Multiplication and extraction of isochromatics from color photoelastic fringes obtained in plane polariscope

Eisaku Umezaki; Kenichi Kodama

doi:10.1117/12.427043

8 May 2001 Multiplication and extraction of isochromatics from color photoelastic fringes obtained in plane polariscope

Eisaku Umezaki, Kenichi Kodama

Proceedings Volume 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001); (2001) https://doi.org/10.1117/12.427043
Event: Optical Engineering for Sensing and Nanotechnology (ICOSN '01), 2001, Yokohama, Japan

Abstract

This study deals with a method for multiplying and extracting continuous isochromatics from color photoelastic fringes obtained in plane polariscopes with a tricolor light source. In the method, isochromatics are taken using a color CCD camera in dark-and light-field plane polariscopes. The four color images, which contain both isochromatic and isoclinics, for the dark and light fields are used to obtain only color isochromatics. The color isochromatic images are separated into R, G and B images. The number of fringes is trebled when the three color images with extracted fringes of 0.5, 1.5, 2.5,... order are superimposed. In order to investigate the effectiveness of the multiplication and extraction, this method was applied to color photoelastic fringes obtained in an epoxy resin plate under 4-point bending.

Citation Download Citation

Eisaku Umezaki and Kenichi Kodama "Multiplication and extraction of isochromatics from color photoelastic fringes obtained in plane polariscope", Proc. SPIE 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), (8 May 2001); https://doi.org/10.1117/12.427043

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