1 March 1939, Volume 29, Issue 3, pp. 103-145  
6 articles

Terminology and Standards of Illumination

J. Opt. Soc. Am. 29(3), 103-107 (1939)  View: HTML | PDF

Basic Principles in Illumination Calculations

J. Opt. Soc. Am. 29(3), 108-116 (1939)  View: HTML | PDF

The Operating Characteristics of Incandescent Lamps

J. Opt. Soc. Am. 29(3), 117-123 (1939)  View: HTML | PDF

High Efficiency Mercury and Sodium Vapor Lamps

J. Opt. Soc. Am. 29(3), 124-130 (1939)  View: HTML | PDF

The Basis for High Efficiency in Fluorescent Lamps

J. Opt. Soc. Am. 29(3), 131-134 (1939)  View: HTML | PDF