A working design of a simple retardance meter is indicated. The device permits direct, quick, and accurate measurement of the retardance, for example, of an oriented polymeric film which is intended for use as a phase changer plate in the production of elliptically polarized light. The method involves the direct compensation of the sample’s retardance using the calibrated retardance of a mica crystal which is variably tilted about one of its two principal planar axes. Several suggestions relating to the optical design, assembly, and calibration of the device are included.
© 1967 Optical Society of America
Original Manuscript: June 5, 1967
Published: October 1, 1967
Albert S. Makas, "A Practical Design of a Simple Retardance Meter," Appl. Opt. 6, 1773-1776 (1967)