Confocal Microscope Optical Element for Spectral Division
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current confocal laser scanning microscopes are limited in their ability to efficiently investigate different spectral regions of detected light, which hinders the precise separation and detection of various fluorescent markers and processes in samples.
Innovation Solution
A confocal laser scanning microscope design that includes a main beam splitter and an optical element between the detection aperture and detector units, capable of separating detected light into multiple beam bundles and spectrally dividing it, allowing for precise detection of multiple wavelength regions, and optionally using prism arrangements or light-guiding fibers for further spectral limitation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detected light is separated into multiple beam bundles and spectrally divided using an optical element, then measurement precision for multiple wavelength regions is improved, but device complexity increases
Solution Approach 1:
The detected light beam is segmented into multiple beam bundles by a beam splitting optical element, with each bundle directed to a separate detector unit for independent spectral analysis. This segmentation enables simultaneous detection of multiple wavelength regions while maintaining precise spectral resolution through dedicated detection paths for each bundle.
2Adaptability or versatility
If multiple detector units are used to detect different spectral regions, then adaptability for investigating different fluorescent markers is improved, but device complexity increases
Solution Approach 1:
The optical element is designed with multiple output surfaces that can be configured to direct different spectral ranges to respective detector units. This multi-functional design allows the same optical element to handle multiple fluorescent markers with different emission spectra simultaneously, providing universal adaptability without requiring separate optical paths for each marker.
3Productivity
If the optical element separates detected light into multiple beam bundles, then productivity for investigating multiple spectral regions is improved, but device complexity increases
Solution Approach 1:
Multiple spectral detection functions are merged into a single integrated optical element with multiple output surfaces. This consolidation allows simultaneous separation of detected light into multiple beam bundles that are directed to different detector units, enabling parallel detection of multiple spectral regions and improving productivity while minimizing the number of separate optical components required.
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 precise separation and detection of multiple wavelength regions, enhancing the microscope's suitability for applications like FLIM, FCS, and FRET, and allowing for flexible selection of spectral regions, improving the robustness and transmittance of the microscope.
Implementation Method 1
an optical element arranged between the detection aperture and the detector units in the beam direction, and separates the detected light into at least two beam bundles and spectrally divides it within the beam bundles
Implementation Method 2
a main beam splitter configured to separate the illumination light beam from detected light proceeding from the sample
Data Source
AI summary
A confocal laser scanning microscope for examining a sample has a light source, which generates an illumination light beam, and a scanning unit which deflects the illumination light beam such that it optically scans the sample. A main beam splitter separates the illumination light beam from detection light emerging from the sample. The detection light separated from the illumination light beam passes at least partially through a detection pinhole diaphragm. At least two detector units detect the detection light passing through the detection pinhole diaphragm. An optical element is arranged in the beam direction between the detection pinhole diaphragm and the detector units and splits the detection light into at least two beam bundles and spectrally decomposes it within the beam bundles.