28 November 2007 Research on measurement of lens centering errors based on image processing
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Abstract
To combine modern sensor technology with digital image processing, a real-time measurement system of lens centering errors is designed based on CCD sensor. Following transmission principle as well as reflection principle, a scheme that applies two orthogonal light sources to the measurement system is put forward with the combination of cross and double slit reticles. The experimental result shows that the standard deviation of centering errors is up to 0.0019mm, the limit errors is ±0.0057mm. It is proved that the measurement system is of good reliability and practicability for measurement of centering errors. In addition, the designed system is suitable for multi-parameter measurement, including focal length, intercept and curvature radius, etc.
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Yuchi Lin, Guimei Dong, Yinguo Huang, Yijie Niu, "Research on measurement of lens centering errors based on image processing", Proc. SPIE 6834, Optical Design and Testing III, 68341H (28 November 2007); doi: 10.1117/12.756661; https://doi.org/10.1117/12.756661
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