Abstract

A recording interferometer is described which permits the precise measurement of an angle by means of interferometric measurement of chord length. The present instrument, working in conjunction with a recording spectrometer, is applied to the problem of precise wave-length determinations. Preliminary results indicate that the average deviation of a single measurement is 0.044A. The application of this interferometer to the measurement of linear or rotational motion is discussed.

© 1949 Optical Society of America

Direct Determination of Wave-Lengths from Fabry-Perot Interferometer Patterns

George R. Harrison
J. Opt. Soc. Am. 36(11) 644-654 (1946)

Direct Recording of Spectra in the Region 1.2μ to 3μ Using the Lead Sulfide Photo-Conductive Cell*

R. C. Nelson
J. Opt. Soc. Am. 39(1) 68-71 (1949)

Some Variables Influencing Vernier AcuityI. Illumination and Exposure TimeII. Wave-Length of Illumination*

Katherine Eleanor Baker
J. Opt. Soc. Am. 39(7) 567-576 (1949)

Refractive Indices of Water Vapor and Carbon Dioxide at Low Pressure

Kenneth B. Newbound
J. Opt. Soc. Am. 39(10) 835-840 (1949)

Solar Spectroscopy with a Cashman Cell

Robert R. McMath and Orren C. Mohler
J. Opt. Soc. Am. 39(11) 903-906 (1949)