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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 34, Iss. 19 — Jul. 1, 1995
  • pp: 3810–3825

Quantitative rainbow schlieren deflectometry

Paul S. Greenberg, Robert B. Klimek, and Donald R. Buchele  »View Author Affiliations


Applied Optics, Vol. 34, Issue 19, pp. 3810-3825 (1995)
http://dx.doi.org/10.1364/AO.34.003810


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Abstract

In the rainbow schlieren apparatus, a continuously graded rainbow filter is placed in the back focal plane of the decollimating lens. Refractive-index gradients in the test section thus appear as gradations in hue rather than irradiance. A simple system is described wherein a conventional color CCD array and video digitizer are used to quantify accurately the color attributes of the resulting image, and hence the associated ray deflections. The present system provides a sensitivity comparable with that of conventional interferometry, while being simpler to implement and less sensitive to mechanical misalignment.

© 1995 Optical Society of America

History
Original Manuscript: July 11, 1994
Revised Manuscript: October 11, 1994
Published: July 1, 1995

Citation
Paul S. Greenberg, Robert B. Klimek, and Donald R. Buchele, "Quantitative rainbow schlieren deflectometry," Appl. Opt. 34, 3810-3825 (1995)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-34-19-3810

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