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Radiometry: Sensing the World



Steven W. Brown, Bettye C. Johnson, Keith R. Lykke


Light is the supreme messenger. Light tells us something about the cosmos, the make-up of our bodies, and nearly everything in between. Light carries structural information, chemical information, and information on position and speed, as well as temperature. The information is coded by pattern, color, and intensity. This article will describe some of the latest methods that have been developed to make accurate measurements of light a reality. We describe three current research programs to establish measurement chains between the fundamentals optical flux measurements to the more practical quantities of commercial and scientific interest-spectral irradiance, spectral radiance, and radiance temperature.
Optics and Photonics News
No. 2


light, radiance, spectral


Brown, S. , Johnson, B. and Lykke, K. (2001), Radiometry: Sensing the World, Optics and Photonics News (Accessed April 15, 2024)
Created February 1, 2001, Updated February 17, 2017