Open AccessMeasurements of the absolute indices of refraction in strained glass
Author(s) -
L. N. G. Filon
Publication year - 1910
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.1910.0048
Subject(s) - perpendicular , bent molecular geometry , refraction , slab , optics , plane (geometry) , materials science , bending , cross section (physics) , optical axis , beam (structure) , line (geometry) , physics , geometry , composite material , lens (geology) , mathematics , quantum mechanics , geophysics
1. In June, 1907, the author described a method by which the double-refraction in strained glass could be measured by observing the deviation of a ray of light passing through a slab of glass under flexure. If a slab or beam of glass of rectangular cross-section be bent in a vertical plane under a bending moment M, and if a plane wave be transmitted through the glass in a direction perpendicular to the plane of flexure, the light is broken up into two components, one polarised horizontally (i. e . perpendicular to the cross-section and along the line of stress) and the other vertically.