Open AccessPreliminary note on a new method of measuring directly the double-refraction in strained glass
Author(s) -
L. N. G. Filon
Publication year - 1907
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1907.0055
Subject(s) - refraction , optics , refractive index , materials science , mathematics , physics
In general the methods employed for observing the double-refraction in strained glass depend on the use of crossed Nicols, and are similar in principle to those used for observing the colours of crystalline plates. So far as thedifference between the two indices of refraction is concerned, a method described by the author allows of continuous observation of the double-refraction throughout the spectrum.