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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 28 — Oct. 1, 2001
  • pp: 5034–5039

On-line measurement of the thickness and optical quality of float glass with a sensor based on a diffractive element

Jari Räsänen and Kai-Erik Peiponen  »View Author Affiliations


Applied Optics, Vol. 40, Issue 28, pp. 5034-5039 (2001)
http://dx.doi.org/10.1364/AO.40.005034


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Abstract

An on-line apparatus for accurate measurement of float-glass thickness and edge distortion was built and tested in industrial environments. The intelligent part of the sensor is a diffractive optical element. The theory and construction of the apparatus are described, and data from on-line measurements are presented.

© 2001 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(100.2000) Image processing : Digital image processing
(150.3040) Machine vision : Industrial inspection

History
Original Manuscript: October 16, 2000
Revised Manuscript: May 16, 2001
Published: October 1, 2001

Citation
Jari Räsänen and Kai-Erik Peiponen, "On-line measurement of the thickness and optical quality of float glass with a sensor based on a diffractive element," Appl. Opt. 40, 5034-5039 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-28-5034


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References

  1. J. Bretschneider, “Application of optical testing procedures to quality control of flat glass,” Glastech. Ber. 61, 172–175 (1988).
  2. V. Caimann, “Optische Prüfung gezogener Flachgläser,” Glastech. Ber. 47, 131–139 (1974).
  3. M. Savolainen, K.-E. Peiponen, P. Savander, R. Silvennoinen, H. Vehviläinen, “Novel optical techniques for window glass inspection,” Meas. Sci. Technol. 6, 1016–1021 (1995). [CrossRef]
  4. K.-E. Peiponen, J. T. Räsänen, “Micro-optical elements for glass quality inspection,” in Proceedings of Glass Processing Days, J. Vitkala, ed. (Tamglass Ltd, Tampere, Finland, 1999), pp. 9–11.
  5. R. Silvennoinen, K.-E. Peiponen, T. Asakura, “Diffractive optical elements in materials inspection,” in International Trends in Optics and Photonics ICO IV, T. Asakura, ed. (Springer, Heidelberg, 1999). [CrossRef]
  6. M. Nieto-Vesperinas, Scattering and Diffraction in Physical Optics (Wiley, New York, 1991).
  7. R. Silvennoinen, K.-E. Peiponen, J. Räty, “Detection of refractive index change of liquids by diffractive element based sensor,” Opt. Rev. 6, 68–70 (1999). [CrossRef]
  8. A. Jääskeläinen, R. Silvennoinen, K.-E. Peiponen, J. Räty, “On measurement of complex refractive index of liquids by diffractive element-based sensor,” Opt. Commun. 178, 53–57 (2000). [CrossRef]

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