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Proceedings Paper

Generation of contrast-enhanced speckle field and its application to surface roughness measurement
Author(s): Hirofumi Kadono; Shinji Hoshino; Satoru Toyooka
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Paper Abstract

In this study, an optical system to generate contrast- enhanced speckles from ordinary rough surface object is proposed. Its statistical properties are studied as a function of the surface roughness and the defocusing distance in detail with special attention to its application to the determination of the roughness. It is revealed that the contrast of contrast-enhanced speckles depends only on the rms roughness of the rough surface object. Usefulness of the contrast-enhanced speckles on the measurement of surface roughness of the object is experimentally confirmed.

Paper Details

Date Published: 29 April 1999
PDF: 6 pages
Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, (29 April 1999); doi: 10.1117/12.346809
Show Author Affiliations
Hirofumi Kadono, Saitama Univ. (Japan)
Shinji Hoshino, Saitama Univ. (Japan)
Satoru Toyooka, Saitama Univ. (Japan)

Published in SPIE Proceedings Vol. 3729:
Selected Papers from International Conference on Optics and Optoelectronics '98
Kehar Singh; Om Prakash Nijhawan; Arun Kumar Gupta; A. K. Musla, Editor(s)

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