Detector-Based Luminous Flux Calibration using the Absolute Integrating-Sphere Method

Abstract

The Absolute Integrating-Sphere Method was developed and introduced by NIST for the realization of the luminous flux unit using an integrating sphere rather than a goniophotometer. The total luminous flux of a lamp inside the sphere is calibrated against the known amount of flux introduced into the sphere from the external source through a calibrated… (More)

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