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Detection method of inclination angle in image measurement based on improved triangulation
Applied Optics
|May 14, 2015
Summary
This study introduces a new laser triangulation method using multiple beams to correct microscope image distortion caused by stage tilting. The developed device accurately measures inclination angles in real-time, enhancing measurement precision.
Area of Science:
- Optical Metrology
- Microscopy Instrumentation
Background:
- Microscope image distortion impacts measurement accuracy.
- Stage tilting during laser scanning introduces inclination angles, a significant error source.
Purpose of the Study:
- To develop a novel technique for correcting inclination-induced distortion in laser scanning microscopy.
- To propose a multi-light-spot measurement device for real-time inclination angle detection.
Main Methods:
- Improvement of the traditional laser triangulation method using multiple parallel laser beams.
- Development of a multi-light-spot measurement device based on the enhanced laser triangulation technique.
Main Results:
- The proposed device accurately detects the degree and directions of inclination angles in real-time.
- Experimental results demonstrate effective detection of small inclination angles with a precision of ±0.5 μrad.
Conclusions:
- The novel technique effectively solves the inclination problem in laser scanning microscopy.
- The multi-light-spot measurement system offers high precision for real-time inclination angle measurement, improving overall accuracy.
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