Material Sample Detection With Rotatable Mirror Spectral Switching
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Solution Overview
Problem
Existing measuring apparatuses struggle to accurately assign measured radiation to a specific spectral range and require complex adjustments for switching between different spectral measurement regions.
Innovation Solution
The apparatus employs a rotatable mirror in the illumination device to selectively steer electromagnetic radiation from multiple radiation sources onto a material sample, synchronized with a deflection element in the detection device to ensure quick and accurate switching between spectral ranges, using redundant or differently structured radiation sources and detectors with synchronized movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a rotary mirror is used to sequentially steer radiation to individual detectors, then the device complexity is reduced, but the measurement precision of spectral range assignment deteriorates
Solution Approach 1:
The detection system is segmented into multiple independent detector modules, each dedicated to a specific spectral range. Each detector module has its own stationary optics and detection elements, eliminating the need for moving parts while maintaining the ability to measure different spectral ranges simultaneously or sequentially.
Solution Approach 2:
Each detector module is designed with universal functionality to handle both excitation radiation and emission radiation within its assigned spectral range. The detectors can selectively detect different wavelength ranges using fixed optical elements and filters, providing multi-functional capability without requiring mechanical reconfiguration.
2Adaptability or versatility
If multiple radiation sources with different structures are used, then the adaptability for different spectral measurement regions is improved, but the device complexity increases
Solution Approach 1:
The illumination system is divided into multiple independent radiation source modules, each optimized for a specific spectral range. Each module contains a dedicated radiation source (e.g., LED, laser, or lamp) with fixed optical elements, allowing selective activation based on the required spectral range without reconfiguring the entire system.
Solution Approach 2:
The system dynamically selects and activates specific radiation source modules based on the required spectral measurement range. This dynamic selection is achieved through electronic control of individual LED drivers or laser diodes, enabling quick switching between different spectral ranges without mechanical movement or complex reconfiguration.
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 rapid and precise spectral measurements by allowing quick switching between radiation sources and detectors, ensuring accurate spectral range assignment without complex adjustments, suitable for fluorescence analysis and other applications.
Implementation Method 1
The illumination device comprises at least two radiation sources such that the radiation from one radiation source or the radiation from the other radiation source can be selectively steered onto the material sample
Implementation Method 2
The detection device comprises a deflection element by means of which the radiation emanating from the material sample can be selectively steered onto one of the detectors
Implementation Method 3
The apparatus according to the invention is particularly suitable for fluorescence analysis, in which the material sample is excited by polychromatic radiation or radiation in a limited spectral range, and the fluorescence radiation emitted by the material sample in a predetermined direction in the process is evaluated with the aid of the detection device
Data Source
AI summary
A device for examining material samples via electromagnetic radiation. The device comprises a lighting unit for generating the electromagnetic radiation with at least two radiation sources. The radiation of the radiation sources can be selectively directed onto the material sample. The device further comprises a detection unit having at least two detectors for capturing electromagnetic radiation emanating from the material sample. A deflection element is arranged in the detection unit, via which the electromagnetic radiation emanating from the material sample can be selectively deflected onto one of the detectors. This deflection element comprises a mirror, via which the radiation emanating from the material sample can be selectively deflected onto one of the detectors. The mirror is rotated about an axis extending substantially perpendicular to the optical axes of the detectors.