Integrated Optical Measuring System Torsional Stability
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Solution Overview
Problem
Conventional optical measuring systems for polarimetry are bulky and prone to mechanical instability, particularly torsional errors, which compromise measurement accuracy due to the separation of key components like the polarization state generator and analyzer.
Innovation Solution
A compact optical measuring system design where the light source, polarization state generator, sample holder, and polarization state analyzer are directly attached to a mechanical support structure, enhancing stability and reducing torsional susceptibility while allowing for a lighter construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If components are mounted on a solid mechanical support structure to avoid torsions and improve mechanical stability, then measurement accuracy is improved, but the device becomes heavier and has larger structural dimensions
Solution Approach 1:
The patent combines the mechanical support structure and optical bench into a single integrated unit. The PSG and PSA are directly mounted on this unified structure, eliminating the need for separate support structures and reducing overall device weight while maintaining mechanical stability and measurement accuracy
2Measurement precision
If a solid mechanical support structure is used to reduce torsional errors between PSG and PSA, then measurement accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple structural functions into a single integrated support structure that serves as both the mechanical foundation and optical alignment reference. This unification simplifies the overall device architecture while ensuring torsional stability between critical components
Solution Approach 2:
The integrated support structure performs multiple functions simultaneously: providing mechanical stability, serving as an optical reference frame, and supporting all critical components. This multi-functionality reduces the number of separate parts needed and simplifies the overall device design
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
This design improves mechanical stability, reduces torsional errors, and maintains high measurement accuracy by integrating critical components on a single support structure, enabling more precise optical polarization property measurements.
Implementation Method 1
a polarization state generator (PSG), which is arranged downstream of the light source in the analysis beam path and which is configured to provide the measuring light with a defined polarization
Implementation Method 2
the changes in the oscillation plane of linearly polarized light, known as optical rotation and caused by the optical activity of the sample
Implementation Method 3
a polarization state analyzer (PSA), which is arranged downstream with respect to the sample holder in the analysis beam path and which is configured to measure the polarization state of the measuring light after passing through the sample
Data Source
AI summary
An optical measuring system measures polarization optical properties of a sample. The system includes (a) a light source that emits measuring light along an optical axis of an analysis beam path, (b) a polarization state generator, arranged downstream with respect to the light source in the analysis beam path which provides light with a defined polarization state, (c) a sample holder, arranged downstream with respect to the polarization state generator in the analysis beam path which accommodates the sample, (d) a polarization state analyzer, arranged downstream with respect to the sample holder in the analysis beam path which measures the polarization state of the measuring light after passing through the sample, and (e) a mechanical support structure, at which at least the polarization state generator, the sample holder and the polarization state analyzer are directly attached. Also described is a method for producing such an optical measuring system.