Bioparticle Analyzer Optical Filter for Laser Protection
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Solution Overview
Problem
The deterioration of optical components in scattered light detection systems due to laser beam exposure, particularly with improved laser beam power density, leads to a decrease in optical quality and detection accuracy in bioparticle analysis.
Innovation Solution
Incorporating an optical filter with wavelength selectivity in the scattered light detection module to separate and redirect or absorb non-essential light from the laser beam, preventing it from reaching the objective lens and other optical components, thereby maintaining their optical quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laser beam power density is improved to enhance detection sensitivity, then detection sensitivity is improved, but adhesive deterioration occurs leading to deterioration of optical quality
Solution Approach 1:
A beam splitter is introduced as an intermediary component between the laser beam and the objective lens. The beam splitter separates the laser beam into a reference beam and a measurement beam, allowing the measurement beam to reach the sample while preventing the full intensity laser beam from directly exposing the objective lens adhesive, thus resolving the contradiction between detection sensitivity and optical quality reliability
2Illumination intensity
If laser beam is directed through the objective lens to achieve focused illumination, then illumination intensity is improved, but adhesive deterioration occurs
Solution Approach 1:
The optical path is segmented using a beam splitter that divides the laser beam into separate pathways. The reference beam pathway allows intensity monitoring without sample exposure, while the measurement beam pathway provides focused illumination on the sample. This segmentation enables focused illumination intensity improvement while protecting the objective lens adhesive from direct high-intensity laser exposure
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
The solution effectively prevents adhesive deterioration and maintains the optical quality of components, ensuring accurate detection of scattered light and improving the overall performance of bioparticle analysis systems.
Implementation Method 1
an optical filter configured to separate from scattered light generated by irradiating a bioparticle flowing through a channel with a laser beam and from partial light in the laser beam
Implementation Method 2
an objective lens on which the scattered light separated by the optical filter is incident
Data Source
AI summary
Provided is a bioparticle analyzer including a scattered light detection module including an optical filter that separates, from a partial light in laser beam, scattered light generated by irradiating a bioparticle flowing through a channel with the laser beam, and an objective lens on which the scattered light separated by the optical filter is incident. Furthermore, the present technology also provides a microparticle analyzer including a scattered light detection module including an optical filter that separates, from a partial light in a laser beam, scattered light generated by irradiating a microparticle flowing through a channel with the laser beam, and an objective lens on which the scattered light separated by the optical filter is incident.