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Proceedings Paper

Detection of micro-sized air bubble defects in optical glass based on Mie theory
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Paper Abstract

Mie scattering theory was shown in this paper to be suitable for analyzing the forward scattered light intensity distribution of micro-sized air bubble defects in glass, shining by a monochrome laser with a wavelength of 532um. The scattered light was measured by a high definition CCD camera. The scattering process can be classified as uncorrelated single scattering according to the properties of optical media. After calculating and smoothing the gray value of split rings of picture, Chahine algorithm was applied to reverse the size of defects. This technique was accurate to within 5% for defects with radii of <50um.

Paper Details

Date Published: 8 October 2015
PDF: 7 pages
Proc. SPIE 9677, AOPC 2015: Optical Test, Measurement, and Equipment, 96770R (8 October 2015); doi: 10.1117/12.2199047
Show Author Affiliations
Sai Zhang, Zhejiang Univ. (China)
Jian Bai, Zhejiang Univ. (China)
Kaiwei Wang, Zhejiang Univ. (China)
Fan He, Zhejiang Univ. (China)
Bin Zhou, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 9677:
AOPC 2015: Optical Test, Measurement, and Equipment
Sen Han; Jonathan D. Ellis; Junpeng Guo; Yongcai Guo, Editor(s)

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