OSA Publishing

1 September 1920, Volume 4, Issue 5, pp. 243-406   17 articles

A Focal-Length Equation

J. Opt. Soc. Am. 4(5), 243-244 (1920)  View: HTML | PDF

Note on Professor Woodworth’s Formula for Focal Length

J. Opt. Soc. Am. 4(5), 245-248 (1920)  View: HTML | PDF

Some General Characteristics of Spectro-photo-electrical Conduction in Solids

J. Opt. Soc. Am. 4(5), 249-254 (1920)  View: HTML | PDF

On the Relation Between Photographic Density, Light Intensity, and Exposure Time

J. Opt. Soc. Am. 4(5), 255-273 (1920)  View: HTML | PDF

The Cemented Telescope Objective of Barium Crown and Flint

J. Opt. Soc. Am. 4(5), 274-282 (1920)  View: HTML | PDF

Note on the Path of a Ray Through a Prism in a Principal Section

J. Opt. Soc. Am. 4(5), 283-285 (1920)  View: HTML | PDF

The Treatment of Certain Special Cases in Lens Calculation

J. Opt. Soc. Am. 4(5), 286-293 (1920)  View: HTML | PDF

Note on Calculation of Path of Ray Through a Symmetrical Optical Instrument

J. Opt. Soc. Am. 4(5), 294-299 (1920)  View: HTML | PDF

A New Method for the Measurement of Photographic Filter Factors

J. Opt. Soc. Am. 4(5), 300-304 (1920)  View: HTML | PDF

1919 Report of Standards Committee on Pyrometry

J. Opt. Soc. Am. 4(5), 305-305 (1920)  View: PDF

A Coöperative College Course in Illuminating Engineering

J. Opt. Soc. Am. 4(5), 337-339 (1920)  View: HTML | PDF

The Absorption of Heat in Glass

J. Opt. Soc. Am. 4(5), 340-363 (1920)  View: HTML | PDF

Resonance Potentials and Low-Voltage Arcs for Metals of the Second Group of the Periodic Table

J. Opt. Soc. Am. 4(5), 364-370 (1920)  View: HTML | PDF

The Precision of Photometric Measurements

J. Opt. Soc. Am. 4(5), 371-387 (1920)  View: HTML | PDF

Note on the Relation Between the Frequencies of Complementary Hues

J. Opt. Soc. Am. 4(5), 402-404 (1920)  View: HTML | PDF

Reviews

J. Opt. Soc. Am. 4(5), 405-406 (1920)  View: HTML | PDF

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