Abstract
IN tracing by the usual methods the course of rays through one of the polarising prisms recently devised and constructed by Mr. C. D. Ahrens (described in the Journal of the Royal Microscopical Society for September 1884, and in the Philosophical Magazine for last month), I found that, in the case of a ray incident in a direction parallel to the axis of the prism, that component of it which passes through the middle spar-prism as the ordinary ray falls on the second surface of that prism at an angle of 42° 35′.
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
MADAN, H. On a Modification of Foucault's and Ahrens's Polarising Prisms . Nature 31, 371–372 (1885). https://doi.org/10.1038/031371b0
Issue Date:
DOI: https://doi.org/10.1038/031371b0