Automated Retardation Measurement

Gerald R. Lange

doi:10.1117/12.944616

2 June 1988 Automated Retardation Measurement

Gerald R. Lange

Proceedings Volume 0899, Optical Storage Technology and Applications; (1988) https://doi.org/10.1117/12.944616
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

Eastman Kodak Company has developed an automated method of measuring double pass optical retardation. The retardation of interest is caused by cover sheet or transparent substrate birefringence of completed optical disks. The method lends itself to producing continuous curves of double pass retardation measurements at a constant radius around a disk or along a line. It is inherently insensitive to the orientation of the optical axes of the sample. The theory, equipment and capabilities will be described.

Citation Download Citation

Gerald R. Lange "Automated Retardation Measurement", Proc. SPIE 0899, Optical Storage Technology and Applications, (2 June 1988); https://doi.org/10.1117/12.944616

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