Gemstone Scintillation Mapping via Angular Spectrum Ray Tracing
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Solution Overview
Problem
The challenge in evaluating and objectively quantifying the scintillation of diamonds, a dynamic phenomenon requiring movement, has made it difficult to provide a fixed grading criteria, limiting the ability to compare and document the scintillation of gemstones effectively, especially in static formats like paper documents.
Innovation Solution
A method and system that utilize the angular spectrum of a gemstone to create static images or maps representing scintillation potential, independent of illumination scenarios, by tracing rays and coding intersections to produce cumulative maps showing flash and fire scintillation, allowing for objective evaluation and comparison.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If scintillation is evaluated through dynamic movement and live observation, then the accuracy of scintillation assessment is improved, but the complexity and difficulty of documentation and comparison are worsened
Solution Approach 1:
The patent creates a static copy representation of the dynamic scintillation effect through angular spectrum mapping. The system traces light rays through the gemstone at multiple angles and produces a coded image that replicates the scintillation pattern without requiring actual movement or live observation, thus capturing the dynamic effect in a static format for easy documentation and comparison
Solution Approach 2:
The patent transforms the dynamic temporal dimension of scintillation (changes over time as stone moves) into a static spatial dimension (angular spectrum map showing light distribution across different angles). By mapping scintillation characteristics onto a two-dimensional angular spectrum, the system preserves the essential information while eliminating the need for continuous movement and live observation
2Measurement precision
If traditional four C's grading criteria are used, then objective ranking is improved, but the ability to capture dynamic scintillation effects is worsened
Solution Approach 1:
The patent segments the scintillation evaluation into distinct angular zones and light paths. By dividing the angular spectrum into specific regions and tracing rays through different facets at multiple angles, the system creates detailed localized maps of scintillation potential. This segmentation allows objective measurement of specific angular characteristics while preserving the dynamic nature of the effects through multi-angle analysis
3Ease of manufacture
If scintillation is demonstrated through live movement under specific lighting conditions, then the visual effect is improved, but the adaptability to different environments and documentation is worsened
Solution Approach 1:
The patent creates a universal angular spectrum map that represents scintillation characteristics independent of specific lighting conditions or observation angles. The coded image serves multiple functions: it documents the stone's scintillation potential, enables comparison across different stones, provides data for grading, and can be referenced in various environments without requiring live demonstration, thus achieving environmental adaptability while preserving visual effectiveness
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 capture and representation of scintillation potential in static images, facilitating objective ranking, comparison, and improved gemstone cutting, while providing a comprehensive and static representation of dynamic scintillation characteristics for use in grading reports and industry assessments.
Implementation Method 1
tracing a ray to the gemstone from the point of observation to a point of intersection of the gemstone; propagating the ray in the gemstone until it exits the gemstone
Implementation Method 2
the stone's ability to reflect, refract, or otherwise act on incoming light in a particular fashion
Data Source
AI summary
Systems and methods for generating an image of a gemstone under evaluation which is coded according to angular ranges in its angular spectrum across a broad range of tilts, this allows for scintillation of a gemstone to be demonstrated based on a singular coded image of the gemstone. Scintillation information is thus presented in a single image, or as a plurality of images showing fire scintillation, flash scintillation, and other scintillation related criteria as a series of static images.