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Angular distortion measurements by moire fringe patterns
Angular distortion measurements by moire fringe patterns
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机译:莫尔条纹图案的角度畸变测量
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摘要
A process and apparatus for measuring angular distortion in an optical imaging system in order to provide a mapping that completely characterizes the distortion of the imaging system involves electronically capturing the image of a test pattern at the image plane of the imaging system, superposing a computer generated reference pattern on the test pattern, and measuring the deviation of the test pattern from the reference pattern at selected areas of the reference pattern.
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