A brief account of the beginnings of photometry, with emphasis on some of the early attempts to quantify light that preceded the actual invention of useful photometers, is presented.
© 1971 Optical Society of America
Original Manuscript: September 1, 1970
Published: December 1, 1971
W. E. Knowles Middleton, "The Beginnings of Photometry," Appl. Opt. 10, 2592-2594 (1971)