Infrared Raman Optical Integration for Compact Mode Switching
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Solution Overview
Problem
Conventional infrared Raman devices face issues with increased size around the objective optical system and require positional adjustment of the sample during measurement mode switching.
Innovation Solution
The infrared Raman device incorporates an objective lens for Raman measurement, a first observation lens for infrared measurement, a laser light source, a first infrared light source, and a mirror that reflects laser light through the objective lens to enable Raman measurement, with the objective lens switching to the first observation lens for infrared measurement, and the mirror partially reflecting infrared light to reduce system size and eliminate the need for sample repositioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate objective lenses are used for Raman and infrared measurement, then measurement functionality is improved, but device size around the objective optical system increases
Solution Approach 1:
The patent combines the Raman measurement objective lens and infrared measurement objective lens into a single integrated objective optical system. The mirror is positioned to reflect laser light through the objective lens for Raman measurement, and the optical paths are designed to coincide, allowing both measurement functions to share the same physical space and reduce overall device size.
Solution Approach 2:
The objective optical system is designed to perform multiple functions: it serves as both the Raman measurement objective lens and the infrared measurement objective lens. By making the optical paths coincide and using the same physical lens assembly for both wavelengths, the system achieves multi-functionality without requiring separate dedicated lenses for each measurement type.
2Adaptability or versatility
If separate optical paths are used for Raman and infrared measurement, then measurement mode switching is enabled, but sample positional adjustment is required
Solution Approach 1:
The patent merges the optical paths of Raman and infrared measurement by positioning the mirror to reflect laser light through the objective lens and designing the optical paths to coincide. This integration ensures that the sample remains in the same focal position for both measurement modes, eliminating the need for positional adjustment during mode switching.
Solution Approach 2:
The optical paths are designed to be equipotential in terms of sample positioning - both Raman and infrared measurement paths are aligned to the same sample plane and focal point. This creates a state where switching between measurement modes does not require sample repositioning, as both modes operate from the same optical potential reference point.
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 configuration allows for reduced size around the objective optical system and eliminates the need for sample repositioning during measurement mode switching, enabling efficient Raman and infrared measurements without additional adjustments.
Implementation Method 1
The mirror is disposed at time of the Raman measurement to reflect the laser light to cause the laser light to pass through the objective lens for Raman measurement and reflect Raman light generated from the sample
Implementation Method 2
The mirror is disposed at the time of the first infrared measurement to partially reflect the first infrared light to cause the first infrared light to pass through the first observation lens for infrared measurement and transmit the first infrared light that is reflected by the sample
Data Source
AI summary
An infrared Raman device is capable of switching and performing Raman measurement and first infrared measurement on a sample. The infrared Raman device includes an objective lens for Raman measurement; a first observation lens for infrared measurement; a laser light source that generates laser light; a first infrared light source that generates first infrared light; and a mirror. The mirror is disposed at time of the Raman measurement to reflect the laser light to cause the laser light to pass through the objective lens for Raman measurement and reflect Raman light generated from the sample by the laser light that passes through the objective lens for Raman measurement and radiated to the sample. The Raman light passes back through the objective lens for Raman measurement.