Sample Stage Vibration Mechanism for Confocal Imaging Stability
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Solution Overview
Problem
Conventional confocal imaging systems face challenges in maintaining sample stage stability during imaging, leading to potential movement and blurring of images due to mechanical relaxation, which can result in incomplete or inaccurate representation of the sample, especially during longer exposure times or sequences of exposures.
Innovation Solution
A vibration mechanism, such as an electric motor with an eccentric weight, is integrated with the sample stage to rapidly settle into equilibrium, allowing the stage to move into a stable position within seconds, reducing image distortion and ensuring accurate sample representation during confocal imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the sample stage is moved to multiple positions during imaging, then comprehensive sample coverage is improved, but mechanical relaxation causes stage instability and image blurring
Solution Approach 1:
The patent applies mechanical vibration through a vibration mechanism (such as an eccentric motor) that vibrates the sample stage at a resonant frequency. This vibration rapidly dissipates mechanical energy and reduces relaxation effects, allowing the stage to reach a stable position much faster than passive settling would allow, thereby reducing image blurring while maintaining comprehensive sample coverage
Solution Approach 2:
The vibration mechanism is activated before the imaging process begins and continues during the initial settling period. This preliminary action of vibrating the stage prepares it for stable imaging by rapidly eliminating mechanical relaxation effects before data collection starts, ensuring that the stage is in equilibrium when imaging begins
2Measurement precision
If longer exposure times are used for imaging, then image quality is improved, but sample stage movement causes blurring and incomplete representation
Solution Approach 1:
By applying mechanical vibration during the exposure period, the stage maintains a stable equilibrium position even during longer exposures. The vibration prevents mechanical relaxation from causing drift or movement, thereby maintaining both high image quality and accurate sample representation throughout the extended imaging duration
Solution Approach 2:
The system uses feedback from position sensors (such as encoders) to monitor the stage position in real-time. This feedback allows the control system to make adjustments that maintain stage stability during long exposures, ensuring that the stage remains in the correct position throughout the imaging process and preventing blurring or incomplete representation
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 vibration mechanism significantly reduces the time required for the sample stage to settle, preventing image blurring and ensuring high-quality, stable images are captured, even during longer exposure times or sequences, thereby improving the accuracy and quality of confocal images.
Implementation Method 1
A vibration mechanism, such as an electric motor with an eccentric weight, is integrated with the sample stage to rapidly settle into equilibrium
Implementation Method 2
A vibration mechanism, such as an electric motor with an eccentric weight, is integrated with the sample stage
Data Source
AI summary
An apparatus for generating composite confocal images, comprising: an imaging apparatus configured to generate illumination; a sample stage configured to hold a sample to be illuminated by the illumination, wherein the illumination causes the sample to generate emissions that can be detected and used to image the sample, the sample stage configured to move the sample to a plurality of positions during the imaging process; and a vibration mechanism coupled with the sample stage, the motor configured to vibrate the stage after the stage moves the sample for a vibration period.