Abstract

A sky scanner was developed that collects spectral radiance data over the wavelength range 390–1732 nm by use of two radiometers, the first being a monochromator with a 512-element silicon diode array and the second being a near-infrared acousto-optic tunable filter (AOTF) coupled to an InGaAs detector. The scanner is capable of completing a set of spectral radiance measurements at 146 points in the sky hemisphere in a period of less than 4 min.

© 1997 Optical Society of America

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