovation Solution
A hybrid optical apparatus utilizing a bent pyramid or teepee structure with highly reflective surfaces and adjustable dihedral mirrors, employing Laplace Transform concepts to create a coaxial setup for coherent light beams, allowing for the production of on-axis transmission holograms that can be viewed from any angle without prior art's limitations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If in-line holography is used with coaxial beams, then the setup is simple, but double images and zero-order aberrations occur
Solution Approach 1:
The patent introduces an asymmetric angle θ between the object beam and reference beam, departing from the conventional coaxial (0°) or off-axis (45°) arrangements. This asymmetric configuration creates a geometric relationship that eliminates the double images and zero-order aberrations inherent in in-line holography, while maintaining relative simplicity in the overall setup.
Solution Approach 2:
The patent transitions from two-dimensional beam alignment to a three-dimensional geometric arrangement by introducing the angle θ as a spatial parameter. This dimensional addition allows the beams to be separated in space while maintaining coherence, enabling on-axis transmission holograms without the artifacts of prior art.
2Reliability
If off-axis holography is used with 45° beam separation, then double images are reduced, but the system becomes more complex and less practical
Solution Approach 1:
The patent optimizes the beam separation angle parameter θ, suggesting values such as 15°, 30°, or other angles that balance hologram quality with system practicality. This parameter optimization avoids the extremes of 0° (coaxial) and 45° (off-axis), creating a practical middle ground that produces high-quality on-axis transmission holograms with manageable system complexity.
3Reliability
If conventional holographic methods are used, then the theory is established, but practical transmission holograms cannot be created
Solution Approach 1:
The patent divides the holographic system into distinct functional components: object beam path, reference beam path, and recording medium arrangement. This segmentation allows for independent optimization of each component and simplifies the overall implementation, making practical transmission holograms achievable with standard optical elements.
Solution Approach 2:
The patent introduces an intermediary geometric relationship (the angle θ between beams) that mediates between the object and reference beams. This intermediary angular separation enables the coherent superposition of beams on the recording medium while maintaining on-axis transmission capability, bridging the gap between theory and practical implementation.
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 robust, practical on-axis transmission holograms of physical objects and digital images, overcoming the limitations of prior art by producing nearly perfect replicas with enhanced versatility across the electromagnetic spectrum, including the visible and invisible spectrum.
Implementation Method 1
A bent pyramid or teepee structure with highly reflective surfaces and adjustable dihedral mirrors
Implementation Method 2
it is necessary to superimpose two coherent light beams, which are incident on the same photographic plate/means or other suitable recording device
Data Source
AI summary
An advanced method of and apparatus for manipulating electromagnetic spectra, which incorporates a bent tepee or bent pyramidal aligned array of conical or pyramidal inverted sections that have at least two intrinsic angles of differing values aligned co-axially. These are arranged to naturally produce a reference and object waves that impinges on and illuminate a holographic plate or recording means to produce on-axis or in-line transmission and reflection holograms, including real time display. The technology is also applicable to the detection, identification, and/or decoding of genetic material, specifically DNA and the Human Genome.