3 September 1985 Tunable Scratch Standards
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Proceedings Volume 0525, Measurement and Effects of Surface Defects & Quality of Polish; (1985) https://doi.org/10.1117/12.946347
Event: 1985 Los Angeles Technical Symposium, 1985, Los Angeles, United States
Abstract
The scratch standard. (MIL-0-13830A) is a cosmetic standard. that is effected by a visual comparison with a set of submasters that is in turn evaluated by comparison with a set of master standards. Both manufacture and certification of the submasters are somewhat unre-liable. In this paper, we show that the submasters can be classified. according to the relative power scattered at a relatively small angle. We have designed etched gratings with Which. to replace the submasters; these gratings have the appearance of scratches but diffract a broad peak between, 5 and 10 degrees off the axis of the incident beam. We have classified some prototypes both by comparison with the master standards and by a photo-electric measurement; agreement between. the two methods is good. We suggest that such gratings be used as the submasters and possibly that they be classified by a photoelectric rather than visual measurement.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matt Young, Eric G. Johnson, Richard Goldgraben, "Tunable Scratch Standards", Proc. SPIE 0525, Measurement and Effects of Surface Defects & Quality of Polish, (3 September 1985); doi: 10.1117/12.946347; https://doi.org/10.1117/12.946347
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