By Yoshihiro Ohno.
Cited passages: Abstract: distinction between radiometry and photometry; Abstract: luminous flux in lumens and spectral weighting; Abstract: radiometric quantities and units; photometry weights radiation by the eye's spectral response.
Yoshihiro Ohno Created 2026-10-13 Updated 2026-10-24
Portrait of Yoshihiro Ohno
. Yoshihiro (Yoshi) Ohno in NIST’s Spectrally Tunable Lighting Facility. Credit: R. Wilson/NIST. No reuse licence is asserted. Source.