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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 7, Iss. 5 — May. 1, 1968
  • pp: 837–843

Methods in High Precision Refractometry of Optical Glasses

Alan J. Werner  »View Author Affiliations


Applied Optics, Vol. 7, Issue 5, pp. 837-843 (1968)
http://dx.doi.org/10.1364/AO.7.000837


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Abstract

Five refractive methods and an interferometric method for measuring refractive indices of optical glasses to a precision of several units in the sixth or seventh decimal place are examined. Tables and graphs are presented as aids in evaluating the various methods. Reduction to standard conditions of temperature, pressure, and humidity is also discussed. The minimum deviation method provides greater precision than the autocollimating method for the same precision in angle measurement. The V block, immersion, and critical angle methods, being comparative methods, provide lower precision. A proposed interferometer method shows capability for seventh place accuracy.

© 1968 Optical Society of America

History
Original Manuscript: December 18, 1967
Published: May 1, 1968

Citation
Alan J. Werner, "Methods in High Precision Refractometry of Optical Glasses," Appl. Opt. 7, 837-843 (1968)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-7-5-837


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