3 September 1985 Visibility Method To Classify Macroscopic Surface Defects For Both Reflection And Transmission Systems.
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Proceedings Volume 0525, Measurement and Effects of Surface Defects & Quality of Polish; (1985); doi: 10.1117/12.946342
Event: 1985 Los Angeles Technical Symposium, 1985, Los Angeles, United States
Abstract
We define an objective method to classify defects based on their visibility : If a sample is illuminated against a black background, the observer sees only the defects. Now we replace the black background by an other with finite luminance. Some defects will become invisible, others will still be seen. If we change the illumination on the sample, the threshold between "seen and not seen" defects will be changed. With one standard defect and the la,' of gradation of the object luminance, we can classify all macroscopic surface defects.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Aline Huard, "Visibility Method To Classify Macroscopic Surface Defects For Both Reflection And Transmission Systems.", Proc. SPIE 0525, Measurement and Effects of Surface Defects & Quality of Polish, (3 September 1985); doi: 10.1117/12.946342; https://doi.org/10.1117/12.946342
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KEYWORDS
Reflection

Lawrencium

Objectives

Inspection

Polishing

Visibility

Surface finishing

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