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An improved polarizing microscope. V. The ore-microscope1

Published online by Cambridge University Press:  14 March 2018

A. F. Hallimond  and
E. Wilfred Taylor
A. F. Hallimond
Affiliation:
Messrs. Cooke, Troughton & Simms, Ltd., York
E. Wilfred Taylor
Affiliation:
Messrs. Cooke, Troughton & Simms, Ltd., York
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Extract

Examination in reflected polarized light is now widely used in metallography as well as for mineral sections. The recent introduction of graded diamond abrasives has overcome most of the difficulties in polishing that have previously hindered the widespread use of this important method.

The present instrument (fig. 1) has been designed to give the best available control over the conditions of illumination and extinction, and to provide for the complete analysis of the reflected elliptically-polarized beam. A robust stand of normal grade suitable for general research purposes and works control is provided with a stage rack, reflector unit, and the usual polarizing equipment. It may be adapted for transmitted light by the addition of the detachable substage shown on the right of the figure.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 30 , Issue 220 , March 1953 , pp. 49 - 56
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1953

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Footnotes

1

Parts I-IV, Min. Mag., 1946, vol. 27, p. 175; 1947, vol. 28, p. 96; 1948, vol. 28, p. 296; 1950, vol. 29, p. 150.

References

page 49 note on 2. See Grenville-Wells, H. J., Indust. Diamond Rev., 1949, vol. 9, p. 360 Google Scholar.

page 50 note on 1. Utilized by Capdecomme, L. and Orcel, J., Rev. d'optique théor, et instr. 1941, vol. 20, p. 47 Google Scholar.

page 51 note on 1. Mort, B. W., Haines, H. R., and Woodrow, J., Atomic Energy Research Establishment, Report M/R856, 1952, Harwell Google Scholar.

page 51 note on 2. A. F. Hallimond, Brit. Pat. 638334/1950. Property of the National Research Development Corporation.

page 53 note on 1. Berek, M., Fortsch. Min. Krist. Petr., 1937, vol. 22, p. 1. [M.A. 7-250.]Google Scholar

page 55 note on 1. A. Schuster and J. W. Nicholson, Theory of optics. 3rd edit., 1924, p. 14.

page 55 note on 2. Poincaré, H., Théorie mathématique de la lumière, II. 1892, p. 275 Google Scholar.

page 55 note on 3. C. Burri, Das Polarisationsmikroskop. Basel, 1950, p. 31. [M.A. 11-181.]