Abstract

A scale of spectral irradiance has been realized for the 400-700-nm wavelength range based on absolute silicon photodetectors with wavelengths selected by interference filters. Using this equipment, an absolute radiometric scale was produced independent of the traditional approaches to absolute radiometry based on either the thermal physics of blackbodies or absolute thermal detectors. From these data, a photometric scale of luminous intensity has been realized. The detector based scales were compared with blackbody scales by calibrating lamps relative to both scales.

© 1986 Optical Society of America