Microscope Optical Exchange Access Detection to Avoid Recalibration
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Solution Overview
Problem
Calibrating microscopes after changing optical elements is a time-consuming process that reduces the microscope's availability for experiments.
Innovation Solution
An imaging system with an exchange device featuring a bistable element and sensors to detect the state of an access element, allowing access to optical elements, and a control unit to determine if recalibration is needed based on the element's state, thereby minimizing unnecessary calibration procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the access element is made accessible for easy optical element replacement, then the ease of operation is improved, but the risk of misalignment and need for calibration increases
Solution Approach 1:
The system performs preliminary detection of the access element state using the bistable element and sensor before allowing optical element replacement. This preliminary action identifies when the access element has been opened, enabling the control unit to preemptively determine whether recalibration is needed before the next imaging operation, thus preventing misalignment issues without requiring constant calibration.
2Measurement precision
If calibration is performed after every optical element change, then the measurement precision is ensured, but the loss of time increases
Solution Approach 1:
The system implements feedback through the bistable element that changes state when the access element is opened. The sensor detects this state change and provides feedback to the control unit, which then determines whether recalibration is necessary. This feedback mechanism ensures that calibration is performed only when actually needed (after access element opening), avoiding unnecessary calibration time while maintaining imaging accuracy.
Solution Approach 2:
The system changes the parameter of the access element state detection from continuous monitoring to discrete state detection using the bistable element. The bistable element provides a clear binary state (open/closed) that triggers calibration only when necessary, changing the calibration parameter from frequent to conditional based on actual access events.
3Reliability
If the access element is secured to prevent unauthorized access, then the reliability of optical alignment is improved, but the ease of operation for legitimate access decreases
Solution Approach 1:
The bistable element acts as an intermediary between the access element and the control unit. It translates the physical state of the access element (open/closed) into a detectable signal that triggers appropriate actions. This intermediary mechanism provides secure protection against unauthorized access while maintaining ease of operation for legitimate users who need to replace optical elements, as the system automatically manages calibration based on the bistable element's state.
Data Source
Figure 1
Figure 2a
Figure 2b~2d
AI summary
An imaging system (100) comprises an exchange device (102) with an exchange holder (108) configured to accommodate at least one optical element (106) and thereby arrange it in an optical beam path (104) of the imaging system (100), and an access element (112) having an open and a closed state and configured to allow access to the optical element (106) held in the exchange holder (108) in the open state. The exchange device (102) further comprises a bistable element (114) having a first stable state and a second stable state and configured to transition from the first stable state to the second stable state when the access element (112) is opened and to remain in the second stable state when the access element (112) is closed.The imaging system (100) further comprises a control unit (120) which is configured to determine whether the bistable element (114) is in the first stable state or the second stable state, and to determine that the access element (112) has been opened and thus access to the optical element (106) held in the interchangeable holder (108) has been enabled when the bistable element (114) is in the second stable state.