UV/Vis Gemstone Spectroscopy for Mounted and Translucent Samples
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Solution Overview
Problem
Existing gemstone identification systems lack the ability to accurately analyze translucent samples and mounted jewelry without dismantling, and are inadequate for measuring fluorescence, phosphorescence, and time-resolved properties.
Innovation Solution
A UV/Vis spectrometer system with a bifurcated reflectance subsystem and a dedicated mount for mounted jewelry, capable of reflectance spectroscopy, fluorescence, and time-resolved measurements, allowing analysis of translucent gemstones and mounted samples.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional transmission spectrometry is used, then measurement accuracy for transparent samples is improved, but the system cannot analyze translucent samples and mounted jewelry
Solution Approach 1:
The system integrates multiple measurement geometries (transmission, reflectance, fluorescence) into a single spectrometry platform, enabling it to analyze diverse sample types including transparent gemstones, translucent samples, and mounted jewelry through different optical paths and detection modes
2Measurement precision
If the system is designed for specific measurement types, then measurement precision for that type is improved, but the system cannot perform multiple testing scenarios
Solution Approach 1:
The spectrometry system incorporates multiple light sources (deuterium lamp for UV, tungsten halogen for visible), multiple detectors, and interchangeable optical configurations that enable it to perform transmission spectrometry, reflectance spectrometry, fluorescence measurement, and phosphorescence measurement within a single integrated platform
Solution Approach 2:
The system employs dynamic configuration capabilities including movable components and switchable optical paths that allow transition between different measurement modes (transmission/reflectance/fluorescence) and adjustable parameters such as integration time and excitation wavelength to optimize performance for each specific measurement scenario
3Device complexity
If the probe is fixed in position, then device complexity is reduced, but the system cannot accommodate different sample sizes and mounting configurations
Solution Approach 1:
The probe assembly incorporates movable stages and adjustable positioning mechanisms that enable dynamic adjustment of probe-to-sample distance and angle, allowing accommodation of various sample sizes, shapes, and mounting configurations while maintaining optimal optical coupling and measurement geometry
4Adaptability or versatility
If multiple features (Fluorescence, Phosphorescence, Time-resolved) are added to old hardware, then measurement capability is improved, but device complexity and difficulty of modification increase
Solution Approach 1:
The system merges multiple measurement capabilities (transmission, reflectance, fluorescence, phosphorescence, time-resolved) into a single integrated spectrometry platform by combining multiple light sources, detectors, and optical components that can operate in different modes, eliminating the need for separate instruments
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 efficient, accurate analysis of mounted gemstones and pearls with improved signal-to-noise ratio, supporting multiple testing scenarios and rapid measurement times.
Implementation Method 1
the reflectance light source has a wavelength between 190 nm and 2500 nm... the reflectance light source is either deuterium and/or tungsten halogen
Implementation Method 2
the reflectance light source is either deuterium and/or tungsten halogen... has a wavelength between 200 nm and 400 nm for a fluorescence analysis
Implementation Method 3
Ultraviolet-visible absorption spectroscopy for gemstone identification
Implementation Method 4
causing display of a fluorescence graph of the received response signal... has a wavelength between 200 nm and 400 nm for a fluorescence analysis
Data Source
AI summary
Systems and methods here may be used for capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, for both reflective and transmission modes.